ROSETTA Radio Science Investigations RSI
MARS EXPRESS Radio Science Experiment MaRS
VENUS EXPRESS Radio Science Experiment VeRa
Document name: File Naming Convention
=====================================
ROS-RSI-IGM-IS-3087
MEX-MRS-IGM-IS-3016
VEX-VRA-IGM-IS-3009
==============================
Appendix A: Example PDS Labels
==============================
Structure of this file:
MEX-MRS-IGM-IS-3016_APP_A.ASC
|
|-- DSN ODF products
| |
| |--Level 1a
| |
| |--Level 1b
| |
| |--Level 02
|
|--DSN RSR products
| |
| |--Level 1a
| |
| |--Level 02
|
|
|--IFMS closed-loop products
| |
| |--Level 1a
| |
| |--Level 1b
| |
| |--Level 02
|
|--IFMS open-loop
|
|--Level 1a
|
|--Level 02
DSN ODF products
================
Level 1a
========
------------------------------------------------------------------------------
PDS_VERSION_ID = PDS3
DATA_SET_ID = MEX-M-MRS-1/2/3-MCO-0017-V1.0
TARGET = MARS
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
SPACECRAFT_ID = "MEX"
MISSION_PHASE_NAME = "COMMISSIONING"
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE"
INSTRUMENT_ID = "MRS"
PRODUCER_ID = "JPL"
DSN_STATION_NUMBER = {55,65}
PRODUCT_CREATION_TIME = 2004-04-03T00:13:07
STANDARD_DATA_PRODUCT_ID = "ODF"
PRODUCT_ID = "M55ODF0L1A_DPX_040920917_00.LBL"
ORIGINAL_PRODUCT_ID = "4092093A.ODF"
SOFTWARE_NAME = "rkmerge"
DESCRIPTION = "Orbit Data Files (ODFs) are
produced by the NASA/JPL Multi-Mission Navigation Radio
Metric Data Conditioning Team for use in determining
spacecraft trajectories, gravity fields affecting them,
and radio propagation conditions. Each ODF consists of
many 36-byte logical records, which fall into 7 primary
groups plus an End-of-File Group. An ODF usually
contains most groups, but may not have all. The first
record in each of the 7 primary groups is a header
record; depending on the group, there may be from zero
to many data records following each header. The ODF is
described in JPL/DSN Document 820-13, TRK-2-18
(various versions, with significant changes in April
1997). The applicable version may be included as file
TRK_2_18.TXT in the DOCUMENT directory of this archive."
^ODF1A_TABLE = ("4092093A.ODF",1)
^ODF1B_TABLE = ("4092093A.ODF",2)
^ODF2A_TABLE = ("4092093A.ODF",3)
^ODF2B_TABLE = ("4092093A.ODF",4)
^ODF3A_TABLE = ("4092093A.ODF",5)
^ODF3C_TABLE = ("4092093A.ODF",6)
^ODF4A55_TABLE = ("4092093A.ODF",896)
^ODF4B55_TABLE = ("4092093A.ODF",897)
^ODF4A65_TABLE = ("4092093A.ODF",912)
^ODF4B65_TABLE = ("4092093A.ODF",913)
^ODF8A_TABLE = ("4092093A.ODF",942)
^ODF8B_TABLE = ("4092093A.ODF",943)
OBJECT = FILE
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 36
FILE_RECORDS = 1119
START_TIME = 2004-04-01T09:17:27
STOP_TIME = 2004-04-02T21:58:58
OBJECT = ODF1A_TABLE
NAME = "FILE LABEL GROUP HEADER"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 4
ROW_BYTES = 16
ROW_SUFFIX_BYTES = 20
DESCRIPTION = "The File Label Group
is usually the first of several groups of records in
an Orbit Data File (ODF). It identifies the spacecraft,
the file creation time, the hardware, and the software
associated with the ODF. The File Label Group Header
is the first record in the File Label Group. It is one
36-byte record and is followed by one 36-byte data
record. Occasionally, the File Label Group is omitted
from an ODF. The row suffix bytes in the File Label
Group Header are set to 0."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "PRIMARY KEY"
DATA_TYPE = MSB_INTEGER
START_BYTE = 1
BYTES = 4
DESCRIPTION = "Item 1: The Primary Key indicates the type
of data records to follow. In the File Label Group Header
this field is set to 101."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "SECONDARY KEY"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Item 2: The Secondary Key is not used in
the ODF. It is set to 0."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "LOGICAL RECORD LENGTH"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 9
BYTES = 4
UNIT = PACKET
DESCRIPTION = "Item 3: The Logical Record Length gives the
number of 36-byte physical records making up each logical
record in a File Label Group data record. For the File Label
Group it is set to 1."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "GROUP START PACKET NUMBER"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The Group Start Packet Number
gives the number of the ODF packet containing the File
Label Group Header. Set to 0, since the File Label Group
Header, when it appears, is always first."
