Unbenanntes Dokument Rosetta Mars Express Venus Express MaRS/ RSI/ VeRa Radio Science File Naming Convention And Radio Science File Formats Issue: 12 Revision: 02 Date: 04.05.2006 Document: MEX-MRS-IGM-IS-3016 ROS-RSI-IGM-IS-3087 VEX-VRA-IGM-IS-3009 Prepared by ___________________________________________ Thomas Andert Approved by ___________________________________________ Martin P?tzold (MaRS Principal Investigator) Page left free ACRONYMS AAS Atmosphere Analysis Software AGC Automatic Gain Control AMMOS Advanced Multi-Mission Operations System ATDF Archival Tracking Data Files ADC Analog to Digital Converter BWG Beam Wave Guide ground station (DSN) CALI calibration file CHDO Compressed Header Data Object DDS Data Distribution System DSMS Deep Space Mission System DSN Deep Space Network ESA European Space Agency ESOC European Space Operations Centre G/S Ground Station HEF High Efficiancy ground station (DSN) IFMS Intermediate Frequency Modulation System JPL Jet Propulsion Labatory MEX Mars Express MGS Mars Global Surveyor NEA NEAR NNO New Norcia Station ( Perth ) ODF Orbit Data File ODR Original Data Record PDS Planetary Data System ROS Rosetta RSI Radio Science Investigation RSR Radio Science Receiver S/C Spacecraft SFDU Standard Formatted Data Unit TNF Tracking and Navigation File ULS Ulysses UniBw Universit?t der Bundeswehr UniBw 1 Introduction 1.1. Purpose of the document The Radio Science Investigations (RSI) experiment on board of ESA?s mission Rosetta, Mars Express and Venus Express will use the S/C radio system to perform their experiments. Data from the tracking ground stations will be collected and pre-processed at IGM Cologne. This Document describes the different kinds of data files, their formats and naming conventions, which will be generated during the operational phase of both missions Mars Express and Rosetta. 1.2. Document Overview Section 2 shows the data flow of the tracking and processed data files Section 3 defines v olume and dataset name conventions of the data media for data archiving and distribution to PDS Section 4 defines the general file naming convention of data files and label files of the different data archiving levels Section 5 defines the file name convention and the formats of the raw data files used by Rosetta RSI and MaRS of level 1a Section 6 defines the file name convention and the formats of the data files used by Rosetta RSI and MaRS up to level 2 Section 7 defines the formats and and file names of the descriptive files Section 8 defines the file names and formats of the predicted and reconstructed orbit files, both from UniBw and ESOC Section 9 defines the file names and formats of the calibration files from ESOC and DSN concerning ranging and media calibrations. Section 10 defines file names and formats of geometries Section 11 defines old and MaRS generated file names of files related to SPICE Section 12 is an Appendix 1.3. Referenced Documents The following documents are referenced in the MaRS FOM, and may be referred to if more information is needed. document Number Title Issue Number Date 1 GRST-TTC-GS-ICD-0518-TSOG IFMS-to-OCC interface 10.3.1 2 MEX-MRS-IGM-MA-3017 IFMS-Read-Program-Manual TBD TBD 3 ROS-RSI-IGM-MA-3113 MEX-MRS-IGM-MA-3026 RSR-Read-Program-Manual TBD TBD 4 820-013, 0159-Science Radio Science Receiver Standard Formatted Data Unit Draft 05.02.2001 5 deleted 6 deleted 7 820-013, TRK-2-34 Deep Space Mission System (DSMS) Tracking System Data Archival Format Rev B 15.12.2002 8 MEX-MRS-IGM-DS-3031 Solar Corona Analysis Software; Requirement Spec. Draft 20.06.2003 9 MEX-ESC-IF-5003 DDID Appendix H 1.3 01.03.2002 10 MEX-MRS-IGM-IS-3019 Rosetta/Mars Express/Venus Express Archive Generation, Validation and Transfer Plan 4.0 27.08.2003 11 ME-ESC-IF-5014 Configuration Control Document FTS Configuration A2 07.03.2003 12 820-013 TRK 2-18 ODF 13 Media Calibration etc. 14 PDS document Zender 15 SPICE documentation N0051 16 MEX-MRS-IGM-DS-3037 ODF Level 1a to Level 1b Software Design Specifications Draft 25.11.2003 17 JPL D-7669, Part 2 PDS Standards Reference 3.6 01.08.2003 2 Data Flow The raw tracking data files from DSN ground stations will be delivered through JPL and Stanford and processed at the IGM as shown in Figure 2.1. The raw tracking data files from the ESA ground stations will be delivered through ESOC and processed at the IGM as shown in Figure 2.2. Figure 2 - 1 : Data flow from the DSN stations. Figure 2-2: Data flow from ESAs NNO station. 3 MaRS, RSI and VeRa Volumes and Datasets Organizations, Formats and Name Specifications 3.1 Definitions and General Concept 3.1.1. Definitions 3.1.1.1.Data Product A labeled grouping of data resulting from a scientific observation. Examples of data products include spectrum tables, and time series tables. A data product is a component of a data set. 3.1.1.2. Data Set The accumulation of data products, secondary data, software, and documentation, that completely document and support the use of those data products. A data set is part of a data set collection. 3.1.1.3. Data Set Collection A data set collection consists of data sets that are related by observation type, discipline, target, or time, and therefore are treated as a unit, archived and distributed as a group (set) for a specific scientific objective and analysis. 3.1.1.4. Volume A physical unit used to store or distribute data products (e.g. a CD_ROM or DVD disk) which contain directories and files. The directories and files include documentation, software, calibration and geometry information as well as the actual science data. A volume is part of a volume set. 3.1.1.5. Volume Set A volume set consists of one or more data volumes containing a single data set or collection of related data sets. In certain cases, the volume set can consists of only one volume. 3.1.2. Data- and Volume Set Organization The general concept for the MaRS, RSI and VeRa Data- and Volume Set Design is shown in Figure 3.1-1. Figure 3 -1 : Data Set Collection, Data Sets and Data Products 3.2. Volume and Dataset Name Specification 3.2.1. Dataset 3.2.1.1. Dataset ID The Data Set ID is a unique alphanumeric identifier for the MaRS, VeRa and RSI data products. One data set corresponds to one physical data volume and both have the same four digit sequence number. See Table 3-1 for more information. XXX-Y-ZZZ-U-VVV-NNNN-WWW Acronym | Description | Example -------------------------------------------------------- XXX | Instrument Host ID | MEX, RO, VEX -------------------------------------------------------- Y | Target ID | M (Mars), V(Venus), | |C(Comet),L(Lutetia), | |S(Steins) -------------------------------------------------------- ZZZ | Instrument ID | MRS,RSI,VRA -------------------------------------------------------- U | Data level (here | 1/2/3 (Data set | CODMAC levels are used) | contains raw, edited | | and calibrated data) --------------------------------------------------------- VVV | MaRS mission phase |MCO | (deviate from the |(for values see above) | mission phases) | --------------------------------------------------------- NNNN | 4 digit sequence number | 0123 | which is identical to | | the number in Volume_id | --------------------------------------------------------- WWW | Version number | V1.0 Examples: MEX-M-MRS-1/2/3-PRM-1144-V1.0 ROS-C-RSI-1/2/3-MCO-0099-V2.0 VEX-V-VRA-1/2/3-MCO-0124-V1.0 (1) It should be noted that the MaRS mission phase names used in the data_set_id do not correspond to the mission phase names as defined from ESA for Mars Express. However, since the radio science team tries has to archive data for Mars Express as well as for Venus Express and Rosetta, it was granted the use of spacecraft-independent mission phase names which can be used for all three missions. For the mission_phases definition see below: Acronym Description Timespan For Mars Express MaRS mission name | abbreviation | time span ================================================================ Near Earth Verification | NEV | 2003-06-02 - 2003-07-31 ---------------------------------------------------------------- Cruise 1 | CR1 | 2003-08-01 - 2003-12-25 ---------------------------------------------------------------- Mission Comissioning | MCO | 2003-12-26 - 2004-06-30 ---------------------------------------------------------------- Prime Mission | PRM | 2004-07-01 - 2005-11-30 ---------------------------------------------------------------- Extended Mission | ENT | TBD ---------------------------------------------------------------- For Rosetta Rosetta mission name | abbreviation | time span ================================================================ Near Earth Verification | LEOP | 2004-03-02 - 2004-03-04 ---------------------------------------------------------------- Commissioning 1 | CO1 | 2004-03-05 - 2004-06-06 ---------------------------------------------------------------- Cruise 1 | CR1 | 2004-06-07 - 2004-09-05 ---------------------------------------------------------------- Commissioning 2 | CO2 | 2004-09-06 - 2004-10-16 ---------------------------------------------------------------- Cruise 2 | CR2 | 2005-04-05 - 2006-07-28 ---------------------------------------------------------------- Cruise 3 | CR3 | 2007-05-29 - 2007-09-12 ---------------------------------------------------------------- Cruise 4-1 | CR4-1 | 2007-12-14 - 2008-07-04 ---------------------------------------------------------------- Asteroid Flyby 1(Steins)| AS1 | 2008-07-05 - 2008-11-05 ---------------------------------------------------------------- Cruise 4-2 | CR4-2 | 2008-11-06 - 2009-09-12 ---------------------------------------------------------------- Cruise 5 | CR5 | 2009-12-14 - 2010-05-09 ---------------------------------------------------------------- AsteroidFlyby 2(Lutetia)| AS2 | 2010-05-10 - 2010-09-10 ---------------------------------------------------------------- Cruise 6 | CR6 | 2011-07-14 - 2014-01-22 ---------------------------------------------------------------- Mission Commissioning | MCO | tbd ---------------------------------------------------------------- Prime Mission | PRM | tbd ---------------------------------------------------------------- Extended Mission | ENT | tbd ---------------------------------------------------------------- For Venus Express VeRa mission name | abbreviation | time span ================================================================ Near Earth Verification | NEV | 2005-11-09 - tbd ---------------------------------------------------------------- Cruise 1 | CR1 | 2005-11 - 2006-03 ---------------------------------------------------------------- Arrival | ARR | 2006-04 ---------------------------------------------------------------- Mission Comissioning | MCO | 2006-04 - 2006-07 ---------------------------------------------------------------- Prime Mission | PRM | 2006-08-01 - 2007-10-30 ---------------------------------------------------------------- Extended Mission | ENT | TBD ---------------------------------------------------------------- Table 3-2 : mission phase description 3.2.1.2. Dataset Name The dataset name is the full name of the dataset already identifiable by a dataset id. Dataset names shall be at most 60 characters in length and must be in upper case. See Table 3- 3 for more information. Description |Example ==================================== Instrument Host Name |MARS EXPRESS |ROSETTA ORBITER |VENUS EXPRESS ------------------------------------ Target name | Mars | Venus | 67P (for Comet Churyumov-Gerasimenko) | Lutetia (tbc) | Steins (tbc) ------------------------------------ Instrument id | Mrs (tbc) | RSI (tbc) | VRA (tbc) ------------------------------------ MaRS mission phases |MISSION commissioning (can deviate from the|cruise 1 MEX official phase |prime mission names. See above) |extended mission --------------------------------------- A 4 digit sequence | 0123 number which is | identical to the | sequence number in | the corresponding | VOLUME_ID | ---------------------------------------- Version number | V1.0 Table 3 - 3 : Dataset name Examples: Mars Express MARS MRS MISSION Comissioning 0123 V1.0 Venus Express VENUS VRA Prime Mission 0099 V2.0 ROSETTA ORBITER 67P RSI CRUISE 1 1144 V3.0 3.2.2. Dataset Collection 3.2.2.1. Dataset Collection ID The data set collection ID element is a unique alphanumeric identifier for a collection of related data sets or data products. The data set collection is treated as a single unit, whose components are selected according to a specific scientific purpose. Components are related by observation type, discipline, target, time, or other classifications. See Table 3- 4 for more information. XXX_Y_ZZZ_U_VVV_IIIIIIIIII_TTT Acronym | Description | Example ===================================== XXX | Instrument HostID | MEX | ROS | VEX --------------------------------- Y | Target ID | M (Mars) | V (Venus) | C (Comet 67P/Churyumov-Gerasimenko) | L (asteroid Lutetia) | S (asteroid Steins) ----------------------------------- ZZZ | Instrument ID | MRS | RSI | VRA --------------------------------- U | Data Level | 1 (Raw Data of level 1a and 1b) | 2 (Calibrated Data) | 3-5 (Higher Level Data) | 1/2/3 (Data set contains raw, calibrated | and Higher Level DATA) ---------------------------------------------------- VVV | Data Description | | (Acronym) | MCO commissioning | CR1 cruise first part | PRM prime mission | ENT extended mission ---------------------------------------------------- IIIIIIIIII | Data Description | | (Detailed) | ROCC Occulation Profiles | | GRAV Gravity Data RANG Apocenter | Ranging BSR Bistatic Radar Spectra | PHOBOS Phobos Flyby | SUPCON superior solar conjunction | INFCON inferior solar conjunction | TTT Version Number V1.0 Table 3 - 4 : Dataset Collection ID Examples: MEX-M-MRS-5-PRM-ROCC-V1.0 ROS-C-RSI-5-MCO-GRAV-V2.0 VEX-V-VRA-5-MCO-BSR-V1.0 (1) In the keyword DATA_COLLECTION_ID the CODMAC-levels are used instead of PSA-level. In all other file names and documents we keep PSA-level. 3.2.3. Volume 3.2.3.1. Volume ID The Volume ID provides a unique identifier for a single MaRS, RSI or VeRa data volume, typically a physical CD-ROM or DVD. The volume ID is also called volume label by the various CD-ROM recording software packages. The Volume ID is formed using an instrument identifier of 3 characters, followed by an underscore character, followed by a 4 digit sequence number. XXXXXX_ZZZZ Acronym|Description |Example ========================================= XXXXXX |Mission and Instrument ID|MEXMRS |ROSRSI | VEXVRA ZZZZ |4 digit sequence number | 0001 Table 3 - 5 : Volume ID Examples: MEXMRS_0001 ROSRSI_0999 VEXVRA_0508 3.2.3.2. Volume Version ID There can be several version of the same volume, if for example the archiving software changed during the archiving process or errors occurred during the initial production. This is indicated by the Volume Version ID, a string, which consists of a V for Version followed by a sequence number indicating the revision number. VV.V Acronym Description Example VV.V Volume Version ID V1.0 Table 3- 6: Volume Version Id If a volume is redone because of errors in the initial production or because of a change in the archiving software during the archiving process, the volume ID remains the same, and the Volume Version ID will be incremented. 3.2.3.3. Volume Name The volume name (formatted according to Table 3- 6 ) contains the name of the physical data volume (typically a CD-ROM or DVD) already identifiable by its VOLUME ID. Both the VOLUME ID and the VOLUME NAM E are printed on the CD-ROM or DVD labe l (see Figure 3- 2 ). xxxxxx_zzzz_yyyy_ddd_vv.v Acronym| Description |Example ======================================== xxxxxx|Mission and Instrument ID|MEXMRS ROSRSI VEXVRA --------------------------------------- zzzz |4 digit sequence number |0001 --------------------------------------- yyyy |Year of the measurement |2004 ---------------------------------------- ddd |Day of year of the |180 | measurement ---------------------------------------- vv.v |Volume Version ID | V1.0 Table 3 - 7 : Volume name definition Examples: MEXMRS_0001_2003_180_V1.0 ROSRSI_0999_2016_355_V1.0 VEXVRA_0508_2008_190_V1.0 3.2.4. Volume Set A volume set consists of a number of volumes. 3.2.4.1. Volume Set ID The volume set ID identifies a data volume or a set of volumes. Volume sets are considered as a single orderable entity. Volume set ID shall be at most 60 characters in length, must be in upper case and separated by underscores. See Table 3- 7 for more information. XXX_YYYY_ZZZ_WWW_UVVV Acronym | Description | Example ======================================================== XXX | Abbreviation of the country of origin| GER | USA -------------------------------------------------------- YYYY |The government branch | UNIK | NASA -------------------------------------------------------- ZZZ | Discipline within branch | IGM -------------------------------------------------------- WWW | Mission and Instrument ID | MEXMRS | ROSRSI | VEXVRA ------------------------------------------------------- UVVV | A 4 digit sequence identifier | | The U digit is to be used to represent | the volume set | U = 0 commissioning / cruise | = 1 flybys | = 2 prime missions | = 3 extended missions the trailing V are wildcards that represent the range of volumes in the set 0099 Table 3 - 8 : Volume Set ID Examples (tbc): DE_UNIK_IGM_MEXMRS_0099 USA_NASA_JPL_MEXMRS_0098 3.2.4.2. Volume Set Name The Volume Set Name provides the full, formal name of a group of data volumes containing a data set or a collection of related data sets. Volume set names shall be at most 60 characters in length and must be in upper case. Volume sets are considered as a single orderable entity. In certain cases, the volume set name can be the same as the volume name, such as when the volume set consists of only one volume. Spacecraft | Example ============================================= Mars Express MEX: RADIO SCIENCE OCCULTATION MEX: RADIO SCIENCE GLOBAL GRAVITY MEX: RADIO SCIENCE TARGET GRAVITY MEX: RADIO SCIENCE SOLAR CORONA MEX: RADIO SCIENCE PHOBOS FLYBY MEX: RADIO SCIENCE BISTATIC RADAR ---------------------------------------------- Venus Express| tbd Rosetta | tbd Examples: MEX: RADIO SCIENCE OCCULTATION MEX: RADIO SCIENCE GLOBAL GRAVITY Both the VOLUME SET ID and the VOLUME SET NAM E are printed on the CD-ROM or DVD labe l. 3.2.5. Volume Series A volume series consists of one or more volume sets that represent data from one or more missions or campaigns. 3.2.5.1. Volume Series Name The volume_series_name element provides a full, formal name that describes a broad categorization of data products or data sets related to a planetary body or a research campaign. See Table 3- 8 for details. Spacecraft | Example Mars Express | MISSION TO MARS (tbc) Venus Express| MISSION TO VENUS (tbc) Rosetta | MISSION TO SMALL BODIES (tbc) Table 3 - 9 : Volume Series Name Examples: MISSION TO MARS (tbc) MISSION TO VENUS (tbc) MISSION TO SMALL BODIES (tbc) 4. General File Naming convention 4.1. File Name Format All incoming data files will be renamed and all processed data files will be named after the following file naming convention format. The original file name of the incoming tracking data files will be stored in the according label file as source_product_id. See Table 4-1 for more information. rggttttlll_sss_yydddhhmm_qq.eee 4.2. Data Files Data files are: The DSN and IFMS radio tracking files from Level 1a to level 2 The predicted and reconstructed Doppler and range files Geometry files All Level 1a binary data files will have the extension eee = DAT. Level 1a to level 2 tabulated ASCII data files will have the extension eee = TAB with the exception of IFMS level 1a files which will have the extension eee = RAW. 4.3.Descriptive Files Descriptive files contain information in order to support the processing and analysis of data files. The following file types are defined as descriptive files with extension eee = *.LBL PDS label files *.CFG IFMS configuration *.AUX Anxiliary files (event files, attitude files, ESOC orbit files, UniBw products, SPICE files) *.TXT Information (text) files Acronym | Description | Examples ============================================================= r | space craft name abbreviation | M | R = Rosetta | | M = Mars Express | | V = Venus Express | ------------------------------------------------------------- gg | Ground station ID: | 43 | | | 00: valid for all ground stations; | | various ground staions or independent | | of ground station or not feasible to | | appoint to a specific ground station or | | complex | | | | DSN complex Canberra: | | --------------------- | | 34 = 34 m BWG (beam waveguide) | | 40 = complex | | 43 = 70 m | | 45 = 34 m HEF (high efficiency) | | | | ESA Cebreros antenna: | | --------------------- | | TBD = 35 m | | | | DSN complex Goldstone: | | ---------------------- | | 14 = 70 m | | 15 = 34 m HEF | | 24 = 34 m BWG | | 25 = 34 m BWG | | 26 = 34 m BWG | | 27 = 34 m HSBWG | | | | ESA Kourou antenna: | | ------------------- | | TBD = 15 m | | | | DSN complex Madrid: | | ------------------- | | 54 = 34 m BWG | | 55 = 34 m BWG | | 63 = 70 m | | 65 = 34 m HEF | | | | ESA New Norcia antenna: | | ----------------------- | | 32 = 35 m | ------------------------------------------------------------- tttt | data source identifier: | TNF0 | | | Level 1a and 1b: | | ---------------- | | ODF0 = ODF closed loop | | TNF0 = TNF closed loop (L1a) | | T000-T017 = TNF closed loop (L1b) | | ICL1 = IFMS 1 closed loop | | ICL2 = IFMS 2 closed loop | | ICL3 = IFMS RS closed loop | | IOL3 = IFMS RS open loop | | R1Az = RSR block 1A open loop | | R1Bz = RSR block 1B open loop | | R2Az = RSR block 2A open loop | | R2Bz = RSR block 2B open loop | | R3Az = RSR block 3A open loop | | R3Bz = RSR block 3B open loop | | z=1...4 subchannel number | | ESOC = ancillary files from ESOC DDS | | DSN0 = ancillary files from DSN | | SUE0= ancillary and information files | | coming from Stanford University | | center for radar astronomy | | | | Level 2: | | ------- | | UNBW = predicted and reconstructed | | Doppler and range files | | ICL1 = IFMS 1 closed loop | | ICL2 = IFMS 2 closed-loop | | ICL3 = IFMS RS closed-loop | | ODF0 = DSN ODF closed loop file | | T000-T017 = TNF closed loop file | | RSR0 = DSN RSR open loop file | | RSRC = DSN RSR open loop file containing | | data with right circular | | polarization (only solar | | conjunction measurement) | | RSLC = DSN RSR open loop file containing | | data with left circular | | polarization (only solar | | conjunction measurement) | | NAIF = JPL or ESTEC SPICE Kernels | | SUE0 = ancillary, information and | | calibration files coming from | | Stanford University center for | | radar astronomy | | GEOM = geometry file | | | --------|------------------------------------------|-------- lll | Data archiving level | L1A | L1A = Level 1A | | L1B = Level 1B | | L02 = Level 2 | | L03 = Level 3 | --------|------------------------------------------|-------- sss | data type | | | | IFMS data files level 1A & 1B: | | ------------------------- | | D1X uncalibrated Doppler 1 X-Band | | D1S uncalibrated Doppler 1 S-Band | | D2X uncalibrated Doppler 2 x-Band | | D2S uncalibrated Doppler 2 S-Band | | C1X Doppler 1 X-Band equip. calibration | | C1S Doppler 1 S-Band equip. calibration | | C2X Doppler 2 X-Band equip. calibration | | C2S Doppler 2 S-Band equip. calibration | | RGX uncalibrated X-Band range | | RGS uncalibrated S-Band range | | MET meteo file | | AG1 AGC 1 files | | AG2 AGC 2 files | | RCX X-Band range equip. calibration | | RCS S-Band range equip. calibration | | | | DSN data files level 1A: | | ------------------------- | | ODF original orbit files (closed loop) | | RSR radio science receiver open-loop file| | TNF file (closed loop) | | BRO bistatic radar 4-panel plots (browse)| | | | DSN calibration files level 1A: | | ------------------------------- | | TRO DSN tropospheric calibration model | | MET DSN meteorological file | | ION DSN ionosheric calibration model | | BCL SUE Bistatic radar temperature | | calibration | | | ESOC ancillary data level 1A: | | ----------------------------- | | ATR attitude file, reconstrucetd | | EVT orbit event file | | OHC orbit file, heliocentric cruise | | OMO orbit file, marscentric, operational | | | | DSN ancillary data level 1A: | | ----------------------------- | | DKF DSN Keyword File | | MON DSN monitor data | | NMC DSN Network Monitor and Control file | | SOE DSN Sequence of Events | | EOP DSN earth orientation parameter file | | ENB SUE Experimenter Notebook | | MFT SUE Manifest files | | LIT DSN Light time file | | HEA DSN Data collection list | | OPT DSN Orbit propagation and timing | | geometry file | | | | DSN browse plots level 1a: | | -------------------------- | | BRO Radio Science quick look 4-panel | | plot set (browse plots) | | | | IFMS data files level 1b: | | ------------------------- | | D1X uncalibrated Doppler 1 X-band | | D1S uncalibrated Doppler 1 S-band | | D2X uncalibrated Doppler 2 X-band | | D2S uncalibrated Doppler 2 S-band | | C1X Doppler 1 X-band equip. calibration | | C1S Doppler 1 S-band equip. calibration | | C2X Doppler 2 X-band equip. calibration | | C2S Doppler 2 S-band equip. calibration | | RGX uncalibrated X-band range | | RGS uncalibrated S-band range | | MET meteo | | AG1 AGC 1 | | AG2 AGC 2 | | RCX X-band range equip. calibration | | RCS S-band range equip. calibration | | | | DSN ODF data files level 1b: | | ----------------------------- | | DPS S-band Doppler | | DPX X-band Doppler | | RGS uncalibrated S-Band ranging file | | RGX uncalibrated X-Band ranging file | | RMP uplink frequency ramp rate file | | | | DSN ancillary data level 1B: | | ----------------------------- | | MET meteorlogical file | | | | IFMS data level 2: | | ----------------- | | D1X uncalibrated Doppler 1 X-Band | | D1S uncalibrated Doppler 1 S-Band | | D2X uncalibrated Doppler 2 x-Band | | D2S uncalibrated Doppler 2 S-Band | | RGX uncalibrated X-Band range | | RGS uncalibrated S-Band range | | RCX X-Band range equip. calibration | | RCS S-Band range equip. calibration | | | | DSN level 2 data: | | ----------------- | | DPX calibrated Doppler X-band | | DPS calibrated Doppler S-band | | RGS calibrated S-band ranging file | | RGX calibrated X-band ranging file | | BSR bistatic radar power spectra | | SRG bistatic radar surface reflection | | geometry file | | | | DSN level 2 calibration data: | | ---------------------------- | | SRF Surface Reflection Filter Files | | | | orbit files level 2: | | -------------------- | | PTW Doppler & range prediction two-way | | PON Doppler & range prediction on | | RTW reconstructed Doppler & range orbit | | file two-way | | RON reconstructed Doppler & range orbit | | file one-way | | LOC heliocentric state vector file | | | | Constellation file Level 2: | | --------------------------- | | MAR Mars constellation file | | VEN Venus constellation file | | P67 Churyumov-Gerasimenko | | constellation file | | | | SPICE kernel files level 2: | | --------------------------- | | BSP binary spacecraft/location | | kernel file | | FRM frame kernel file | | ORB orbit numbering file | | PBC predicted attititude kernel file | | PCK planetary constant kernel | | SCK space craft clock kernel | | TLS leap second kernel file | | | | Science data level 3: | | --------------------- | | SCP solar corona science | --------|------------------------------------------|-------- yy | Year | 04 --------|------------------------------------------|-------- ddd | Day of year | 153 --------|------------------------------------------|-------- hhmm | Sample hour, minute start time | 1135 | For IFMS files this is the ESOC | | reference time tag which usually | | coincides with the first sample time. | | For IFMS Ranging files however this is | | not true. Here the reference time tag | | is twoway light time before the first | | actual measurement. | --------|------------------------------------------|-------- qq | Sequence or version number | 01 --------|------------------------------------------|-------- eee | .DAT binary files (Level 1a) | .RAW | .TAB ASCII table data file | | .AUX ancillary file | | .CFG IFMS configuration file (Level 1b) | | .LBL PDS label files | | .TXT information files | | .RAW ASCII data files (Level 1a) | | .LOG Processing log files (Level 2) | Table 4 - 1 : Data file naming convention 5. Raw Tracking data Files (Level 1a) All incoming data files will be renamed and all processed data files will be named after the file naming convention format defined in section 4.1 . The original file name of the incoming tracking data files will be stored in the according label file as original_product_id. 5.1. Deep Space Network tracking data 5.1.1. File names of incoming level 1a DSN raw data files The file names of the incoming Deep Space Network (DSN) tracking data files level 1a are not specified: Abbreviation description ODF Closed-loop ODF level 1a file TNF Closed-loop Tracking Navigation File (TNF) Level 1a RSR Open-loop RSR level 1a file 5.1.2. File formats of incoming Level 1a DSN raw data files 5.1.2.1. ODF Level 1a The structure of binary ODF is described in the NASA document 820-13, Rev B; TRK-2-18 ODF Orbit data File and in the IGM documents MEX-MRS-IGM-DS-3037 DSN ODF (Orbit Data File) Processing Software: Level 1a to Level 1b Software Design Specifications 5.1.2.2. RSR Level 1a The RSR is a computer controlled open loop receiver that digitally records a spacecraft signal through the use of an analog to digital converter (ADC) and up to four digital filter sub-channels. The digital samples from each sub-channel are stored to disk at regular intervals in real time. In near real time the records are partitioned and formatted into a sequence of RSR SFDUs which are transmitted to JPLs Advanced Multi-Mission Operations System (AMMOS ). Included in each RSR SFDU is the ancillary data necessary to reconstruct the signal represented by the recorded data samples in that SFDU. The structure of RSRs is described in the NASA document 820-13, 0159 -Science Radio Science Receiver Standard Formatted Data Unit (SFDU) And in the IGM documents ROS-RSI-IGM-MA-3113-RSR-Read-Program-Manual MEX-MRS-IGM-MA-3026 RSR-Read-Program-Manual The physical layout of the RSR SFDU is divided into five sections: the SFDU label, the header aggregation CHDO label, the primary header CHDO, the secondary header CHDO, and the data CHDO. The primary header CHDO and the secondary header CHDO together constitute the value field of the header aggregation CHDO; the header aggregation CHDO and the data CHDO together constitute the value field of the RSR SFDU. The length of the RSR SFDU (in 8-bit bytes) is designated as N in this module. In general, the length of all items in the RSR SFDU are fixed, except for the data CHDO. The length of the data CHDO is variable and is determined by the sample rate and sample size of the recorded data. The length of the data CHDO is designated as M in this module. In any case, the total length of the RSR SFDU is easily ascertained from the length attribute in the SFDU label (total SFDU length N = SFDU length attribute + 20). 5.1.2.3. Incoming calibration files from the DSN 5.1.2.3.1. DSN meteorological calibration file The file name and format of the DSN meteo calibration file is described in section 9.2.1 5.1.2.3.2. DSN tropospheric cali bration model file The DSN tropospheric calibration file describes a model of the Earth troposphere at the antenna site. The file name and format is described in section 9.2.3 5.1.2.3.3. DSN ionospheric calibration model file The DSN tropospheric calibration file describes a model of the Earth ionosphere at the antenna site. The file name and format is described in section 9.2.4 5.1.2.4. Incoming ancillary files from the DSN 5.1.2.4.1. DSN monitor files The file name and format of the DSN monitor file is described in section 7.5. 5.1.2.4.2. DSN Network Mo nitoring Control files The file name and format of the DSN Network Monitoring Control file is described in section 7.6. 5.1.2.4.3. DSN Sequence of Events file The file name and format of the DSN Sequence of Events file is described in section 7.7. 5.1.2.4.4. SPICE kernels The file name and formats of the SPICE kernel files is described in section 11. 5.1.2.5. RSR Level 1a Browse Data Plots In order to check data quality of RSR Level 1a open-loop data, Stanford University is producing a 4-panel plot. These plots are in the tbd file format. The source identifier tttt is set according to the relevant RSR receiver channel and subchannel (see Tabel 4.1), the data level lll=L1A and the data type identifier is sss=BRO for browse data. rggttttL1A_BRO_yydddhhmm_00.AUX 5.2. ESA ? New Norcia Station (Level 1a) 5.2.1. File names of incoming Level 1a IFMS files 5.2.1.1. IFMS Level 1a incoming raw data file s 5.2.1.1.1. IFMS raw data file name format The nominal length of a filename of the IFMS is 31 characters, and increases only in the case that more than 9999 sequence IDs are needed, or in the case of raw (uncorrected) ranging data (more information in the referenced document IFMS-to-OCC). In that case, the IFMS expands the sequence IDs length, or add a filename extension, as needed. Level 1a files will be renamed according to the file name format defined in section 4.1 . gggg_ssss_ddd_ii_tt_hhmmss_kkkk Acronym | Description |Example =========================================== gggg | Ground station ID | NN11 = IFMS-1 | NN = New Norcia | NN12 = IFMS-2 | | NN13 = IFMS-3 ------------------------------------------- ssss | Spacecraft ID | MEX1 = Mars Express | | ROSE = Rosetta MEX1 | | ddd Day of year 108 ------------------------------------------------ ii | Data kind identifier| OP = operational | | TS = test | CL = calibration (range) | RO = radio science (old) OP | tt Type of Data | D1 = Doppler 1 | D2 = Doppler 2 | ME = Meteo | RG = Ranging | G1 = AGC 1 | G2 = AGC 2 ----------------------------------------------------- hhmmss | hh = hours | 145513 mm = minutes ss = seconds ----------------------------------------------------- kkkk |Data-set sequence | 0001 |identification Table 5 - 1 : File name convention for Raw IFMS-files 5.2.1.1.2. IFMS raw data file format The structure of the IFMS tracking data files are described in the ESA document GRST-TTC-GS-ICD-0518-TOSG Issue/Revision No: 9.3.1 IFMS-to-OCC Interface Control Document 5.2.1.1.3. Level 1a file name format Since the IFMS raw data file names are not PDS compliant, a new file name is created and is formatted according to section 4.1 with the data archiving level set to lll = L1a. It replaces the original file name which is stored in the accompanying PDS label file. The extension is set to eee = TAB (see also 6.2.1.3.1 ). The file content remains unchanged. 5.2.1.2. Incoming ancillary files from ESOC DDS 5.2.1.2.1. ESOC DDS file name convention 5.2.1.2.1.1. Conventions The following conventions have been adopted in the rest of this document: RMx is used where a file can be sent to either RMA or RMB MMx is used where a file can be sent to either MMA or MMB FDx is used where a file can be sent to either FDL or FDR The incoming ESOC ancillary data file names follow the following format : ffff_sssddd_Dwxyymmddhhmmss_vvvvv.eee Placeholder description ======================= ffff | File type identifier | ORHM = orbit file heliocentric Mars Express | ORMM = orbit file marscentric Mars Express | ORMF = orbit file marscentric frozen orbit | ORHR = orbit file heliocentric Rosetta | | ATNM = attitude file nominal Mars Express | ATNR = attitude file nominal Rosetta | | EVTM = event file Mars Express | EVTF = event file frozen orbit (Mars Express) | | VILM = visibility file Lander Mars Express | | OASW = orbit and attitude data access software ------------------------------------------------------ sss | Data source identifier | FDx = ESOC Flight Dynamics | PST = ESTEC Project Science Team Mars Express (for SPICE files) ---------------------------------------------- ddd | Data destination identifier | MMx = Mars Express Mission System (DDS) | PIX = PI Teams (for SPICE files from PST) | D Data file | w format identifier | B = binary data | A = ASCII data ------------------------------------------------------ x | Data type identifier | _ = (underscore) orbit data | P = predicted attitude data | R = reconstructed attitude data ------------------------------------------------------- yymmddhhmmss|Start time of data in file | Except for orbit files where the time stamp is replaced by | Twelve (12) underscores ------------------------------ vvvvv | Version number ----------------------------- eee | Extension for example MEX = Mars Express 5.2.1.2.2. S/C attitude file, reconstructed The reconstructed spacecraft attitude file for a specified time interval is described in section 7.3. 5.2.1.2.3. Orbit event file The orbit event file contains tbd . The highest version number represents the most recent issue of that file. The file name and file format is described in section 7.4. 