END_OBJECT = COLUMN
END_OBJECT = ODF1A_TABLE
OBJECT = ODF1B_TABLE
NAME = "FILE LABEL GROUP DATA"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 7
ROW_BYTES = 36
DESCRIPTION = "The File Label Group
is usually the first of several groups of records in
an Orbit Data File (ODF). It identifies the spacecraft,
the file creation time, the hardware, and the software
associated with the ODF. The File Label Group data
record is the second record in the File Label Group. It
is one 36-byte record and is preceded by one 36-byte
File Label Group header record. Occasionally, the File
Label Group is omitted from an ODF."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "SYSTEM ID"
DATA_TYPE = CHARACTER
START_BYTE = 1
BYTES = 8
DESCRIPTION = "Items 1-8: A character string identifying
the hardware on which the ODF was created."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "PROGRAM ID"
DATA_TYPE = CHARACTER
START_BYTE = 9
BYTES = 8
DESCRIPTION = "Items 9-16: A character string identifying
the program under which the ODF was created."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "SPACECRAFT ID"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 17
BYTES = 4
DESCRIPTION = "Item 17: ID number for the spacecraft. These
are specified in DSN document OPS-6-8. Representative
values include
Magellan 18
Voyager 1 31
Voyager 2 32
Clementine 64
Galileo Orbiter 77
Mars Global Surveyor 94"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "FILE CREATION DATE"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 21
BYTES = 4
DESCRIPTION = "Item 18: The date on which the ODF was
created, given as a single number of the form YYMMDD.
where
YY is the two least significant digits of the year
MM is the month (01 through 12)
DD is the day of month (01 through 31)"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 5
NAME = "FILE CREATION TIME"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 25
BYTES = 4
DESCRIPTION = "Item 19: The time at which the ODF was
created, given as a single number of the form HHMMSS.
where
HH is the two-digit hour (00 through 23)
MM is the two-digit minute (00 through 59)
SS is the two-digit second (00 through 59)"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 6
NAME = "FILE REFERENCE DATE"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 29
BYTES = 4
DESCRIPTION = "Item 20: The reference date for ODF
time tags -- for example, 19500101
for EME50. Older files which have
reference dates of zero will be
assumed to be EME50."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 7
NAME = "FILE REFERENCE TIME"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 33
BYTES = 4
DESCRIPTION = "Item 21: The reference time for ODF
time tags. Set to 000000."
END_OBJECT = COLUMN
END_OBJECT = ODF1B_TABLE
OBJECT = ODF2A_TABLE
NAME = "IDENTIFIER GROUP HEADER"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 4
ROW_BYTES = 16
ROW_SUFFIX_BYTES = 20
DESCRIPTION = "The Identifier Group
is usually the second of several groups of records in
an Orbit Data File (ODF). It is sometimes used to
identify contents of data records that follow. The
Identifier Group Header is the first record in the
Identifier Group. It is one 36-byte record and is
followed by one 36-byte Identifier Group data record.
Occasionally the Identifier Group is omitted from an
ODF. The row suffix bytes in the Identifier Group
Header are set to 0."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "PRIMARY KEY"
DATA_TYPE = MSB_INTEGER
START_BYTE = 1
BYTES = 4
DESCRIPTION = "Item 1: The Primary Key indicates the type
of data records to follow. In the Identifier Group Header
this field is set to 107."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "SECONDARY KEY"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Item 2: The Secondary Key is not used in
the ODF. It is set to 0."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "LOGICAL RECORD LENGTH"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 9
BYTES = 4
UNIT = PACKET
DESCRIPTION = "Item 3: The Logical Record Length gives the
number of 36-byte physical records making up each logical
record in an Identifier Group data record. For the
Identifier Group it is set to 1."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "GROUP START PACKET NUMBER"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The Group Start Packet Number
gives the number of the ODF packet containing the
Identifier Group Header. Usually set to 2, since the
Identifier Group usually follows the Label Group
immediately in the ODF."
END_OBJECT = COLUMN
END_OBJECT = ODF2A_TABLE
OBJECT = ODF2B_TABLE
NAME = "IDENTIFIER GROUP DATA"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 3
ROW_BYTES = 36
DESCRIPTION = "The Identifier Group
is usually the second of several groups of records in
an Orbit Data File (ODF). It is sometimes used to
identify contents of data records that follow. The
Identifier Group data record is the second record in
the Identifier Group. It is one 36-byte record and is
preceded by one 36-byte Identifier Group header record.
Occasionally the Identifier Group is omitted from an
ODF."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "ITEM 1"
DATA_TYPE = CHARACTER
START_BYTE = 1
BYTES = 8
DESCRIPTION = "Item 1: A character string sometimes used to
identify contents of data records to follow. Often the
ASCII characters 'TIMETAG' followed by one ASCII 'blank'."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "ITEM 2"
DATA_TYPE = CHARACTER
START_BYTE = 9
BYTES = 8
DESCRIPTION = "Item 2: A character string sometimes used to
identify contents of data records to follow. Often the
ASCII characters 'OBSRVBL' followed by one ASCII 'blank'."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "ITEM 3"
DATA_TYPE = CHARACTER
START_BYTE = 17
BYTES = 20
DESCRIPTION = "Item 3: A character string sometimes used to
identify contents of data records to follow. For example,
ASCII characters 'OD-SAMPL-ID FRQ RSD '."
END_OBJECT = COLUMN
END_OBJECT = ODF2B_TABLE
OBJECT = ODF3A_TABLE
NAME = "ORBIT DATA GROUP HEADER"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 4
ROW_BYTES = 16
ROW_SUFFIX_BYTES = 20
DESCRIPTION = "The Orbit Data Group
is usually the third of several groups of records in an
Orbit Data File (ODF). It contains the majority of the
data included in the file. The Orbit Data Group Header
is the first record in the Orbit Data Group; it is
usually followed by many Orbit Data Group data records,
ordered by time. All records in the Orbit Data Group
have 36 bytes. The row suffix bytes in the Orbit Data
Group Header are set to 0. This Orbit Data Group
follows TRK-2-18, version of 1 August 1996."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "PRIMARY KEY"
DATA_TYPE = MSB_INTEGER
START_BYTE = 1
BYTES = 4
DESCRIPTION = "Item 1: The Primary Key indicates the
type of data records to follow. In the Orbit Data
Group Header this field is set to 109."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "SECONDARY KEY"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Item 2: The Secondary Key is not used in
the ODF. It is set to 0."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "LOGICAL RECORD LENGTH"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 9
BYTES = 4
UNIT = PACKET
DESCRIPTION = "Item 3: The Logical Record Length gives the
number of 36-byte physical records making up each logical
record in an Orbit Data Group data record. For the Orbit
Data Group it is set to 1."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "GROUP START PACKET NUMBER"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The Group Start Packet Number
gives the number of the ODF packet containing the
Orbit Data Group Header. Since the Orbit Data Group
usually follows immediately after the File Label Group
and the Identifier Group, it is usually set to 4."
END_OBJECT = COLUMN
END_OBJECT = ODF3A_TABLE
OBJECT = ODF3C_TABLE
NAME = "ORBIT DATA GROUP DATA"
INTERCHANGE_FORMAT = BINARY
ROWS = 890
COLUMNS = 6
ROW_BYTES = 36
DESCRIPTION = "The Orbit Data Group
is usually the third of several groups of records in an
Orbit Data File (ODF). It contains the majority of the
data included in the file. The Orbit Data Group Header
is the first record in the Orbit Data Group; it is
usually followed by many Orbit Data Group data records,
ordered by time. All records in the Orbit Data Group
have 36 bytes. Their format and content follows the
specification in TRK-2-18, version of 1 August 1996."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "TIME TAG - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 1
BYTES = 4
UNIT = SECOND
DESCRIPTION = "Item 1: The integer part of the record
time tag, measured from 0 hours UTC on 1 January 1950.
The fractional part of the time tag is in Item 2."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "ITEMS 2-3"
DATA_TYPE = MSB_BIT_STRING
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Items 2-3 of the ODF."
OBJECT = BIT_COLUMN
NAME = "TIME TAG - FRACTIONAL PART"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 1
BITS = 10
UNIT = MILLISECOND
DESCRIPTION = "Item 2: The fractional part of the record
time tag (see Column 1)."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "PRIMARY RECEIVING STATION DOWNLINK DELAY"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 11
BITS = 22
UNIT = NANOSECOND
DESCRIPTION = "Item 3: Downlink delay for the primary
receiving station."
END_OBJECT = BIT_COLUMN
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "OBSERVABLE - INTEGER PART"
DATA_TYPE = MSB_INTEGER
START_BYTE = 9
BYTES = 4
DESCRIPTION = "Item 4: The integer part of the observable.