5.2.1.2.4. S/C orbit file during cruise, heliocentric The spacecraft cruise orbit file is described in section 8.4 5.2.1.2.5. S/C orbit file during mission, Marscentric The spacecraft Marscentric orbit file is described in section 8.5 5.2.1.2.6. SPICE kernels The file name and formats of the SPICE kernel files is described in section 11. 6. Processed tracking data (Level 1b and 2) 6.1. Deep Space Network 6.1.1. Closed-loop ODF Level 1b products 6.1.1.1. Specifications Document The processing of ODF Level 1a to Level 1b products is specified in the IGM documents MEX-MRS-IGM-DS-3037 DSN ODF (Orbit Data File) Processing Software: Level 1a to Level 1b Software Design Specifications 6.1.1.2. Input file The input files for the processing software are: The ODF level 1a file 6.1.1.2.1. ODF level 1a file The original ODF files have file names and formats according to section 5.1.1 and 5.1.2. 6.1.1.3. Output Level 1b products 6.1.1.3.1. File name formats A new file name is created and is formatted according to section 4.1 with the data archiving level set to lll = L1A. It replaces the original file name which is stored in the accompanying label file. The extension is set to eee = TAB. A DSN ODF file contains usually data covering several days and from different ground stations. Therefore, a general apointement to a specific ground station cannot be done and gg=00. The processed data file names of level 1b are formatted according section 4.1 with the archiving level set to lll = L1b and eee = TAB. The sequence number qq is not used for all DSN file types of level 1a and level 1b and is set qq = 00. For the Doppler data sss = DPS or DPX For the range data sss = RNS or RNX For the uplink frequency ramp rate data sss = RMP For the modified meteorological file sss = MET New level 1a file name: r00ODF0L1A_sss_yydddhhmm_00.DAT Level 1b file name: r00ODF0L1B_sss_yydddhhmm_00.TAB 6.1.1.3.2. Data file formats for Level 1b ODF files 6.1.1.3.2.1. File format of S-band Doppler Table 6-1 File format of S-band Level 1b Doppler file Column | Description | Unit | Resolution ------------------------------------------------------------ 1 | Sample number | | ------------------------------------------------------------ 2 | Time in ISO format | | ------------------------------------------------------------ 3 | Time in fractions of day of year| Day | 10E-10 ------------------------------------------------------------ 4 | Ephemeris time since 01.01.2000 |second| mikrosec ------------------------------------------------------------ 5 | Spacecraft id | | ------------------------------------------------------------ 6 | DSN station ID | | ------------------------------------------------------------ 7 | 1=One-way 2=two-way | | ------------------------------------------------------------ 8 | Uplink frequency flag | | | 0 = one-way | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 9 | Downlink frequency flag | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 10 | Data validity indicator | | | 0 = data invalid | | | 1 = data valid | | ------------------------------------------------------------ 11 |Observed S-band Doppler | Hertz| mHz 6.1.1.3.2.2. File format of X-band Doppler Table 6 - 2 File format of Level 1b X-band Doppler Column | Description | Unit | Resolution ------------------------------------------------------------ 1 | Sample number | | ------------------------------------------------------------ 2 | Time in ISO format | | ------------------------------------------------------------ 3 | Time in fractions of day of year| Day | 10E-10 ------------------------------------------------------------ 4 | Ephemeris time since 01.01.2000 |second| mikrosec ------------------------------------------------------------ 5 | Spacecraft id | | ------------------------------------------------------------ 6 | DSN station ID | | ------------------------------------------------------------ 7 | 1=One-way 2=two-way | | ------------------------------------------------------------ 8 | Uplink frequency flag | | | 0 = one-way | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 9 | Downlink frequency flag | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 10 | Data validity indicator | | | 0 = data invalid | | | 1 = data valid | | ------------------------------------------------------------ 11 |Observed X-band Doppler | Hertz| mHz 6.1.1.3.2.3.File format of S-band ranging Table 6-3 File format of Level 1b S-band ranging Column | Description | Unit | Resolution ------------------------------------------------------------ 1 | Sample number | | ------------------------------------------------------------ 2 | Time in ISO format | | ------------------------------------------------------------ 3 | Time in fractions of day of year| Day | 10E-10 ------------------------------------------------------------ 4 | Ephemeris time since 01.01.2000 |second| mikrosec ------------------------------------------------------------ 5 | Spacecraft id | | ------------------------------------------------------------ 6 | DSN station ID | | ------------------------------------------------------------ 7 | 1=One-way 2=two-way | | ------------------------------------------------------------ 8 | Uplink frequency flag | | | 0 = one-way | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 9 | Downlink frequency flag | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 10 | Data validity indicator | | | 0 = data invalid | | | 1 = data valid | | ------------------------------------------------------------ 11 | Data type (item 10) | | ------------------------------------------------------------ 12 | Observed S-Band range |range | | |units or| | |nsec | ------------------------------------------------------------ 13 | Item 18 + item 19 | | ------------------------------------------------------------ 14 | Item 20 | | ------------------------------------------------------------ 15 | Item 21 | | ------------------------------------------------------------ 16 | Item 22 | | 6.1.1.3.2.4. File format of X-band ranging Table 6 - 4 File format of level 1b X-band ranging Column | Description | Unit | Resolution ------------------------------------------------------------ 1 | Sample number | | ------------------------------------------------------------ 2 | Time in ISO format | | ------------------------------------------------------------ 3 | Time in fractions of day of year| Day | 10E-10 ------------------------------------------------------------ 4 | Ephemeris time since 01.01.2000 |second| mikrosec ------------------------------------------------------------ 5 | Spacecraft id | | ------------------------------------------------------------ 6 | DSN station ID | | ------------------------------------------------------------ 7 | 1=One-way 2=two-way | | ------------------------------------------------------------ 8 | Uplink frequency flag | | | 0 = one-way | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 9 | Downlink frequency flag | | | 1 = S-band | | | 2 = X-band | | | 3 = Ka-band | | ------------------------------------------------------------ 10 | Data validity indicator | | | 0 = data invalid | | | 1 = data valid | | ------------------------------------------------------------ 11 | Data type (item 10) | | ------------------------------------------------------------ 12 | Observed S-Band range |range | | |units or| | |nsec | ------------------------------------------------------------ 13 | Item 18 + item 19 | | ------------------------------------------------------------ 14 | Item 20 | | ------------------------------------------------------------ 15 | Item 21 | | ------------------------------------------------------------ 16 | Item 22 | | 6.1.1.3.2.5. File format of the uplink ramp rate file Table 6 -5 : File format of uplink ramp rate file Column Description Unit Resolution 1 Sample number 2 Ramp start time Time in ISO format 3 Ramp start time Time in fractions of day of year 4 Ramp start time Ephemeris time since 01.01.2000 second 5 Ramp stop time Time in ISO format 6 Ramp stop time Time in fractions of day of year Day 10 -9 7 Ramp stop time Ephemeris time since 01.01.2000 second m sec 8 DSN Station ID 9 Ramp Rate Hertz/s 10 -6 Hz/s 10 Ramp Start Frequency Hertz 10 -6 Hz 6.1.2. Closed-loop ODF Level 2 products 6.1.2.1. Specifications document The processing of the ODF Level 1b to Level 2 data is specified in the IGM document MEX-MRS-IGM-DS-3038 DSN ODF (Orbit Data File) Calibration Software: Level 1b to Level 2 Software Design Specifications 6.1.2.2. Input file The input files are: The ODF level 1b files The Doppler and range prediction file (PTW or PON) Or The Orbit reconstructed file (RTW or RON) Media calibration files 6.1.2.2.1. The orbit prediction file PTW or PON The content and format of the predict file is described in section 8. 6.1.2.2.2. The orbit reconstructed file RTW or RON The content and format of the reconstructed orbit file is described in section 8. 6.1.2.3. ODF Level 2 products 6.1.2.3.1. ODF file name formats Level 2 The file names of the ODF output level 2 files are formatted according to section 4.1 with the archiving level identifier set to lll = L02 and the file type set to sss = DPX or DPS for X-band or S-band Doppler, respectively, or sss = RGX or RGS for calibrated X-band or S-band ranging files, respectively. The data source identifier is ttt = ODF0 rggODF0L02_sss_yydddhhmm_00.TAB 6.1.2.3.2. ODF file formats Level 2 6.1.2.3.2.1. Calibrated Doppler files DPX and DPS The calibrated Doppler files contain observed IFMS Doppler expressed as X-band Doppler or S-band Doppler, residual and detrended X-band or S-band Doppler (computed using the predict file), the detrended differential Doppler. If only one single frequency was used, the differential Doppler will be set to zero. The formats are shown in Table 6- 6 and Table 6- 7 . column description unit resolution 1 Sample number ----------------------------------------------------------- 2 Ground received time as UTC in ISO format ----------------------------------------------------------- 3 Ground received time as UTC in fractions of day of year starting with the first day of the year the data was recorded at 00:00.000 day 10E-10 day ----------------------------------------------------------- 4 Ground received time as elapsed terrestrial barycentric dynamic time (TDB) time since noon of the first calendar day of year 2000 ( 12:00 1 January 2000 TDB) ----------------------------------------------------------- 5 Distance Propagation experiments: approximate value of the closest approach of a downlink geometric ray path to the center of the reference body (Sun, planet, minor object). When two-way, the value is approximate average of uplink and downlink rays Gravity observations: geometric distance of the s/c from the center of mass of referenced body kilometer ----------------------------------------------------------- 6 Transmit frequency ramp reference time UTC in ISO format The time (t0) at which the transmitted frequency would have been using the coefficients f 0 (column 7) and df (column 8). At any time within the interval when those coefficients are valid, the transmitted frequency f_t may be calculated from f_t =f_0 + df x (t-t_0) For DSN two-way measurements: f_t is the uplink frequency of the ground transmitter; the f_t photon will reach the receiver one RTLT later. For DSN one-way measurements : f_t is the downlink frequency of the spacecraft transmitter; the f_t photon will reach the receiver OWLT later. In both cases, f_0 and df may change; but f_t is always continuous, and changes in the coefficients occur only on integer seconds. For IFMS measurements: f_t = f_0 because df=0. ----------------------------------------------------------- 7 Transmit frequency corresponding to time in column 6 Two-way coherent modes: Uplink frequency of ground station S-band order of 2100 MHZ X-band order of 7100 MHz One-way mode: S/C transmission frequency X-band order of 8400 MHz S-band order of 2300 MHzHertz 10E-6 Hz ----------------------------------------------------------- 8 Uplink frequency ramp rate DSN two-way coherent: Time derivative of uplink frequency in column 7 DSN one-way downlink mode: Value of spacecraft frequency drift, if known and/or meaningful; -99999.999999 IFMS measurements: Ramp rate is always zero; df=0 Hertz/sec 10 -6 Hz/sec ----------------------------------------------------------- 9 Observed X-band antenna frequency Frequency of the signal at the terminals of the receiving antenna structure at UTC TIME columns 2 to 4 (t_r). Set to -9999999999.999999 for missing or corrupted data. Hertz 10 -6 Hz ----------------------------------------------------------- 10 Predicted X-band antenna frequency Based on the ESOC reconstructed orbit file or SPICE kernels Expected frequency of the signal at the terminals of the receiving antenna structure at UTC TIME in columns 2 to 4 (t r). The calculation includes geometrical effects (relative positions and motions of ground station and spacecraft, including Earth rotation and light time adjustments), tuning of both the transmitter and receiver and a model-based correction for one-or two-way (as appropriate) propagation through the Earth's atmosphere.Hertz 10 -6 Hz ----------------------------------------------------------- 11 Correction of Earth atmosphere propagation Correction term for the propagation of the signal in the Earth atmosphere, based on meteorological data observed at the ground station site (MET-files) Hertz 10 -6 Hz ----------------------------------------------------------- 12 Residual calibrated X-band frequency shift column 9 minus 10 Hertz 10 -6 Hz ----------------------------------------------------------- 13 Received signal level Closed-loop data: Signal level from AGC in decibels relative to one milliwatt (dBm). Open-loop (RSR): Signal level in decibels (dB) relative to an arbitrary reference. ----------------------------------------------------------- 14 Differential Doppler Where f_S and f_X are the received S-band and X-band frequencies If BAND_NAME = X (from the label file), f_X comes from column 9 in this table and f_S comes from column 9 in the file identified by SOURCE_ID (from the label file). If BAND_NAME = S (from the label file), f S comes from column 9 in this table and f X comes from column 9 in the file identified by SOURCE_ID (from the label file). if either band is not available, this column is set -99999.999 ----------------------------------------------------------- 15 standard deviation of the observed antenna frequency X-band in column 9 (open-loop only) for closed-loop this value is set -99999.999 Hertz ----------------------------------------------------------- 16 Received X-band signal quality (open-loop only) Ratio of observed received signal strength to the statistical standard deviation of the measurement, column 15 devided by column 19. For closed-loop this is value is set -999.9 ----------------------------------------------------------- 17 standard deviation of received signal level at X-band (open-loop) A statistical measure of the error in determining SIGNAL LEVEL (column 15) based on fit of a data spectrum to a sinc function. Uses the same arbitrary scale factor as column 15; units of dB. for closed-loop this is set -999.9 dB 0.1 dB Table 6 - 6 : : format of the level 2 X-band Doppler file. column description unit resolution 1 Sample number ----------------------------------------------------------- 2 Ground received time as UTC in ISO format ----------------------------------------------------------- 3 Ground received time as UTC in fractions of day of year starting with the first day of the year the data was recorded at 00:00.000 day ----------------------------------------------------------- 4 Ground received time as elapsed terrestrial barycentric dynamic time (TDB) time since noon of the first calendar day of year 2000 ( 12:00 1 January 2000 TDB) ----------------------------------------------------------- 5 Distance Propagation experiments: approximate value of the closest approach of a downlink geometric ray path to the center of the reference body (Sun, planet, minor object). When two-way, the value is approximate average of uplink and downlink rays Gravity observations: geometric distance of the s/c from the center of mass of referenced body kilometer 10E -3 m ----------------------------------------------------------- 6 Transmit frequency ramp reference time UTC in ISO format The time (t0) at which the transmitted frequency would have been f_0 using the coefficients f_0 (column 7) and df (column 8). At any time t within the interval when those coefficients are valid, the transmitted frequency f_t may be calculated from f_t = f_0 +dt x (t-t_0) For DSN two-way measurements: f_t is the uplink frequency of the ground transmitter; the f_t photon will reach the receiver one RTLT later. For DSN one-way measurements : f_t is the downlink frequency of the spacecraft transmitter; the f_t photon will reach the receiver OWLT later. In both cases, f 0 and df may change; but f_t is always continuous, and changes in the coefficients occur only on integer seconds. For IFMS measurements: f_t = f_0 because df=0. ----------------------------------------------------------- 7 Transmitted frequency corresponding to time in column 6 Two-way coherent modes: Uplink frequency of ground station S-band order of 2100 MHZ X-band order of 7100 MHz One-way mode: S/C transmission frequency X-band order of 8400 MHz S-band order of 2300 MHzHertz 10E-6 Hz ----------------------------------------------------------- 8 Uplink frequency ramp rate DSN two-way coherent: Time derivative of uplink frequency in column 7 DSN one-way downlink mode: Value of spacecraft frequency drift, if known and/or meaningful; -99999.999999 IFMS measurements: Ramp rate is always zero; df=0 Hertz/sec 10E-6 Hz/sec ----------------------------------------------------------- 9 Observed S-band antenna frequency Frequency of the signal at the terminals of the receiving antenna structure at UTC TIME columns 2 to 4 (t_r). Set to -9999999999.999999 for missing or corrupted data. Hertz 10E-6 Hz ----------------------------------------------------------- 10 Predicted S-band antenna frequency Based on the ESOC reconstructed orbit file or SPICE kernels Expected frequency of the signal at the terminals of the receiving antenna structure at UTC TIME in columns 2 to 4 (t r). The calculation includes geometrical effects (relative positions and motions of ground station and spacecraft, including Earth rotation and light time adjustments), tuning of both the transmitter and receiver and a model-based correction for one- or two-way (as appropriate) propagation through the Earth's atmosphere. ----------------------------------------------------------- 11 Correction of Earth atmosphere propagation Correction term for the propagation of the signal in the Earth atmosphere and ionosphere, based on meteorological data observed at the ground station site (MET-files) Hertz 10E-6 Hz ----------------------------------------------------------- 12 Residual calibrated X-band frequency shift column 9 minus 10 Hertz 10E-6 Hz ----------------------------------------------------------- 13 Received S-band signal level Closed-loop data: Signal level from AGC in decibels relative to one milliwatt (dBm). Open-loop (RSR): Signal level in decibels (dB) relative to an arbitrary reference. dBm / dB 0.1 dB ----------------------------------------------------------- 14 Differential Doppler f_s = 3/11 f_x Where f_s and f_x are the received S-band and X-band frequencies If BAND_NAME = X (from the label file), f_x comes from column 9 in this table and f S comes from column 9 in the file identified by SOURCE_ID (from the label file). If BAND_NAME = S (from the label file), f S comes from column 9 in? this table and f X comes from column 9 in the file identified by SOURCE_ID (from the label file). If either band is not available, this column is set -99999.999 Hertz ----------------------------------------------------------- 15 standard deviation of the observed antenna frequency S-band in column 9 (open-loop only) for closed-loop this value is set -99999.999 Hertz 10 -6 Hz ----------------------------------------------------------- 16 Received S-band signal quality (open-loop only) Ratio of observed received signal strength to the statistical standard deviation of the measurement, column 15 devided by column 19 For closed-loop this is value is set -999.9 dB 0.1 dB ----------------------------------------------------------- 17 standard deviation of received signal level at S-band (open-loop) A statistical measure of the error in determining SIGNAL LEVEL (column 15) based on fit of a data spectrum to a sinc function. Uses the same arbitrary scale factor as column 15; units of dB. for closed-loop this is set -999.9 dB 0.1 dB Table 6 - 7 : format of the level 2 S-band Doppler file. 6.1.2.3.2.2.Calibrated ranging files RGX and RGS The level 2 ranging file contains the observed TWLT at X-band or S-band, the calibrated TWLT at X-band or S-band, the TWLT delay at X-band or S-band and the differential TWLT. If only one frequency was used, the differential TWLT is set to -99999.9. Column | Description | Unit | Resolution --------------------------------------------------------- 1 | Sample number | | ----------------------------------------------------------- 2 | Ground received time | | | as UTC in ISO format | | ----------------------------------------------------------- 3 | Ground received time as UTC in | | | fractions of day of year | | | starting with the first day of | | | the year the data was recorded | | | at 00:00.000 | day | 10E-10 ----------------------------------------------------------- 4 | Ground received time as elapsed | | | terrestrial barycentric dynamic | | | time (TDB) time since noon of | | | the first calendar day of year | | | 2000 ( 12:00 1 January 2000 TDB)|second| 10E-6 ----------------------------------------------------------- 5 | Distance | | | Propagation experiments: | | | approximate value of the closest| | | approach of a downlink geometric| | | ray path to the center of the | | | reference body (Sun, planet, | | | minor object). When two-way, the| | | value is approximate average of | | | uplink and downlink rays | | | Gravity observations: | | | geometric distance of the s/c | | | from the center of mass of | | | referenced body |km | 10E-3 m ----------------------------------------------------------- 6 |Observed TWLT X-band |second|0.1 nsec ----------------------------------------------------------- 7 | calibrated TWLT X-band | | | corrected for the propagation in| | | the Earth atmosphere, | | | ionospshere and interplanetary | | | plasma propagation |second| 0.1 nsec ----------------------------------------------------------- 8 | TWLT delay X-band | | | Signal Round-Trip delay, modulo | | | the maximum code ambiguity |second| 0.1 nsec ----------------------------------------------------------- 9 | Differential TWLT | | | Computed from the S-band and | | | X-band calibrated range in | | | column 6: t_s -t_x | | | If neither S-band or X-band is | | | available the value is set to | | | -99999.9 |second| 0.1 nsec ----------------------------------------------------------- 10 | X-band Range Calibration G/S | | | Equipment Delay |second| nsec ----------------------------------------------------------- 11 | X-band Range predict |second| nsec ----------------------------------------------------------- 12 | X-band Range residual |second| nsec ----------------------------------------------------------- 13 | X-band AGC Carrier level | DBM | 0.1 DBM Table 6 - 8 : format of the level 2 X-band calibrated ranging file Column | Description | Unit | Resolution --------------------------------------------------------- 1 | Sample number | | ----------------------------------------------------------- 2 | Ground received time | | | as UTC in ISO format | | ----------------------------------------------------------- 3 | Ground received time as UTC in | | | fractions of day of year | | | starting with the first day of | | | the year the data was recorded | | | at 00:00.000 | day | 10E-10 ----------------------------------------------------------- 4 | Ground received time as elapsed | | | terrestrial barycentric dynamic | | | time (TDB) time since noon of | | | the first calendar day of year | | | 2000 ( 12:00 1 January 2000 TDB)|second| 10E-6 ----------------------------------------------------------- 5 | Distance | | | Propagation experiments: | | | approximate value of the closest| | | approach of a downlink geometric| | | ray path to the center of the | | | reference body (Sun, planet, | | | minor object). When two-way, the| | | value is approximate average of | | | uplink and downlink rays | | | Gravity observations: | | | geometric distance of the s/c | | | from the center of mass of | | | referenced body |km | 10E-3 m ----------------------------------------------------------- 6 |Observed TWLT S-band |second|0.1 nsec ----------------------------------------------------------- 7 | calibrated TWLT S-band | | | corrected for the propagation in| | | the Earth atmosphere, | | | ionospshere and interplanetary | | | plasma propagation |second| 0.1 nsec ----------------------------------------------------------- 8 | TWLT delay S-band | | | Signal Round-Trip delay, modulo | | | the maximum code ambiguity |second| 0.1 nsec ----------------------------------------------------------- 9 | Differential TWLT | | | Computed from the S-band and | | | X-band calibrated range in | | | column 6: t_s -t_x | | | If neither S-band or X-band is | | | available the value is set to | | | -99999.9 |second| 0.1 nsec ----------------------------------------------------------- 10 | S-band Range Calibration G/S | | | Equipment Delay |second| nsec ----------------------------------------------------------- 11 | S-band Range predict |second| nsec ----------------------------------------------------------- 12 | S-band Range residual |second| nsec ----------------------------------------------------------- 13 | S-band AGC Carrier level | DBM | 0.1 DBM Table 6 - 9 : format of the level 2 S-band calibrated ranging file 6.1.3. Open-loop RSR Level 2 6.1.3.1. Specification Document tbd 6.1.3.2.Open-loop RSR Level 2 products 6.1.3.2.1. Open-loop Doppler file products Level 2 6.1.3.2.1.1. Open-loop Doppler File name format The file names of the Doppler RSR level 2 products are formatted according to section 4.1 with the archiving level identifier set to lll = L02 and the file type set to sss = DPS or DPX . The data source identifier is tttt = RSR0 for Occulation measurements and tttt = RSRC or tttt = RSLC for right circular polarized or left circular polarized solar conjunction measurements. for occultation measurments rggRSR0L02_sss_yydddhhmm_00.TAB for solar conjunction measurements: rggRSRCL02_sss_yydddhhmm_00.TAB and rggRSLCL02_sss_yydddhhmm_00.TAB 6.1.3.2.1.2. Open-loop Doppler File formats See Table 6- 6 and Table 6- 7 . 6.1.3.2.2. Bistatic Radar products 6.1.3.2.2.1. File name format The file names of the bistatic radar RSR level 2 products are formatted according to section 4.1 with the archiving level identifier set to lll = L02 and the file type set to sss = BSR or SRG, for the power spectra and the surface reflection geometry file, respectively . The data source identifier is tttt = RSR0. Bistatic Radar power spectra: rggRSR0L02_BSR_yydddhhmm_00.TAB The associated surface reflection geometry file: rggRSR0L02_SRG_yydddhhmm_00.TAB 6.1.3.2.2.2. Bistatic Radar products level 2: Power Spectra The BSR spectra contain as a function of spectral frequency the power of the right-handed circular polarized (RCP) and the left-handed circular polarized (LCP) signals at X-band and S-band, and the real and imaginary components of the RCP and LCP cross spectra again at both frequency bands. If the polarization information for a frequency band is not available, then the respective columns contain zeros. Column Description Unit Resolution ----------------------------------------------------------- 1 Spectrum number ----------------------------------------------------------- 2 Center time of spectrum spm microseconds ----------------------------------------------------------- 3 Number of sample in spectrum ----------------------------------------------------------- 4 Spectral frequency Hz ----------------------------------------------------------- 5 X-band RCP power W ----------------------------------------------------------- 6 X-band LCP power W ----------------------------------------------------------- 7 S-band RCP power W ----------------------------------------------------------- 8 S-band LCP power W ----------------------------------------------------------- 9 X-band RCP/LCP cross spectral power real component W ----------------------------------------------------------- 10 X-band RCP/LCP cross spectral power imaginary component W ----------------------------------------------------------- 11 S-band RCP/LCP cross spectral power real component W ----------------------------------------------------------- 12 S-band RCP/LCP cross spectral power imaginary component W 1x,E12.5 Table 6 - 10 : BSR spectra file format 6.1.3.2.2.3. Bistatic Radar products level 2: Surface Reflection Geometry File tbd 6.2. New Norcia Station (level 1b and level 2) 6.2.1.Closed-loop IFMS level 1b products 6.2.1.1. Specifications document The processing of the IFMS Level 1a to Level 1b data is specified in the document MEX-MRS-IGM-MA-3017 Issue 1.0 IFMS-Read-Program User Manual 6.2.1.2. Input files The input files are: The incoming IFMS level 1a files 6.2.1.2.1. IFMS level 1a files The original IFMS files have file names and formats according to section 5.2.1. 6.2.1.3. Output IFMS Level 1b products 6.2.1.3.1. File name formats Since the incoming raw IFMS files are not PDS compliant, for each file a new file name is created and is formatted according to section 4.1 with the data archiving level set to lll = L1A and file ending set to .eee = .RAW . It replaces the original file name which is stored in the accompanying label file. The data source identifier is set to tttt = ICL1, ICL2, ICL3 or IOL3. New level 1a file name: rggttttL1A_sss_yydddhhmm_qq.RAW PDS labe l file names level 1a: rggttttL1A_sss_yydddhhmm_qq.LBL The processed data file names of level 1b are formatted according section 4.1 with the archiving level identifier set to lll = L1B. For each Level 1a data file three files are generated: Level 1b data file name: rggttttL1B_sss_yydddhhmm_qq.TAB IFMS configuration file name level 1b: rggttttL1B_sss_yydddhhmm_qq.CFG PDS labe l file names level 1b: rggttttL1B_sss_yydddhhmm_qq.LBL The label file contains the description of the .TAB as well as of the .CFG file. 6.2.1.3.2. Data file formats The program will produce up to fifteen different level 1b data files along with their respective label files according to PDS standards. The data files contain Doppler data, ranging data, meteorological data and AGC data. The file type identifier sss is set to: D1S D2S RGS AG1 RCS C1S C2S D1X D2X RGX AG2 RCX C2X C2X MET Furthermore, IFMS configuration files are created which contain the actual configuration of the respective IFMS (tttt = ICL1, ICL2, ICL3 or IOL3). The extension of the configuration files are eee = CFG, they describe data files of file type sss. 6.2.1.3.2.1. The Doppler Files D1S, D1X, D2S, D2X The program will read the information of the level 1a Doppler files and will produce Doppler files of level 1b containing data described in Table 6- 11 . Column description Unit 1 sample number 2 Ground received time as UTC in ISO format 3 Ground received time as UTC in fractions of day of year starting with the first day of the year the data was recorded in at 00:00.000 day 4 Ground received time in Ephemeris time beginning at J2000 (12 h 1 January 2000 TBD) second 5 Interval count 6 Unwrapped phase cycle 7 Spurious carrier (Flag 0 or 1) 8 Delta delay second Table 6-11 : format of IFMS level 1b doppler files 6.2.1.3.2.2. The Ranging Files RGX, RGS The program will read the information of the level 1a ranging file and will produce a level 1b ranging file containing data described in Table 6-12. Column description Unit 1 Sample number 2 Ground received time as UTC in ISO format 3 Ground reveived time as UTC in fractions of day of year starting with the first day of the year the data was recorded in at 00:00.000 day 4 Ground received time as Ephemeris time beginning at J2000 (12 h 1 January 2000 TBD) second 5 Delay second 6 Current Code (Number 0..24) 7 Ambiguity Done (Flag 0 or 1) 8 Spurious Carrier (Flag 0 or 1) 9 Spurious Tone (Flag 0 or 1) 10 Previous Correlation (Flag 0 or 1) 11 Estimated Doppler Effect or more precisely: minus relative velocity of s/c over c 12 DSP Status (Flag 0 or 1) 13 DSP Integrated Tone dB 14 DSP Integrated Code 15 DSP Phase Error cycl 16 DSP Toneloop SNR dB 17 DSP Modulation Index rad Table 6- 12 : format of the IFMS level 1b ranging files 6.2.1.3.2.3. The Meteorological File MET The program will read the information of the level 1a meteorological file and will produce a level 1b meteorological file for Earth atmosphere calibration. See section 9.4 for file name and file format description. 6.2.1.3.2.4. The AGC files AG1 and AG2 The program will read the information of the level 1a AGC files and will produce the level 1b AGC files containing data described in Table 6- 13. Colum Description Unit 1 Sample number N/A 2 Ground received time as UTC in ISO format 3 UTC sample time in fractions of day of year starting with the first day of the year the data was recorded in at 00:00.000 day 4 Ephemeris time beginning at J2000 (12 h 1 January 2000 TDB) second 5 Carrier Level dBm 6 Polarisation Angle of received carrier signal cycle Table 6 - 13 format of IFMS level 1b AGC files 6.2.1.3.2.5. The range calibration file RCX or RCS See section 9.1 6.2.1.3.2.6. The configuration files CFG See section 7.2 6.2.1.3.2.7. The doppler calibration files C1X, C1S, C2X, C2S See section 9.3 6.2.2. Closed-loop IFMS level 2 products 6.2.2.1. Specifications document The IFMS level 2 processing is specified in the documents MEX-MRS-IGM-DS-3035 IFMS Doppler Processing Software: Level 1a to Level 2 MEX-MRS-IGM-DS-3036 IFMS Ranging Processing Software: Level 1a to Level 2 6.2.2.2. Input files The input files are: The IFMS level 1a files (D1S,D1X, D2S,D2X, RGX,RGS) The orbit reconstructed file (RWT or RON) The range calibration file (RCX or RCS) Meteorological file AGC file Klobuchar coefficients for Earth ionosphere cali bration Spacecraft orbit SPICE kernels 6.2.2.2.1. The orbit reconstructed file RTW or RON The content and format of the predict file is described in section 8. 6.2.2.2.2. The range calibration file RCX or RCS The content and format of the range calibration file RCX and RCS is described in section 9 6.2.2.3. Output IFMS Level 2 products There may be several Doppler 1 X-Band files in level 1a which will be merged on level 2. The same is true for all other Doppler file type and Ranging X and S-Band files. Only files with continous sequenced numbers (the file names are the same only the sequence number varies for these files) are merged together. Otherwise a new Level 02 data file is created (merging data files with a new sequence of files). The level 2 source_product_id however gives the RAW IFMS file names since the raw files are used for processing. But the content of the IFMS raw files are identical to the corresponding level 1a IFMS files in one data set, only the file name is different. And the source_product_id of the level 1a files gives the original raw IFMS files. In addition the level 1A files have almost the same file name as the corresponding level 2 files. The corresponding level 1A files can be found in DATA/L1A/CLOSED_LOOP/IFMS/DP1 for Doppler 1 files DATA/L1A/CLOSED_LOOP/IFMS/DP2 for Doppler 2 files DATA/L1A/CLOSED_LOOP/IFMS/RNG for Ranging files M32ICL1L02_D1X_040931103_00.TAB is a level 2 Doppler 1 X-Band file in M32ICL1L02_D1X_040931103_00.LBL the following SOURCE_PRODUCT_ID is given: SOURCE_PRODUCT_ID = {"NN11_MEX1_2004_093_OP_D1_110358_0000", "NN11_MEX1_2004_093_OP_D1_110358_0001", "NN11_MEX1_2004_093_OP_D1_110358_0002"} which are the raw IFMS files. The corresponding Level 1A files can be found in DATA/L1A/CLOSED_LOOP/IFMS/DP1 Their names are: M32ICL1L1A_D1X_040931103_00.RAW M32ICL1L1A_D1X_040931103_01.RAW M32ICL1L1A_D1X_040931103_02.RAW and the corresponding label files give the source_product_id as: in the M32ICL1L1A_D1X_040931103_00.LBL file the source_product_id is given as: SOURCE_PRODUCT_ID = "NN11_MEX1_2004_093_OP_D1_110358_0000" in the M32ICL1L1A_D1X_040931103_01.LBL file the source_product_id is given as: SOURCE_PRODUCT_ID = "NN11_MEX1_2004_093_OP_D1_110358_0001" in the M32ICL1L1A_D1X_040931103_02.LBL file the source_product_id is given as: SOURCE_PRODUCT_ID = "NN11_MEX1_2004_093_OP_D1_110358_0002" Note that in this example the three three level 1A files were merged to one level 2 files. The file names of the level 1a files are almost identical to the level 2 file name with three differences: - L1A instead of L02 in the file name which tells the user that these are level 1A and level 2 files. - The two digit-sequence number at the end of the file can be different. - The level 1A files have file extension .RAW whereas level 2 files have file extension .TAB Table 6 - 14 : Example of the connection of Level 2 and 1a files. 6.2.2.3.1. File name formats The file names of the IFMS output level 2 files are formatted according to section 4.1 with the archiving level identifier set to lll = L02 and the file source identifier set to tttt = ICL1 or ICL2 or ICL3 for the IFMS 1, 2 or 3, respectively. The file type is set to sss = D1X or D2X for X-band Doppler or sss = D1S or D2S for S-band Doppler, respectively, or sss = RGX or RGS for calibrated X-band or S-band ranging files, respectively. r32ICL1L02_sss_yydddhhmm_qq.TAB 6.2.2.3.2. Log-Files Additionally a log-file is produced which contains information about the Level 2 processing of Doppler or Ranging data. These log-files are stored in EXTRAS/ANCILLARY/MRS/LOGFILES. The name of the files are the same like the Level 2 data files except for the sequence number qq and the extension. The sequence number is started with 00 and will be incremented by every new processing of the data. The extensions will be .LOG r32ICL1L02_sss_yydddhhmm_qq.LOG MEX GLOBAL GRAVITY FLAGS FROM PROCESS_OPTIONS FILE: -------------------------------- F Differential Range ON T Processing with UniBW Predict F Processing with AGC T Processing with CGIM T Processing with RCL F Processing with MET F Additional file for frequency correction F One-Way Mode F Active table is containing the correct frequency data NUMBER OF INPUT FILES: ---------------------- 04 Number of RGX files 00 Number of RGS files 00 Number of AGX files 00 Number of AGS files 00 Number of MET files FILES USED FOR PROCESSING: -------------------------- Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\NN11_MEX1_2004_300_OP_RG_235105_0000.raw Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\NN11_MEX1_2004_300_OP_RG_235105_0001.raw Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\NN11_MEX1_2004_300_OP_RG_235105_0002.raw Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\NN11_MEX1_2004_300_OP_RG_235105_0003.raw Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\NN11_MEX1_2004_300_CL_RG_202229_0000.raw Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\predict_300.txt Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\CGIM3000.04N\CGIM3000.04N FILES CREATED DURING PROCESSING: -------------------------------- Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\M32ICL1L02_RGX_043002351_00.TAB Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\M32ICL1L02_RGX_043002351_00.LBL Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\M32ICL1L02_RCX_043002022_00.TAB Z:\ddswork\process_data\Soft_RNG_L2\data\mars_express\300\M32ICL1L02_RCX_043002022_00.LBL CONFIGURATION INFO: -------------------- UPLINK-FREQUENCY X-BAND: 7166758739.9976720809936523 DOWNLINK-FREQUENCY X-BAND: 8420223886.7796421051025391 SAMPLE-INTERVAL X-BAND: 1.000 TRANSPONDER-RATIO X-BAND: 880/749 PROCESSING INFO: ---------------- PRODUCER ID: fels NO DIFFERENTIAL RANGE PLASMA-CORRECTION DONE WITH KLOBUCHAR-MODEL ERRORS: ------- No Errors during processing Table 6 - 15 : Example log-file of Ranging Level 2 processing. 6.2.2.3.3. IFMS Browse Plots (Level 2) In order to check data quality of IFMS Level 2 closed-loop data, quick look quality JPEG plots are produced. The name of the files are the same like the Level 2 data files except for the data type identifier which is set as sss=B1X,B1S,B2X,B2S if the source of the plots is a Doppler 1 X-Band, Doppler 1 S-Band, Doppler 2 X-Band or Doppler 2 S-Band file, and the extension will be .JPG r32ttttL02_sss_yydddhhmm_qq.JPG 6.2.2.3.4. Data file formats Level 2 6.2.2.3.4.1. Calibrated Doppler files D1X, D1S, D2X, D2S The calibrated Doppler files contain observed IFMS sky frequency, X-band Doppler and S-band Doppler frequency shift, residual (computed using the predict file), and the differential Doppler. If only a single downlink frequency was used, a differential Doppler cannot be computed and was set to zero in the output file. The formats are shown in Table 6-6 and Table 6-7 . 6.2.2.3.4.2. Calibrated ranging files RGX and RGS The level 2 ranging file contains the observed TWLT at X-band or S-band, the calibrated TWLT at X-band or S-band, the TWLT delay at X-band or S-band and the differential TWLT. If only one frequency was used, the differential TWLT is set to -99999.9. The formats are shown in Table 6-8 and Table 6-9. 7. Format of Descriptive Files 7.1. PDS label files 7.1.1. File name The extension is set to eee = LBL . rggttttlll_sss_yydddhhmm_qq.LBL 7.1.2. File Format All label files consist of a header and a description part of the format of the data file. 7.1.2.1. Header of label files The header of a label file contains general information about the data file like PDS version id, record type and so on. See Table 7-1 for a detailed description. 7.1.2.2. Description part of label files The description part of a label file contains information about the format and the data in every column of the according data file. Line | Name | Description ------------------------------------------------------------------- 1 | Pds_version_id | Version number of the PDS standard document ------------------------------------------------------------------- 2 | Data_set_id | Identifier for data set or data product ------------------------------------------------------------------- 3 | Processing_level_id| Identifier of a set of data according to | | the CODMAC standard ------------------------------------------------------------------- 4 | Target_name | Identifies a target: | | MARS | | VENUS | | P67 / CHURYUMOV-GERASIMENKO ------------------------------------------------------------------- 5 | Observation_Type | Mode of the executed measurement. Possible | | values are: | | Commissioning, Occultation, Target Gravity, | | Global Gravity, Solar Conjunction, | | Bistatic Radar, Phobos Gravity ------------------------------------------------------------------- 6 |Instrument_host_name| Full name of the host on which an instrument | | is based | | MARS EXPRESS | | VENUS EXPRESS | | ROSETTA-ORBITER ------------------------------------------------------------------- 7 | instrument_host_id | The instrument_host_id element provides a | | unique identifier for the host where an | | instrument is located. This host can be | | either an earth base or a spacecraft | | MEX | | VEX | | RO ------------------------------------------------------------------- 8 |Instrument_name | Full name of an instrument | | MARS EXPRESS ORBITER RADIO SCIENCE | | VENUS EXPRESS RADIO SCIENCE | | ROSETTA RADIO SCIENCE INVESTIGATIONS ------------------------------------------------------------------- 9 | Instrument_id | Acronym which identifies the instrument | | MRS | | VRA | | RSI ------------------------------------------------------------------- 10 | Producer_id | Name for the producer of the dataset | | IFMS_ESA/NNO | | DSN | | IGM_COLOGNE | | JPL | | SUE (Stanford University Center for | | Radar Astronomy) ------------------------------------------------------------------- 11 | DSN_station_number | DSN station number ------------------------------------------------------------------- 12 |Product_creation_time| UTC system format time when a product | | was created ------------------------------------------------------------------- 13 |Spacedraft_clock_start_count| N/A(only applicable for Rosetta) ------------------------------------------------------------------- 14 |Spacecraft_clock_stop_count| N/A(only applicable for Rosetta) ------------------------------------------------------------------- 15 |Standard_data_product_id | Type of a data product within a data set | | TNF | | ODF | | RSR | | IFMS1, IFMS2, IFMS3 ------------------------------------------------------------------- 16 | instrument_mod_id | ONE_D, TWOD_X ------------------------------------------------------------------- 17 | instrument_mod_desc | ONE-WAY DUAL-FREQUENCY X&S-Band D/L | | TWO-WAY DUAL-FREQUENCY X-BAND U/L | | X&SBand D/L ------------------------------------------------------------------- 18 | Product_id | Permanent, unique identifier of the data | | product ------------------------------------------------------------------- 19 | Source_product_id | The source_product_id data element | | identifies a product used as input to | | create a new product. ------------------------------------------------------------------- 20 | Software_name | Name of data processing software | | (Not available in level 1a) Table 7 - 1 : Description of the header of label files 7.2. IFMS Configuration files The configuration files contain the configuration or Active Table of each recording IFMS for each data type. 7.2.1. File name The file type description is set to sss of the to be described IFMS data file and the extension is eee = CFG. r32ttttL1B_sss_yydddhhmm_qq.CFG sss Description D1S uncalibrated Doppler 1 data file S-band D1X uncalibrated Doppler 1 data file X-band D2S uncalibrated Doppler 2 data file S-band D2X uncalibrated Doppler 2 data file X-band C1S Doppler 1 calibration data file S-band C1X Doppler 1 calibration data file X-band C2S Doppler 2 calibration data file S-band C2X Doppler 2 calibration data file X-band MET Meteo file RGS uncalibrated S-band range data file RGX uncalibrated X-band range data file RCS S-band range calibration data file RCX X-band range calibration data file 7.2.2. File format All configuration files are of the same format. See Appendix 12.1 for details. 7.3. ESOC Ancilliary files 7.3.1. Spacecraft Attitude Data; reconstructed 7.3.1.1. File name Original file name: ATNM_FDxMMx_DARyymmddhhmmss_vvvvv.MEX Where description ATNM Attitude file Acronym as described in [11] FDxMMx / FDxRMx File source: ESOC Flight Dynamics (FDS) for the Mars Express Mission Control System (MMS) / for the Rosetta Mission Control System (RMS) D Data A ASCII data R Reconstructed data yymmddhhmmss Date specifies start time of the data in the file vvvvv Version number MEX Mars Express file New MaRS and PDS compliant file name: r00ESOCL1A_ATR_yydddhhmm_vv.AUX The data source identifier is set to tttt = ESOC, the data type identifier is set to sss = ATR for reconstructed attitude data. The sequence number is equal to the version number of the original file name. The extension is set to eee = AUX. 7.3.1.2. File format The file format is described in the DDID Appendix H [referenced document 9]. A copy of the latest DDID Appendix H can be found on the most recent Data Archive Volumes. The structure of the Data Archive Volume is described in [10]. 7.3.2. Spacecraft orbit Event File 7.3.2.1. File name Original file name: EVTM_FDxMMx_DA______________vvvvv.MEX acronym | description ------------------------------------- EVTM | Event file | Acronym as described in [11] ----------------------------------------------------------------- FDxMMx / FDxRMx | File source: ESOC Flight Dynamics (FDS) for the Mars | Express Mission Control System (MMS) / for the Rosetta | Mission Control System (RMS) ------------------------------------------------------------------- D | Data ------------------------------------------------------------------- A | ASCII data ------------------------------------------------------------------- _ | Blank (underscore) ------------------------------------------------------------------- ____________ | 12x underscore no specific start date given ------------------------------------------------------------------- _vvvvv | Version number ------------------------------------------------------------------- MEX | Mars Express file New MaRS and PDS compliant file name: r00ESOCL1A_EVT_yydddhhmm_vv.AUX The data source identifier is set to tttt = ESOC, the data type identifier is set to sss = EVT for reconstructed attitude data. The sequence numbers are set to vv=00. The extension is set to eee = AUX. The event files are updated incrementally. The time information in the MaRS file name will be set to the last time the event file contains. 7.3.2.2. File format The file format is described in the DDID Appendix H [referenced document 9]. A copy of the latest DDID Appendix H can be found on the most recent Data Archive Volumes. The structure of the Data Archive Volume is described in [10]. 7.4. Information files Information files contain collected information in plain ASCII (e.g. letters, emails, tables, notes, etc. ) with regard to the respective data file to support analysis and interpretation. 7.4.1. File name The extension is set to eee = TXT r32ttttL1B_sss_yydddhhmm_qq.TXT examples are: The Experimter Notebook file where file type description is set to sss=ENB which contains emails with configuration information about the measurement 7.4.2. File format Plain ASCII text. 7.5. DSN Monitor File 7.5.1. Specification document none 7.5.2. File name The file type description is set to sss=MON, the data source identifier is ttt=DSN0 and the extension is eee=TXT. rggDSN0L1A_MON_yydddhhmm_qq.TXT 7.5.3. File format none; ASCII file 7.6. DSN Network Monitor and Control File 7.6.1. Specification document none 7.6.2. File name The file type description is set to sss=NMC, the data source identifier is ttt=DSN0 and the extension is eee=TXT. rggDSN0L1A_NMC_yydddhhmm_qq.TXT 7.6.3. File format none; ASCII file 7.7. DSN Sequence of Events File 7.7.1. Specification document none 7.7.2. File name The file type description is set to sss=SOE, the data source identifier is ttt=DSN0 and the extension is eee=TXT. rggDSN0L1A_SOE_yydddhhmm_qq.TXT 7.7.3. File format None; ASCII file 7.8 DSN EARTH ORIENTATION PARAMETER FILE 7.8.1 Specification document TRK_2_21.TXT 7.8.2 File name The file type description is set to sss=EOP the data source identifier is ttt=DSN0 and the extension is eee=TXT. r00DSN0L1A_EOP_yydddhhmm_qq.TXT 7.8.3 File format The Earth Orientation Parameters (EOP) file is generated by the Time and Earth Motion Precision Observation group at the NASA Jet Propulsion Laboratory. It is an ASCII file with several header records followed by a table with many records giving Earth orientation parameters: column description unit ==================================================== 1 Modified Julian date n/a 2 X coordinate of polar motion milliarcseconds 3 Y coordinate of polar motion milliarcseconds 4 TAI-UT1 or TAI-UT1R n/a 5 TAI-UTC seconds 6 nutation correction dPsi milliarcseconds 7 nutation correction dEps milliarcseconds 7.9. DSN LIGHT TIME FILE 7.9.1. Specification document none 7.9.2. File name The file type description is set to sss=LIT the data source identifier is ttt=DSN0 and the extension is eee=TXT. r00DSN0L1A_LIT_yydddhhmm_qq.TXT 7.9.3. File format The Light Time (LIT) file was generated at the NASA Jet Propulsion Laboratory to facilitate JPL/DSN support of the mission. It was derived from materials provided by the project. The LIT is an ASCII file having several header records followed by a table with light time values. column description unit ==================================================== 1 Date and time at the spacecraft n/a (yy-fff/hh:mm:ss format in UTC 2 downlink light time (spacecraft seconds to DSN station) 3 uplink light time (DSN station seconds to spacecraft 4 station number (03 =generic) n/a 5 line number (startin from 1) n/a 7.10 DSN ORBIT PROPAGATION AND TIMING GEOMETRY FILE 7.10.1. Specification document none 7.10.2. File name The file type description is set to sss=OPT the data source identifier is ttt=DSN0 and the extension is eee=TXT. rggDSN0L1A_OPT_yydddhhmm_qq.TXT 7.10.3. File format The Orbit Propagation and Timing Geometry (OPT) file was generated at the NASA Jet Propulsion Laboratory to facilitate JPL/DSN support of the project. It was derived from materials provided by the Project. The OPT is an ASCII file having several header records followed by a table of time-ordered orbit events (equator crossings, occultations, eclipses, periapsis times, etc.). column description unit ==================================================== 1 event title (e.g. PERIAP for n/a periapsis passage) 2 body name (e.g. MARS) n/a 3 spacecraft ephemeris time of n/a event (yyyy-dddThh:mm:ss.fff) 4 Julian date n/a 5 ET-UTC n/a 6 Orbit number n/a 7 time form periapsis n/a 8 Sun-Earth-probe angle degrees 8. Orbit Files 8.1. Doppler and Range Prediction file 8.1.1. Specification document MEX-MRS-IGM-DS-3039 Radio Science Predicted and Reconstructed Orbit Data: Specifications The Doppler and range predict file is provided by UniBwM and contains predicted Doppler and range for a given time span for one-way and two-way data. 8.1.2. File name The predict file name is formatted according to section 4.1 by setting the archiving level to lll = L02 and the file type to sss =PTW or sss = PON for two-way or one-way data, respectively. The file source is set to tttt = UNBW. The predict file is always relative to a given ground station (topocentric). rggUNBWL02_sss_yydddhhmm_qq.TAB 8.1.3. File format 8.1.3.1. Two-way Doppler and range predict files column description unit resolution 1 sample number 2 year (t_TWRD) 3 UTC Time stamp in ISO format (t_TWRD) 4 UTC Time in Fractions of DOY (t_TWRD) days 10E -7 days 5 Ephemeris Time since J2000 (12 h 1 January 2000 TBD) (t_TWRD) days Integer 6 TWUL_Doppler v _los,ul/c 10E-14 7 TWDL Doppler v_los,dl/c 10E-14 8 TWUL Doppler v_los,ul/c considering gravity fields degree and order l,m <= 10 10 -14 9 TWDL Doppler v_los,dl/c considering gravity fields degree and order l,m <= 10 10 -14 10 TW geom. range ( r_SC(t_TWE) - r_GS(t_TWE) ) km 0.1 km 11 TW range ( (r_SC(t_TWRU)-r_GS(t_TWE))+((r_GS(t_TWRD)-r_SC(t_TWRU)) ) km 0.1 km 12 DLLT (t TWRU- t TWRD) seconds nsec 13 TWLT (t TWE -t TWRD) seconds nsec Table 8-1 : Two-way Doppler and range prediction file format 8.1.3.2. One -way Doppler and range predict files columndescriptionunitresolution 1 sample number 2 Year (t OWR) 3 UTC Time stamp in ISO format (t_TWRD) 4 UTC Time in Fractions of DOY (t_TWRD) days 10E-7 days 5 Ephemeris Time since J2000 (12 h 1 January 2000 TBD) (t_TWRD) days Integer 6 OW geom. range ( r_SC(t_OWE) - r_GS(t_OWE) ) 7 One-Way Doppler v_los/c 10E-14 8 One-Way Doppler v_los/c considering gravity fields degree and order l,m <= 10 10E-14 9 OWLT (t_OWR ? t_OWE) seconds nsec Table 8- 2 : One-way Doppler and range prediction file format Nomenclature: OW one way link TW two way link UL uplink DL downlink c speed of light (c = 299,792,458 m/s) LT Light time v_LOS relative velocity between ground station and S/C (in the line of sight) r_SC(t) Position of S/C at time t r_GS(t) Position of ground station at time t t_OWE Time at emission of signal at S/C (one-way calculation) t_OWR Time at reception of signal at ground station (one-way calculation) t_TWE Time at emission of signal at ground station (two-way calculation) t_TWRU Time at reception of signal at S/C (two-way calculation - uplink) t_TWRD Time at reception of signal at ground station (two-way calculation - downlink) 8.2. Reconstructed Doppler & range orbit file The Doppler and range reconstructed orbit file is provided by UniBwM and contains post-observation reconstructed Doppler and range for a given time span for one-way and two-way data. 8.2.1. File name The orbit file name is formatted according to section 4.1 by setting the archiving level to lll = L02 and the file type to sss = RTW or sss = RON for two-way or one-way data, respectively. The file type is set to ttt = ORB. The predict file is always relative to a given ground station (topocentric). rggUNBWL02_sss_yydddhhmm_qq.TAB 8.2.2. File format 8.2.2.1. Two-way Doppler and range reconstructed orbit files column description unit resolution 1 sample number 2 year (t_TWRD) 3 UTC Time stamp in ISO format (t_TWRD) 4 UTC Time in Fractions of DOY (t_TWRD) days 10E-7 days 5 Ephemeris Time since J2000 (12 h 1 January 2000 TBD) (t TWRD) days Integer 6 TWUL Doppler v_los,ul/c 10E -14 7 TWDL Doppler v_los,dl/c 10E -14 8 TWUL Doppler v_los,ul/c considering gravity fields degree and order l,m <= 10 10E -14 9 TWDL Doppler v_los,dl/c considering gravity fields degree and order l,m <= 10 10E -14 10 TW geom. range ( r_SC(t_TWE) - r_GS(t_TWE) ) km 0.1 km 11 TW range ( (r_SC(t_TWRU)-r_GS(t_TWE))+((r_GS(t_TWRD)-r SC(t_TWRU)) ) km 0.1 km 12 DLLT (t_TWRU- t_TWRD) seconds nsec 13 TWLT (t_TWE -t_TWRD) seconds nsec Table 8- 3 : File format description of Two-way Doppler reconstructed files. 8.2.2.2. One -way Doppler and range reconstructed orbit files column description unit resolution 1 sample number 2 Year (t_OWR) 3 UTC Time stamp in ISO format (t_TWRD) 4 UTC Time in Fractions of DOY (t_TWRD) days 10E-7 days 5 Ephemeris Time since J2000 (12 h 1 January 2000 TBD) (t TWRD) days Integer 6 OW geom. range ( r_SC(t_OWE) - r_GS(t_OWE) ) 7 One-Way Doppler v_los/c 10E -14 8 One-Way Doppler v_los/c considering gravity fields degree and order l,m <= 10 9 OWLT (t_OWR t_OWE) seconds nsec Table 8 - 4 : One-way Doppler and range prediction file format Nomenclature: OW one way link TW two way link UL uplink DL downlink c speed of light (c = 299,792,458 m/s) LT Light time v_LOS relative velocity between ground station and S/C (in the line of sight) r_SC(t) Position of S/C at time t r_GS(t) Position of ground station at time t t_OWE Time at emission of signal at S/C (one-way calculation) t_OWR Time at reception of signal at ground station (one-way calculation) t_TWE Time at emission of signal at ground station (two-way calculation) t_TWRU Time at reception of signal at S/C (two-way calculation - uplink) t_TWRD Time at reception of signal at ground station (two-way calculation - downlink) 8.3. Spacecraft Heliocentric Cruise Orbit File 8.3.1. File name Original file name: ORHM_FDxMMx_DA______________vvvvv.MEX Where | description -------------------------------------------------------- ORHM | Spacecraft orbit, cruise, heliocentric | Acronym as described in [11] -------------------------------------------------------- FDxMMx / FDxRMx | File source: ESOC Flight Dynamics (FDS) | for the Mars Express Mission Control | System (MMS) / for the Rosetta Mission | Control System (RMS) -------------------------------------------------------- D | Data -------------------------------------------------------- A | ASCII data -------------------------------------------------------- _ | Blank (underscore) -------------------------------------------------------- ____________ | 12x blank (underscore) no specific | time or time range given -------------------------------------------------------- _vvvvv | Version number -------------------------------------------------------- MEX | Mars Express file New radio science and PDS compliant file name: M00ESOCL1A_OHC_yydddhhmm_vv.AUX The data source identifier is set to tttt = ESOC, the data type identifier is set to sss = OHC for the heliocentric cruise orbit file. The sequence number is equal to the version number of the original file name. The extension is set to eee = AUX. 8.3.2 File format The file format is described in the DDID Appendix H [referenced document 9]. A copy of the latest DDID Appendix H can be found on the most recent Data Archive Volumes. The structure of the Data Archive Volume is described in [10]. 8.4. Spacecraft Marscentric Orbit File 8.4.1. File name Original file name: ORMM_FDxMMx_DA_yymmddhhmmss_vvvvv.MEX | description ------------------------------------------------- ORMM | Spacecraft orbit, operational, Marscentric | Acronym as described in [11] ------------------------------------------------- FDxMMx / FDxRMx | File source: ESOC Flight Dynamics (FDS) for the Mars | Express Mission Control System (MMS) / for the Rosetta | Mission Control System (RMS) -------------------------------------------------- D | Data -------------------------------------------------- A | ASCII data -------------------------------------------------- _ | Blank (underscore) -------------------------------------------------- yymmddhhmmss | Date specifies start time of the data in the file -------------------------------------------------- _vvvvv | Version number -------------------------------------------------- MEX | Mars Express file New MaRS and PDS compliant file name: M00ESOCL1A_OMO_yydddhhmm_vv.AUX The data source identifier is set to tttt = ESOC, the data type identifier is set to sss = OMO for the marscentric operational orbit file. The sequence number is not equal to the version number of the original file name. Instead they get a new chronological sequence number. OMO files always cover a month of orbit data and get frequently updated. Therefor the first file from ESOC that covers a specific file gets after renaming the sequence number _00 and when an updated OMO is received the new file will get the same file name as the first file but the sequence number is increased by one and so on. Utimately only the files with the higest version numbers will be archived since these contain the latest orbit information. The extension is set to eee = AUX. 8.4.2. File format The file format is described in the DDID Appendix H [referenced document 9]. A copy of the latest DDID Appendix H can be found on the most recent Data Archive Volumes. The structure of the Data Archive Volume is described in [10]. 8.5. Rosetta orbit files 8.5.1. file name Original file name: cccc_FDxRMx_DA ______________vvvvv.ROS Where | description --------------------------------------------- cccc | Data type identifier --------------------------------------------- FDxMMx / FDxRMx | File source: ESOC Flight | Dynamics (FDS) for the | Rosetta Mission Control | System (RMS) --------------------------------------------- D | Data --------------------------------------------- A | ASCII data --------------------------------------------- _ | Blank (underscore) --------------------------------------------- ____________ | 12x blank (underscore) | no specific time or time range given --------------------------------------------- _vvvvv | Version number --------------------------------------------- ROS | Rosetta file New RSI and PDS compliant file name: R00ESOCL1A_sss_yydddhhmm_vv.AUX The data source identifier is set to tttt = ESOC. The sequence number is equal to the version number of the original file name. The extension is set to eee = AUX. The data type identifier is set from cccc to sss: Orginal (cccc)| New(sss)| description ---------------------------------------------------------- ORER | OER | Earth centric 1. flyby / Rosetta ---------------------------------------------------------- ORFR | OFR | Earth centric 2. flyby / Rosetta ---------------------------------------------------------- ORGR | OGR | Earth centric 3. flyby / Rosetta ---------------------------------------------------------- ORMR | OMR | Mars centric / Rosetta ---------------------------------------------------------- ORHR | OHR | Heliocentric / Rosetta ---------------------------------------------------------- ORHO | OHO | Heliocentric / 1. flyby asteroid ---------------------------------------------------------- ORHS | OHS | Heliocentric / 2.flyby asteroid ---------------------------------------------------------- ORHW | OHW | Heliocentric / Churyumov-Gerasimenko ---------------------------------------------------------- ORPR | OPR | Medium term planning / Rosetta ---------------------------------------------------------- ORWR | OWR | comet centric / Rosetta ---------------------------------------------------------- 8.5.2. file format The file format is described in the DDID Appendix H [referenced document 9]. A copy of the latest DDID Appendix H can be found on the most recent Data Archive Volumes. The structure of the Data Archive Volume is described in [10]. 9 calibration files 9.1. IFMS Calibration Files 9.1.1. IFMS Range Calibration level 1b The IFMS range calibration file is taken before or after the NNO tracking passand contains the range delay within the IFMS ground station equipment. 9.1.1.1. File name The range calibration file name is formatted according to section 4.1 by setting the archiving level to lll = L1B , the file type to sss = RCX or RCS, the file type is set to tltt = ICL1 or ICL2, depending on the uplinking IFMS and the ground station is gg = 32. r32ttttL1B_sss_yydddhhmm_qq.TAB 9.1.1.2. File format The file content and file format for the range calibration file is identical to the regular range file as described in section 6.2.1.3.2.2 . 9.1.2. IFMS Range Calibration level 2 9.1.2.1. Specification document MEX-MRS-IGM-DS-3036 IFMS Ranging Processing Software: Level 1a to Level 2 Software Design Specifications The range calibration file Level 2 contains the measured equipment delay, the average value and the 1-sigma rms value. The difference to the Level 1b file is the resolved ambiguity of the measured range del ay. 9.1.2.2. File name The range calibration file name is formatted according to section 4.1 by setting the archiving level to lll = L02 , the file type to sss = RCX or RCS, the file type is set to tltt = ICL1 or ICL2, depending on the uplinking IFMS and the ground station is gg = 32. r32ttttL02_sss_yydddhhmm_qq.TAB 9.1.2.3. File format column | description | unit | resolution =================================================== 1 | Sample number | | --------------------------------------------------- 2 | Ground received time as | | | UTC in ISO format | | --------------------------------------------------- 3 | Ground received time as | | | UTC in fractions of day | | | of year starting with | | | the first day of the | | | year the data was | | |recorded in at 00:00.000 | day | 10E-7 day --------------------------------------------------- 4 | Ground received time | | | as Ephemeris time | | | beginning at J2000 | | |(12 h 1 January 2000 TDB) |second|Second ---------------------------------------------------- 5 |Mean average value of | | |equipment propagation delay |second|nsec ---------------------------------------------------- 6 |equipment propagation delay |second|nsec --------------------------------------------------- 7 |Root Mean Square of | | |equipment propagation delay |second|nsec 9.1.3. IFMS Doppler Calibration Files The IFMS doppler calibration file is taken before or after the NNO tracking pass at the same time as the IFMS ranging calibration file. 9.1.3.1. File name The doppler calibration file name is formatted according to section 4.1 by setting the archiving level to lll = L1B , the file type to sss = C1X or C2X or C1S or C2S, the file type is set to tltt = ICL1 or ICL2, depending on the uplinking IFMS and the ground station is gg = 32. r32ttttL1B_sss_yydddhhmm_qq.TAB 9.1.3.2. File format The file content and file format for the doppler calibration file is identical to the regular doppler file as described in section 6.2.1.3.2.1 . Column description Unit 1 sample number 2 Ground received time as UTC in ISO format 3 Ground received time as UTC in fractions of day of year starting with the first day of the year the data was recorded in at 00:00.000 day 4 Ground received time as Ephemeris time beginning at J2000 (12 h 1 January 2000 TDB) second 5 Interval count 6 Unwrapped phase cycle 7 Spurious carrier 8 Delta delay second 9.1.4. IFMS meteorological calibration The meteorological file is the Level 1b IFMS output and describes the temperature, atmospheric pressure and humidity at the ground station site. The file is accompagnied by the IFMS configuration file *.CFG (see Appendix 12.1 for content). Since the meteorological information is stored independently from doppler and ranging measurements, these files usually do not start and stop at the same time as a Doppler or range data file. That means that sometimes the meteorological data applicable for a Doppler or range data file has to be extracted from two files. 9.1.4.1. File name format The file name of the meteorological file is formatted according to section 4.1 by setting the archiving level to lll = L1B , the file type to sss = MET, the file type is set to tltt = ICL1 or ICL2, depending on the uplinking IFMS and the ground station is gg = 32. r32ttttL1B_MET_yydddhhmm_qq.TAB 9.1.4.2. File format Column | description |Unit =================================================== 1 |Sample number | --------------------------------------------------- 2 |UTC Time in ISO format | --------------------------------------------------- 3 |UTC Time in DOY and fractions of day|day --------------------------------------------------- 4 |Ephemeris time since J2000 | ---------------------------------------------------- |(12 h 1 January 2000 TDB) |second ---------------------------------------------------- 5 |Humidity |% ----------------------------------------------------- 6 |Pressure |HectoPascal ----------------------------------------------------- 7 |Temperature | ? C 9.1.5 CORRECTED UPLINK FREQUENCY The wrong uplink frequency is sometimes provided in the IFMS Level 1a Doppler Raw-Files coming from ESOC. The correct frequency will be calculated and corrected in Level 2 data files. The Level 1a file including the wrong frequency, the appropriate Level 2 file including the correct frequency, the wrong and correct frequency and the source file from which the correct frequency was derived are provided for each occurrence of this error in the folder UPLINK_FREQ_CORRECT in the CALIB directory. Filenname: UPLINK_FREQ_CORRECT_NNnn_Dd.TAB Acronym | Description |Example --------------------------------- nn | IFMS 1, 2 or 3 | NN11 | | NN12 | | NN13 --------------------------------- d | Doppler channel| 2 | 1 or 2 | 1 Table 9.1.5: File Naming Convention of the files indicating wrong and false uplink frequency and their corresponding source files. There will be no UPLINK_FREQ_CORRECT folder if all uplink frequencies in the Level 1a IFMS Doppler files are correct. 9.2. DSN Calibration files 9.2.1 DSN METEO Calibration File 9.2.1.1. Specification document TRK_2_24.TXT 9.2.1.2. File name format This file presents meteorological data as a function of time at the location of the DSN ground station complexes. gg = 10, 40, 60 is set for the ground station complex rggDSN0L1A_MET_yydddhhmm_qq.AUX 9.2.1.3. File format The file has a header line: DATE: yymmdd DOY: ddd DSS gg And six columns with meteorological information for every 30 minutes column description unit 1 time hhmm 2 dew p temperature degree Celsius 3 temperature degree Celsius 4 pressure mbar 5 H2O partial pressure mbar 6 relative humidity % The format repeats itself for each day of the year. 9.2.2. DSN modified METEO Calibration File The DSN meteorological calibration was modified to match the format of the IFMS meteorological calibration file in order to be able to reuse existing software modules for the ODF processing at the L1B data level. One file for each ground station complex was created. 9.2.2.1. File name format This file presents meteorological data as a function of time at the location of one DSN ground station complex by setting gg = ground station complex. rggDSN0L1B_MET_yydddhhmm_qq.TAB 9.2.2.2. File format Column description Unit 1 Sample number 2 UTC time in ISO format 3 UTC time in DOY and fractions of day day 4 Ephemeris time since J2000 (12 h 1 January 2000 TBD) second 5 Humidity (percent) 6 Pressure hecto Pascal 7 Temperature degree Celsius 9.2.3. DSN Tropospheric Calibration model File 9.2.3.1. Specification Document TRK_2_23.TXT 9.2.3.2. File name format This file presents a model of the Earth troposphere at the location of a DSN ground station antenna. rggDSN0L1A_TRO_yydddhhmm_qq.AUX 9.2.3.3. File format tbd column description unit 9.2.4. DSN Ionospheric Calibration File 9.2.4.1. Specification Document TRK_2_21.TXT 9.2.4.2. File name format This file presents a model of the Earth ionosphere at the location of a DSN ground station antenna. rggDSN0L1A_ION_yydddhhmm_qq.AUX 9.2.4.3. File format tbd column description unit 9.2.5 Surface Reflection Filer Files Surface Reflection Filter files (SRF) contain power spectra derived from noise measurements when the radio system was stable and there were no spacecraft signals in the passband. SRF's were derived separately for each receiver channel; but the fact that the spectral characteristics of each receiver depended almost entirely on digital signal processing meant that there was little practical difference among channels when sampling rates (output bandwidths) were the same and the SRF's were interchangeable. 9.2.5.1 File name format GNC's are ASCII files having names of the form rggSUE0L02_SRF_yydddhhmm_qq.TAB 9.2.5.2 File format SRF's are ASCII PDS SPECTRUM objects with attached labels. 9.2.6 Bistatic Radar calibration log files Bistatic radar calibration log files (BCL) contain system temperature calibration results. For each receiver channel the table includes the best estimate of system temperature with the antenna pointed to zenith (either pre- or post-cal, or a combination of both), the associated noise diode temperature, and the system temperature at the mid-point of the bistatic (surface) observation. In general there is one set of four rows for each experiment - one for each receiver channel (X-band and S-band, right- and left-circular polarization). The table is cumulative, growing by four rows for each new observation. The Bistatic Radar Calibration files are produced by the Stanford University Element (SUE) under the direction of R.A. Simpson. 9.2.6.1 File name format BCLs are ASCII files having names of the form rggSUE0L1A_BCL_yydddhhmm_qq.TAB Since these files are cumulative the first file from Stanford gets after renaming the sequence number _00 and when an updated BCL - usually after a new bistatic radar measurement - is received the new file will get the same file name as the first file but the sequence number is increased by one and so on. Utimately only the files with the higest version numbers will be archived since these contain the latest information. The extension is set to eee = TAB 9.2.6.2 File format BCLSs are ASCII tabels with dettached labels. 1 Antenna number 2 Receiver channel and polarization. Possible values are: XR: X-Band; right circular XL: X-Band; left circular SR: S-Band; right circular SL: S-Band; left circula 3 Zenith time in UTC; ZENITH_TIME is usually an average time for the interval over which the values were obtained, typically a few tens of minutes. In some cases pre-calibration and post-calibration values were both used, in which case the interval covers several hours. 4 System temperature with the antenna pointed to zenith by comparing powers from an ambient load and sky (Kelvin) 5 Noise diode temperature. The effective temperature of the calibration noise diode obtained by comparing its additive power against the value in Column 4 with the antenna pointing to zenith (Kelvin) 6 BSR time in UTC; The time of the bistatic radar measurement. - Typically the center time for an interval of about 20 minutes to which the value in Column 7 applies. 7 System temperature at the center of the observing interval during which bistatic radar surface surface echoes were being received. (Kelvin) 10 Geometry files 10.1. Planetary Constellation Geometry 10.1.1. Specification Document A barycentric EME 2000 state vector file is provided by UniBwM and contains the state vectors of the Earth and a given interplanetary body from Table 10-1. MEX-MRS-IGM-DS-3039 Radio Science Predicted and Reconstructed Orbit and Planetary Constellation Data: Specifications 10.1.2. File name The file name is formatted according to section 4.1 by setting the archiving level to lll = L02 and the file type sss can be found in Table 10.1. The data source identifier is set to tttt = GEOM. The state vector file is always barycentric (solar system barycentre) EME 2000. r00GEOML02_sss_yydddhhmm_qq.TAB Spacecraft Interplanetary body sss Mars Express Mars MAR Venus Express Venus VEN Rosetta Asteroid (tbd) Tbd Rosetta Comet 67 P/Churyumov-Gerasimenko P67 Table 10- 1 : interplanetary bodies 10.1.3. File format column description unit resolution 1 Sample number 2 time as UTC in ISO format 3 time as UTC in fractions of day of year starting with the first day of the year the data was recorded in at 00:00.000 days 10E-7 days 4 time as Ephemeris time beginning at J2000 (12 h 1 January 2000 TBD) seconds seconds 5 x-component Earth r_Ex AU 10E-9 AU 6 y-component Earth r_Ey AU 10E-9 AU 7 z-component Earth r_Ez AU 10E-9 AU 8 Distance Sun Earth AU 10E-9 AU 9 x-component Planet r_Px AU 10E-9 AU 10 y-component Planet r_Py AU 10E-9 AU 11 z-component Planet r_Pz AU 10E-9 AU 12 Distance Sun Planet AU 10E-9 AU 13 angle Planet-Sun-Earth PSE deg 0.1 deg 14 angle Sun-Earth-Planet SEP deg 0.1 deg 15 angle Sun-Planet-EarthSPE deg 0.1 deg 16 solar offset R solar radii 0.01 solar radii 17 y-component of solar offset R solar radii 0.01 solar radii 18 z-component of solar offset R solar radii 0.01 solar radii 19 x-component of vector sun-planet AU 10E-9 AU 20 y-component of vector sun-planet AU 10E-9 AU Table 10 - 2 : file format of the solar conjunction geometry file. 11 SPICE 11.1. Introduction 11.1.1. Spice files The NAIF group at JPL will produce SPICE files from the Mars Express orbit files generated by ESOC. The SPICE files relevant for the respective MaRS data will be copied on the archive CD-ROM volume. They are also available from the following file servers: At ESTEC: ftp://solarsystem.estec.esa.nl/pub/projects/mex/data/spice at JPL: ftp://naif.jpl.nasa.gov/pub/naif/MEX available SPICE files: SPK spacecraft orbit kernel file EK ephemeris kernel file for the planets CK C-matrix instrument attitude kernel file TLS leap second kernel file FK frame kernel file IK instrument kernel file ORBNUM orbit numbering kernel file PCK planetary constant kernel file SCLK spacecraft clock kernel file 11.1.2.File handling and description The documentation of the SPICE subroutines and the use of the kernels is described in [15] and can be retrieved from ftp://naif.jpl.nasa.gov/pub/naif/toolkit_docs/Tutorials/pdf/ 11.1.3 Modified Spice Kernels RSR files are accompanied by modified spice kernels were the original NAIF SPICE kernels are combined with the JPL DE405 and Phobos/Deimos ephemeredes. For information regarding these files see: http://ssd.jpl.nasa.gov 11.2. SPK Orbit Kernel file 11.2.1. File name ESTEC original file name: AAAA______________vvvvv.BSP Where description aaaa ORMM = spacecraft orbit, operational, marscentric ORMF = spacecraft orbit, marscentric, frozen orbit ORHM = spacecraft orbit, cruise, heliocentric, Mars Express Aconym as described in [11] ______________ 14 underscores vvvvv Version number BSP Binary SP file 11.3. EK Ephemeris Kernel File 11.3.1. File name ESTEC original file name: tbd 11.4. CK C-Matrix instrument attitude File 11.4.1. File name ESTEC original file name: ATNM_ Pyymmddhhmmss_vvvvv.BC Where description ATNM Predicted / reconstituted attitude Aconym as described in [11] P P = predicted yymmddhhmmss Time stamp vvvvv Version number BC Binary CK file 11.5. TLS Leap Second Kernel file 11.5.1. File name JPL/NAIF original file name: NAIFvvvv.TLS currently the most actual leap second file. Where description NAIF vvvv Version number (currently 0007) 11.6. FK Frame Kernel file 11.6.1.Frame Kernel File name There are five actual JPL/NAIF frame kernel files with the original file names: Original file name description DSN_TOPO.TFFrame kernel file for all DSN ground stations NEW_NORCIA_TOPO.TF Frame kernel file for the 35-m station in New Norcia (NNO). An read.me file is available. A location SPK file is available under the old file name NEW_NORCIA.BSP and described in 11.6.2 EARTHFIXEDIAU.TF SPICE reference frame mapped to EARTH_IAU EARTHFIXEDITRF93.TF SPICE reference frame mapped to IRTF 1993 MEX_V04.TF Mars Express spacecraft frame kernel 11.6.2. Location Kernel file name The following location kernels are available: Original NAIF file name description NEW_NORCIA.BSP A location SPK file for the 35-m New Norcia station 11.7. IK Instrument Kernel file 11.7.1. File name NAIF original file name: tbd 11.8. ORBNUM Orbit Numbering file 11.8.1.File name ESTEC original file name: ORMF______________vvvvv.ORB Where description ORMF ORMF = spacecraft orbit, marscentric, frozen orbit Aconym as described in [11] ______________ 14 underscores vvvvv Version number the highest version number presents the most actual file ORB Orbit numbering file An important descriptive file is availbale as: M00NAIFL1B_ORB_04001000000_vv.TXT 11.9. PCK Planetary Constant file 11.9.1. File name NAIF original file name description MARS_IAU2000_V0.TPC Mars planetary constant file 11.10. SCLK Spacecraft Clock Kernel file 11.10.1. File name NAIF original file name: MEX_yymmdd_STEP.TSC description MEX_yymmdd_STEP.TSC This file is a SPICE spacecraft clock (SCLK) kernel containing information required for MEX spacecraft on-board clock to UTC conversion . The most actual file will be provided yymmdd Is the start time of the clock kernel 12 Time standards and Formats 12.1. Time Standards MaRS, RSI and VeRa data products makes use of different Time and Reference system. For our data processing and archiving the most important Time Systems are: Coordinated Universal Time (UTC) Ephemeris Time (ET) The scientific success of a Radio Science Experiment depends critically on a common understanding about the conventions for the reference and time systems. The following sections give an overview of the time standards necessary to understand the above mentioned Time systems and to convert to other common Time Systems. It should be noted that radio science data are generated and recorded at ground stations. Thus the times given in the data and label files are ground station and not onboard time. 12.1.1. Coordinated Universal Time (UTC) Coordinated Universal Time (UTC) is obtained from atomic clocks running at the same rate as TT (see section 12.1.3.3 ) or TAI (see section 12.1.3.2 ). The UTC time scale is always within 0.7 seconds of UT1 (see section 12.1.3.5 ). By the use of leap seconds, care is taken to ensure that this difference is never exceeded. However, because of the introduction of the leap seconds it becomes clear that this time scale is not steady. The International Earth Rotation Service (IERS) can add leap seconds and is normally doing this at the end of June or December of each year if necessary. The actual UTC can only be determined for a previous point in time but predictions for the future are published by the IERS. This fact should be noted when future missions are planned on the base of the UTC time standard. UTC can be obtained by the difference of the predicted value DUT1 or the past value D UT between UT1 and UTC published in the IERS Bulletin A (http://maia.usno.navy.mil/) which contains previous leap seconds and predictions : or UTC = UT - D UT This relation is needed to obtain UT1 (UT) from UTC. 12.1.2. Dynamical Time Scale T eph for the JPL DE 405 Ephemeris In a general relativistic framework, time is not an absolute quantity but depends on the location and motion of a clock. Therefor unlike UTC T eph is not based on the rotation of the earth around its axis. T eph refers to the center of mass of the solar system and is the independent variable of barycentric planetary ephemerides. It should be noted that during the years 1984 2003 the time scale of ephemerides referred to the barycenter of the solar system was the relativistic time scale Barycentric Dynamic Time TDB (see section 12.1.3.1 ). From 2004 onwards this time scale for the JPL DE 405 ephemeris will be replaced by T eph. For practical purposes the length of the ephemeris second can be taken as equal to the length of the TDB second. T eph is approximately equal to TDB, but not exactly. On the other hand, T eph is mathematically and physically equivalent to the newly-defined TCB (see section 12.1.3.7 ), differing from it by only an offset and a constant rate. Within the accuracy required by MaRS, RSI and VeRa we use: T eph ~ TDB. T eph is then defined as seconds past J2000, with J2000 being 12 h 1 January TDB. 12.1.3. Other Time Standards 12.1.3.1. Barycentric Dynamic Time (TDB) Since the differences compared to TT are fairly small, the corrections can be determined by the following approximation : TDB = TT + 0.001658 sec x sin g + 0.000014 sec x sin (2g) with g being the mean anomaly of the Earth in its orbit given by g=357.53 + 0.95856003 x (JD(UT1)-2451545.0) [deg] 12.1.3.2. International Atomic Time (TAI) TAI provides the practical realization of a uniform time scale based on atomic clocks. This time is measured at the surface of the Earth. Since this time scale is a steady one, it differs from UTC by an integral number of leap seconds introduced up the current point in time: TAI = UTC + LS where LS is the number of leap seconds. The unit of TAI is the SI second. 12.1.3.3.Terrestrial Dynamic Time (TT) Terrestial Time (TT) ? formerly Terrestrial Dynamical Time (TDT) - is to be understood as time measured on the geoid. It has conceptionally a uniform time scale. TT is the independent variable of geocentric ephemerides. TT replaced Ephemeris Time (ET) in 1984. The difference between TT and the atomic time scale (TAI) is a constant value of 32.184 seconds: TT=TAI+32.184 sec One therefore obtains also the relationship: UTC=TT-32.184 sec - LS TT does not take into account relativistic corrections. It is used as an independent argument of geocentric ephemeris. 12.1.3.4. GMT (UT) Time is traditionally measured in days of 86400 SI seconds. Each day has 24 hours counted from 0 h at midnight . The motion of the real sun was replaced by the concept of a fictitious mean sun that moves uniformly in right ascension defining the Greenwich Mean Time (GMT) or Universal Time (UT). Greenwich Mean Sidereal Time (GMST), however, is the Greenwich hour angle of the vernal equinox, i. e. it denotes the angle between mean vernal equinox of date and the Greenwich meridian. The mean vernal equinox is based on a reference system which takes into account the secular effects, i.e. the precession of the Earth?s equator but not periodic effects such as the nutation of the Earth?s axis. In terms of SI seconds, the length of a sidereal day (i. e. the Earths spin period) amounts 23 h 56 m 4 s.091 ? 0 s.005 (corresponding to a factor 1/1.00273790935) making it about four minutes shorter than a 24 h solar day. Hence, sidereal time and mean solar time have different rates. 12.1.3.5. Universal Time (UT1) Universal Time UT1 is the presently adopted realization of a mean solar time scale (constant average length of a solar day of 24 hours) with UT1 = UT. As a result, the length of one second of UT1 is not constant because of the apparent motion of the sun and the rotation of the Earth. UT1 is therefore defined as a function of sidereal time. For any particular day, 0 h UT1 is defined as the instant at which Greenwich Mean Sidereal Time (GMST) has the value: GMST(0h UT1) = 24110.54841 sec + 8640184.812866 sec x T_0 + 0.093104 x T_0exp(2)-0.0000062 sec x T_0exp(3) For an arbitrary time of the day, the expression may be generalized to obtain the Greenwich hour angle GHA by multiplying this time with the factor 1.00273790935, adding this result to GMST and convert it into degrees (if so desired) GMST(UT1) = 24110.54841 sec + 8640184.812866 sec x T_0 + 1.00273790935 UT1 + 0.093104 sec x Texp(2) - 0.0000062 sec x Texp(3) where T is the time in Julian centuries since the 1st of January 2000 , 12 h, i.e. 2000 Jan. 1.5 : T = (JD(UT1)-2451545)/36525 and JD is the Julian Date. Ecliptic and Earth equator at 2000 Jan 1.5 define the J2000 system. The most useful relation for computer software is one that uses only JD (UT1): GMST(degree) = 280.46061837 + 360.98564736629 x (JD-2451545.0) + 0.000387933 Texp(2) - Texp(3) /38710000 The difference between UT1 and TT or TAI ( atomic clock time, to be explained below) can only be determined retrospectively. This difference is announced by the International Earth Rotation Service (IERS) and is handled in practice by the implementation of leap seconds (maximum of two in one year). The above formulae contain implicitly the Earth?s mean angular rotation omega in degrees per second [3.15]. Omega (rad/sec)=(1.002737909350795+5.9006 x 10E-11 T -5.9 x 10E-15 Texp(2)) x 2 PI/86400 sec 12.1.3.6. Geocentric Coordinate Time (TCG) Geocentric Coordinate Time TCG represents the time coordinate of a four dimensional reference system and differs from TT by a constant scale factor yielding the relation TCG = TT + L_G (JD-2443144.5) x 86400 sec L_G = 6.9692903 x 10E-10 For practical reasons this equation can also be put into the following relation : TCG = TT + 2.2 s/cy x (year-1977.0) cy = century 12.1.3.7. Barycentric Coordinate Time (TCB) The Barycentric Coordinate Time TCB has been introduced to describe the motion of solar system objects in a non rotating relativistic frame centered at the solar system barycenter. TCB and TCG exhibit a rate difference which depends on the gravitational potential of the Sun at the mean Earth-Sun distance 1 AU and the Earth?s orbital velocity. The accumulated TCB-TT time difference amounts to roughly 11 s around epoch J2000. TCB = TCG + L_C (JD-2443144.5) x 86400 sec +P (Mc Carthy 1996) and P approximately +0.0016568 sec x sin(35999.37 degree T + 357.5 degree) +0.0000224 sec x sin(32964.5 degree T + 246 degree) +0.0000138 sec x sin(71998.7 degree T + 355 degree) + 0.0000048 sec x sin(3034.9 degree T +25 degree) + +0.0000047 x sin (34777.3 degree T +230 degree) T=(JD-2451545.0)/36525 L_c = 1.4808268457 x 10E-8 The largest contribution is given by the first term. When neglecting the other terms we can approximate P by: P = 0.001658 s sin(g) + 0.000014 s sin(2g) 12.1.3.8. Julian Date (JD) In astronomical computations, a continuous day count is used which avoids the usage of a calendar. The Julian Date (JD) is the number of days since noon January 1, 4712 BC including fractions of the day. 12.1.3.9. Modified Julian Date (MJD) Since the JD has become such a large number, the Modified Julian Date was introduced for convenience. JD was reset at November 17 th 1858 which leads to the following equation : MJD=JD-2400000.5 days Note that the count for MJD starts at midnight . 12.2. Time formats 12.2.1. ISO Time Format In our data and label files we use UTC time to measure the time the data were recorded at the ground station in the PDS compliant ISO/DIS 8601 standard format CCYY-MM-DDTHH:MM:SS.sss. (Example: 2004-06-21T025208.000 corresponds to the date 21.6.2004 and the time of day 2:52:08.000). 12.2.2. Time in Fractions of Days of Year This is the UTC time in the format fraction of days of year starting with the first day of year the data was recorded at 00:00.000 UTC. (Example: 2003-07-01T18:03:02.000 in ISO format corresponds to 182.752106 in fraction of days since the 1 st July was the 182th day of the year 2003.) This format is only used in the data files. 12.2.3. Ephemeris Time Format Ephemeris time is given in seconds starting with the 1 st January 2000 at 12:00:00.000 TBD (see also section 12.1.2 ). 13 Appendix 13.1. IFMS Configuration File Explanation lineabreviationpossible valuedescription 1 station_id NN12 2 spacecraft_id MEX1 3 data_set_kind OP 4 dap_type D1 5 ref_time_tag 20030702.001055.000 6 first_sample_time 20030702.002114.000 7 last_sample_time 20030702.021414.000 8 requestor_id STC 9 requested_id 1 10 why_opend Conf_Changed 11 total_samples 6781 12 sample_period 1. 13 internal_reference No 14 uplink_carrier_230 Yes 15 actual_carrier_indic 3067833783. 16 actual_tone_indic - 17 epd_source 0 18 rg_data_corrected No 19 sequence_id 3 20 LogMaxEv N/A in input Data Maximum number of logged events 21 LogDebugMode N/A in input Data Select `Debug` logging level 22 Dsp_MetPresent N/A in input Data Meteorological Unit present 23 Dsp_UlmPresent N/A in input Data Up-Link Modulator present 24 Dsp_Cf1Present N/A in input Data Common Front End #1 present 25 Dsp_Cf2Present N/A in input Data Common Front End #1 present 26 Dsp_DcePresent N/A in input Data Diverstity Combination Estimator present and GDSP 27 Dsp_RgdPresent N/A in input Data Ranging Demodulator present and GDSP 28 Dsp_RcdPresent N/A in input Data Remnant Carrier Demodulator present and GDSP 29 Dsp_ScdPresent N/A in input Data Suppressed Carrier Demodulator present and GDSP 30 Dsp_TcdsPresent N/A in input Data Telemetry Channel Decoder System present and GDSP 31 UlmCarFrSel "230MHz" Up-Link Modulator Carrier Output Frequency 32 UlmCarFrOffs 0 Up-Link Modulator Carrier Output Frequency Offset 33 UlmCarNomLvl 4 Up-Link Modulator Carrier Nominal output level 34 UlmCarTstOut No Up-Link Modulator Carrier Test output selection 35 UlmCarTstLvl 0.0 Up-Link Modulator Carrier Test output attenuation 36 UlmCarSpecInv No 37 UlmSwpDelStF 0 Up-Link Modulator Carrier Sweep: Delta Start Frequency 38 UlmSwpDelSpF 0 Up-Link Modulator Carrier Sweep: Delta Stop Frequency 39 UlmSwpRate 1 Up-Link Modulator Carrier Sweep: sweep rate 40 UlmSwpAccFact 1 Up-Link Modulator Carrier Sweep: acceleration factor 41 UlmPrior No Up-Link Modulator Carrier modulation TC priority selection 42 UlmTcSrc "TCE1" Up-Link Modulator TC data source 43 UlmTcDataCoding "NRZ-L" Up-Link Modulator TC data coding 44 UlmTcTceMode "Normal" Up-Link Modulator TC TCE mode 45 UlmTcModIdx_Ana 0.0000 Up-Link Modulator TC modulation index for analogue source 46 UlmTcModIdx_Dig 1.000 Up-Link Modulator TC modulation index for digital source 47 UlmTcMod "PM on sub-carrier" Up-Link Modulator TC modulation mode 48 UlmTcRCBRateN 1 Up-Link Modulator TC bit-rate numerator in RC modes (1=>integer mode) 49 UlmTcRCBRateD 8 Up-Link Modulator TC bit-rate denominator in RC modes 50 UlmTcSCBRateP 100.00 Up-Link Modulator TC P-channel bit-rate in SC modes 51 UlmTcSCBRateQ 100.00 Up-Link Modulator TC Q-channel bit-rate (U-QPSK only) 52 UlmTcUnbalRatio -15.0 Up-Link Modulator TC modulation unbalance ratio (U-QPSK only) 53 UlmTcSqWavSubc No Up-Link Modulator TC square-wave subcarrier selection (RC only) 54 UlmTcRCBRateSel No Up-Link Modulator TC irrational bit-rate selection for RC modes 55 UlmTcRCIrrBRate 2000.00 Up-Link Modulator TC irrational bit-rate for RC modes 56 UlmTcSubF 16000 Up-Link Modulator TC sub-carrier frequency 57 UlmRampTime 0.00 Up-Link Modulator TC & Tone modulation index ramp time (0=> no ramp) 58 UlmTestPat N/A in input Data Up-Link Modulator Test bit pattern selection 59 Cf1Input N/A in input Data Common Front End 1 Input selection 60 CfeAgcCst N/A in input Data Common Front End 1&2 AGC Time Constant 61 CfeAgcHead N/A in input Data Common Front End 1&2 AGC Head room 62 Cf1AGain N/A in input Data Common Front End 1 Channel A gain (used if CfeAgcCst is 0) 63 Cf1BGain N/A in input Data Common Front End 1 Channel B gain (used if CfeAgcCst is 0) 64 Cf1Dither N/A in input Data Common Front End 1 Dither noise enabled 65 Cf2Input N/A in input Data Common Front End 2 Input selection 66 Cf2AGain N/A in input Data Common Front End 2 Channel A gain (used if CfeAgcCst is 0) 67 Cf2BGain N/A in input Data Common Front End 2 Channel B gain (used if CfeAgcCst is 0) 68 Cf2Dither N/A in input Data Common Front End 2 Dither noise enabled 69 DceFreqPlan N/A in input Data Diverstity Combination Estimator Frequency plan selection 70 DceInput N/A in input Data Diverstity Combination Estimator Input selection 71 DceExpCN0Avail N/A in input Data Diverstity Combination Estimator Expected C/No available 72 DceExpCN0 N/A in input Data Diverstity Combination Estimator Expected C/No 73 DceCFrUnc N/A in input Data Diverstity Combination Estimator Carrier frequency uncertainty 74 DceCFrRateUnc N/A in input Data Diverstity Combination Estimator Carrier frequency rate uncertainty 75 DceCAcqMode N/A in input Data Diverstity Combination Estimator Acquisition Mode (SC: sweep, RC: FFT1) 76 DceUseAcq N/A in input Data Diverstity Combination Estimator Use acquisition for initial phase estimate 77 DceCorrBw N/A in input Data Diverstity Combination Estimator Correlation bandwidth 78 DceEstMode N/A in input Data Diverstity Combination Estimator Estimator mode 79 DceAngPreSt N/A in input Data Diverstity Combination Estimator Polarisation angle rate pre-steer 80 DceModRemov N/A in input Data Diverstity Combination Estimator Modulation removal 81 DceFftCentre N/A in input Data Diverstity Combination Estimator slow FFT: centre frequency 82 DceFftSpan N/A in input Data Diverstity Combination Estimator slow FFT: span ratio (actual span is 17.5 MHz / N) 83 DceAna_0 N/A in input Data Diverstity Combination Estimator Analogue driver 84 DceAna_1 N/A in input Data Diverstity Combination Estimator Complex analogue source 85 DceAna_2 N/A in input Data Diverstity Combination Estimator Real analogue source 86 RgdSpecInv No Ranging Demodulator Spectrum inversion 87 RgdUplkConv 6936988810 Ranging Demodulator Up-link carrier conversion 88 RgdCoherTrs Yes Ranging Demodulator Coherent transponder 89 RgdTR1 880 Ranging Demodulator Spacecraft coherent transponder ration numerator 90 RgdTR2 749 Ranging Demodulator Spacecraft coherent transponder ration denominator 91 RgdDnlkCF 8420429800 Ranging Demodulator Spacecraft non-coherent down-link carrier freq. 92 RgdDnlkConv 8350165420 Ranging Demodulator Down-link carrier conversion 93 RgdPolarisation "Combined" 94 RgdPhEst 0.00 Ranging Demodulator Manual phase estimate 95 RgdPostProc 1 Ranging Demodulator Post-processing 96 RgdExpCN0Avail Yes Ranging Demodulator Expected C/No available 97 RgdExpCN0 46 Ranging Demodulator Expected C/No 98 RgdCFrUnc 1000000 Ranging Demodulator Carrier frequency uncertain 99 RgdCFrRateUnc 1000 Ranging Demodulator Carrier frequency rate uncertain 100 RgdCAcqMode "FFT2" Ranging Demodulator Carrier acquisition 101 RgdUseAcq Yes Ranging Demodulator Use acquisition for initial phase estimate 102 RgdCLpNoBw 300.0 Ranging Demodulator Carrier loop noise bandwidth (2BL) 103 RgdCLpOrder 2 Ranging Demodulator Carrier loop order 104 RgdCLpPhEst "RCD" Ranging Demodulator Carrier loop phase estimator 105 RgdCLp_ChgDel "STEP" Ranging Demodulator Carrier loop ? Change delay 106 RgdTLpBw 1.260 Ranging Demodulator Tone loop bandwidth 107 RgdTLPreSt Yes Ranging Demodulator Tone loop Doppler presteering enable 108 RgdTLp_ChgDel "STEP" Ranging Demodulator Tone loop ? Change delay 109 RgdAna_0 N/A in input Data Ranging Demodulator Analogue driver 110 RgdAna_1 N/A in input Data Ranging Demodulator Complex analogue source 111 RgdAna_2 N/A in input Data Ranging Demodulator Real analogue source 112 RcdSpecInv No Remnant Carrier Demodulator Spectrum inversion 113 RcdUplkConv 6936988810 Remnant Carrier Demodulator Up-link carrier conversion 114 RcdCoherTrs Yes Remnant Carrier Demodulator Ciherent transponder 115 RcdTR1 880 Remnant Carrier Demodulator Spacecraft coherent transponder ratio numerator 116 RcdTR2 749 Remnant Carrier Demodulator Spacecraft coherent transponder ratio denominator 117 RcdDnlkCF 8420429800 Remnant Carrier Demodulator Spacecraft non-coherent down-link carrier freq. 118 RcdDnlkConv 8350165420 Remnant Carrier Demodulator Down-link carrier conversion 119 RcdPolarisation "Combined" 120 RcdPhEst 0.00 Remnant Carrier Demodulator Manual phase estimate 121 RcdPostProc 1 Remnant Carrier Demodulator Post-processing 122 RcdExpCN0Avail Yes Remnant Carrier Demodulator Expected C/No available 123 RcdExpCN0 46 Remnant Carrier Demodulator Expected C/No 124 RcdCFrUnc 1000000 Remnant Carrier Demodulator Carrier frequency uncertainty 125 RcdCFrRateUnc 1000 Remnant Carrier Demodulator Carrier frequency rate uncertainty 126 RcdCAcqMode "FFT2" Remnant Carrier Demodulator acquisition mode (FFT1 recommended) 127 RcdUseAcq Yes Remnant Carrier Demodulator Use acquisition for initial phase estimate 128 RcdCLpNoBw 100.0 Remnant Carrier Demodulator Carrier loop noise bandwidth (2BL) 129 RcdCLpOrder 2 Remnant Carrier Demodulator Carrier loop order 130 RcdCLpPhEst "RCD" Remnant Carrier Demodulator Carrier loop phase estimator 131 RcdCLp_ChgDel "STEP" Remnant Carrier Demodulator Carrier loop ? Change delay 132 RcdTLpBw 0.00010 Remnant Carrier Demodulator Timing loop bandwidth (2BL) 133 RcdTLpOrder 2 Remnant Carrier Demodulator Timing loop order 134 RcdTLpPhEst "DD" Remnant Carrier Demodulator Clock loop estimator 135 RcdTLp_ChgDel "STEP" Remnant Carrier Demodulator Timing loop ? Change delay 136 RcdSCLpFreq 0 Remnant Carrier Demodulator Subcarrier loop nominal subcarrier frequency 137 RcdSCLpPreSt No Remnant Carrier Demodulator Subcarrier loop Subcarrier loop enable pre-steering 138 RcdSCLpBw 0.00010 Remnant Carrier Demodulator Subcarrier loop bandwidth 139 RcdSCLpModInd 1.10 Remnant Carrier Demodulator Subcarrier loop expected modulation index 140 RcdSCLpPhEst "Decision directed" Remnant Carrier Demodulator Subcarrier loop phase est. Mode (NDA if Es/No<-2dB) 141 RcdSCLpAcq "None" Remnant Carrier Demodulator Subcarrier loop acquisition strategy 142 RcdSCLpBitNum 1 Remnant Carrier Demodulator Subcarrier loop bit clock numerator 143 RcdSCLpBitDen 1 Remnant Carrier Demodulator Subcarrier loop bit clock denominator 144 RcdSCLpSqWavSc Yes Remnant Carrier Demodulator Subcarrier loop square wave subcarrier 145 RcdSCLpSRateUsed Yes Remnant Carrier Demodulator Subcarrier loop symbol rate used 146 RcdSCLpSRate 419430.40 Remnant Carrier Demodulator Subcarrier loop symbol rate 147 RcdSCLpDecodMode "NRZ-L" Remnant Carrier Demodulator Subcarrier loop decoding mode 148 RcdSCLp_ChgDel "STEP" Remnant Carrier Demodulator Subcarrier loop ? Change delay 149 RcdAna_0 N/A in input Data Remnant Carrier Demodulator Analogue driver 150 RcdAna_1 N/A in input Data Remnant Carrier Demodulator Complex analogue source 151 RcdAna_2 N/A in input Data Remnant Carrier Demodulator Real analogue source 152 ScdSpecInv No Suppressed Carrier Demodulator Spectrum inversion 153 ScdUplkConv 1000000000 Suppressed Carrier Demodulator Up-link carrier conversion 154 ScdCoherTrs No Suppressed Carrier Demodulator Coherent transponder 155 ScdTR1 1 Suppressed Carrier Demodulator Spacecraft coherent transponder ratio numerator 156 ScdTR2 1 Suppressed Carrier Demodulator Spacecraft coherent transponder ratio denominator 157 ScdDnlkCF 1000000000 Suppressed Carrier Demodulator Spacecraft non-coherent down-link carrier freq. 158 ScdDnlkConv 1000000000 Suppressed Carrier Demodulator Down-link carrier conversion 159 ScdPolarisation "X" 160 ScdPhEst 0.00 Suppressed Carrier Demodulator Manual phase estimate 161 ScdPostProc 1 Suppressed Carrier Demodulator Post.processing 162 ScdExpCN0Avail No Suppressed Carrier Demodulator Expected C/No available 163 ScdExpCN0 6 Suppressed Carrier Demodulator Expected C/No 164 ScdCFrUnc 0 Suppressed Carrier Demodulator Carrier frequency uncertainty 165 ScdCFrRateUnc 0 Suppressed Carrier Demodulator Carrier frequency rate uncertainty 166 ScdCAcqMode "Sweep" Suppressed Carrier Demodulator Carrier acquisition mode (Sweep recommanded) 167 ScdUseAcq No Suppressed Carrier Demodulator Use acquisition for initial phase estimate 168 ScdCLpNoBw 0.1 Suppressed Carrier Demodulator Carrier loop Noise bandwidth (2BL) 169 ScdCLpOrder 1 Suppressed Carrier Demodulator Carrier loop order 170 ScdCLpPhEst "RCD" Suppressed Carrier Demodulator Carrier loop phase estimator 171 ScdCLp_ChgDel "STEP" Suppressed Carrier Demodulator Carrier loop ? Change delay 172 ScdTLpBw 0.00001 Suppressed Carrier Demodulator Timing loop bandwidth (2BL) 173 ScdTLpOrder 1 Suppressed Carrier Demodulator Timing loop order 174 ScdTLpPhEst "DD" Suppressed Carrier Demodulator Clock loop estimator 175 ScdTLp_ChgDel "STEP" Suppressed Carrier Demodulator Timing loop ? Change delay 176 ScdModFormat "off" Suppressed Carrier Demodulator Modulation format 177 ScdModPRate 100 Suppressed Carrier Demodulator Modulation P symbol rate 178 ScdModQRate 100 Suppressed Carrier Demodulator Modulation Q symbol rate (only for U-QPSK) 179 ScdModExpBalAv No Suppressed Carrier Demodulator Modulation expected balance ratio available 180 ScdModExpBal 1.0 Suppressed Carrier Demodulator Modulation expected balance ratio 181 ScdModIChCoding "NRZ-L" Suppressed Carrier Demodulator Modulation I Channel Coding 182 ScdModQChCoding "NRZ-L" Suppressed Carrier Demodulator Modulation Q Channel Coding 183 ScdMchPulse No Suppressed Carrier Demodulator match filter: pulse shaped selection 184 ScdMchCosine No Suppressed Carrier Demodulator match filter: root raise cosine selection 185 ScdMchExcBw 20 Suppressed Carrier Demodulator match filter: excess bandwidth 186 ScdAna_0 N/A in input Data Suppressed Carrier Demodulator Analogue driver 187 ScdAna_1 N/A in input Data Suppressed Carrier Demodulator Complex analogue source 188 ScdAna_2 N/A in input Data Suppressed Carrier Demodulator Real analogue source 189 D1Dur 72000 Doppler 1 Data Acquisition Process: default duration 190 D1SplPer "1" D1 Data Acquisition Process: sampling period 191 D1MaxDs 10000 Doppler 1 Data Acquisition Process: maximum samples per data-set 192 D1DSetKind "OP" Doppler 1 Data Acquisition Process: data-set kind (2 characters used) 193 D1Source "RGD" Doppler 1 Data Acquisition Process: source 194 D2Dur 72000 Doppler 2 Data Acquisition Process: default duration 195 D2SplPer "1" Doppler 2 Data Acquisition Process: sampling period 196 D2MaxDs 10000 Doppler 2 Data Acquisition Process: maximum samples per data-set 197 D2DSetKind "OP" Doppler 2 Data Acquisition Process: data-set kind (2 characters used) 198 D2Source "RCD" Doppler 2 Data Acquisition Process: source 199 G1Dur 72000 AGC 1 Data Acquisition Process: default duration 200 G1SplPer 1.0 AGC 1 Data Acquisition Process: sampling period 201 G1MaxDs 10000 AGC 1 Data Acquisition Process: maximum samples per data-set 202 G1DSetKind "OP" AGC 1 Data Acquisition Process: data-set kind (2 characters used) 203 G1Source "RCD" AGC 1 Data Acquisition Process: source 204 G2Dur 72000 AGC 2 Data Acquisition Process: default duration 205 G2SplPer 1.0 AGC 2 Data Acquisition Process: sampling period 206 G2MaxDs 10000 AGC 2 Data Acquisition Process: maximum samples per data-set 207 G2DSetKind "OP" AGC 2 Data Acquisition Process: data-set kind (2 characters used) 208 G2Source "RGD" AGC 2 Data Acquisition Process: source 209 MeDur 72000 Meteo Data Acquisition Process: default duration 210 MeSplPer 60 Meteo Data Acquisition Process: sampling period 211 MeMaxDs 10000 Meteo Data Acquisition Process: maximum samples per data-set 212 MeDSetKind "OP" Meteo Data Acquisition Process: data-set kind (2 characters used) 213 RgDur 72000 Ranging Data Acquisition Process: default duration 214 RgSplPer 1 Ranging Data Acquisition Process: sampling period 215 RgMaxDs 10000 Ranging Data Acquisition Process: maximum samples per data-set 216 RgDSetKind "OP" Ranging Data Acquisition Process: data-set kind (2 characters used) 217 RgToneF 1061683.200 Ranging Data Acquisition Process: nominal tone frequency 218 RgToneTxModInd 0.7 Ranging Data Acquisition Process: transmitted tone modulation index 219 RgToneRxModInd 0.2 Ranging Data Acquisition Process: expected received tone modulation index 220 RgToneInteg 1.0 Ranging Data Acquisition Process: tone integration time 221 RgToneSettl 1.0 Ranging Data Acquisition Process: tone settling time 222 RgCodeModInd "High&Low" Ranging Data Acquisition Process: code modulation index 223 RgCodeMax 14 Ranging Data Acquisition Process: maximum code length 224 RgCodeInteg 0.5 Ranging Data Acquisition Process: code integration time 225 RgCodeRestart Yes Ranging Data Acquisition Process: code sequence immediate restart 226 RgCodeRepet No Ranging Data Acquisition Process: repetitive code sequence 227 Epd 13.33 Expected propagation delay 228 EpdDer 0.000020099 Expected propagation delay derivative 229 EpdTime "19700101.000000.000" Time of given Epd 230 StationId "NN12" Station identifier (4 characters used) 231 MissionId "MEX1" Mission identifier (8 characters used) 232 SpacecraftId "MEX1" Spacecraft identifier (4 characters used) 233 AdsdAct N/A in input Data Data-set deletion: enabled 234 AdsdDelay N/A in input Data Data-set deletion: Delay between runs 235 AdsdMaxAge N/A in input Data Data-set deletion: maximum age for data-sets 236 AdsdPercen N/A in input Data Data-set deletion: maximum percentage used 237 AdsdMaxSupLog N/A in input Data Data-set handling: maximum support log entries 238 NESim_Duration N/A in input Data Near-Earth Simulation: Duration (around Zenith) 239 NESim_Height N/A in input Data Near-Earth Simulation: Spacecraft altitude 240 NESim_Speed N/A in input Data Near-Earth Simulation: Spacecraft speed 241 NESim_CoherMode N/A in input Data Near-Earth Simulation: Caoherent mode 242 DSSim_Duration N/A in input Data Deep-Space Simulation: Duration 243 DSSim_RefTime N/A in input Data Deep-Space Simulation: Reference time 244 DSSim_Offset N/A in input Data Deep-Space Simulation: Frequency offset (at RefTime) 245 DSSim_DpRate N/A in input Data Deep-Space Simulation: Doppler rate 246 DSSim_EarthPhase N/A in input Data Deep-Space Simulation: Earth rotation phase (at RefTime) 247 DSSim_EarthPer N/A in input Data Deep-Space Simulation: Earth rotation period 248 DSSim_EarthAmp N/A in input Data Deep-Space Simulation: Earth rotation freq. Amplitude 249 DCal_MeasL N/A in input Data Delay calibration: Left-Hand circular measurement 250 DCal_MeasR N/A in input Data Delay calibration: Right-Hand circular measurement 251 DCal_CorrL N/A in input Data Delay calibration: Left-Hand circular correction 252 DCal_CorrR N/A in input Data Delay calibration: Right-Hand circular correction 253 DCal_Calib N/A in input Data Delay calibration: Delay Calibration 254 StatLat N/A in input Data Station latitude 255 StatLong N/A in input Data Station longitude 256 StatHeight N/A in input Data Station height 257 EarthMeanRadius N/A in input Data Doppler Prediction: Mean radius of earth model 258 EarthInvFlatCoef N/A in input Data Doppler Prediction: Inverse flattening coef. of earth model 259 DpPredDur N/A in input Data Doppler Prediction: Default duration