The fractional part is in Column 4 (Item 5). See Item
10 for the data type stored in these fields.
The Doppler observable (in Hertz) is computed according
to the following equation. The time tag tr is the
mid-point of the compression interval ti to tj.
Observable = [B/|B|]*[(Nj-Ni)/(tj-ti) - |Fb*K + B|]
where:
B = bias placed on receiver
Ni = Doppler count at time ti
Nj = Doppler count at time tj
ti = start time of interval
tj = end time of interval
K = spacecraft transponder turnaround ratio, which varies
with band used (see Item 11); set to
1 for S-band receivers
11/3 for X-band receivers
176/27 for Ku-band receivers
209/15 for Ka-band receivers
(Note: future spacecraft transponders may
require different values of K)
Fb = (X1/X2)*(X3*Fr + X4)
-Fsc + R3 for one-way Doppler
= (X1/X2)*(X3*Fr + X4)
-(T1/T2)*(T3*Ft + T4) for all other Doppler
where:
Fr = receiver (VCO) frequency at time tr
Fsc = spacecraft (beacon) frequency
Ft = transmitter frequency at time tr-RTLT
R3 = 0 for S-band receivers
= 0 for X-band receivers
= 0 for Ku-band receivers
= 0 for Ka-band receivers
T1 = 240 for S-band transmitters (see Item 12)
= 240 for X-band transmitters
= 142 for Ku-band transmitters
= 14 for Ka-band transmitters
T2 = 221 for S-band transmitters
= 749 for X-band transmitters
= 153 for Ku-band transmitters
= 15 for Ka-band transmitters
T3 = 96 for S-band transmitters
= 32 for X-band transmitters
= 1000 for Ku-band transmitters
= 1000 for Ka-band transmitters
T4 = 0 for S-band transmitters
= 6.5 10^9 for X-band transmitters
= -7.0 10^9 for Ku-band transmitters
= 1.0 10^10 for Ka-band transmitters
X1 to X4 have the same values as T1 to T4 but
are dependent on the exciter band (Item 13)
RTLT is the round-trip light time
For Doppler data the residual (sometimes called the
pseudo-residual) is the observed Doppler minus the predicted
Doppler
The range observable is computed as follows:
Observable = R - C + Z - S
where:
R = range measurement
C = station delay calibration
Z = Z correction, which is the delay resulting from DSN
station optics that is not included in routine closed
loop calibrations (C)
S = spacecraft delay"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "OBSERVABLE - FRACTIONAL PART"
DATA_TYPE = MSB_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 5: The fractional part of the
observable, scaled by 10^9. See DESCRIPTION under
Column 3 for details on definition."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 5
NAME = "ITEMS 6-19"
DATA_TYPE = MSB_BIT_STRING
START_BYTE = 17
BYTES = 12
DESCRIPTION = "Items 6-19 of the ODF."
OBJECT = BIT_COLUMN
NAME = "FORMAT ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 1
BITS = 3
DESCRIPTION = "Item 6: The Format ID. Set to 2. If this
value is 1, the ODF was created on or before 1997-04-14
and will not be accurately described by this set of
object definitions. If FORMAT ID = 1, see:
JPL/DSN Document 820-13; Rev A
DSN System Requirements
Detail Interface Design
TRK-2-18
DSN Tracking System Interfaces
Orbit Data File Interface
Mark IVA
Effective Date: May 15, 1984"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "PRIMARY RECEIVING STATION ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 4
BITS = 7
DESCRIPTION = "Item 7: The ID Number of the primary
Receiving Station."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "TRANSMITTING STATION ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 11
BITS = 7
DESCRIPTION = "Item 8: Transmitting Station ID Number.
Set to zero if quasar VLBI, one-way (Dippler, phase,
or range), or angles data."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "NETWORK ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 18
BITS = 2
DESCRIPTION = "Item 9: Network ID Number for primary
Receiving Station: Set to:
0 for DSN, Block V exciter
1 for other
2 for OTS (OVLBI Tracking Subnet, where
OVLBI is Orbiting VLBI)"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "DATA TYPE ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 20
BITS = 6
DESCRIPTION = "Item 10: Data Type ID Number.
Allowed data type values include:
01 = Narrowband spacecraft VLBI, Doppler mode; cycles
02 = Narrowband spacecraft VLBI, phase mode; cycles
03 = Narrowband quasar VLBI, Doppler mode; cycles
04 = Narrowband quasar VLBI, phase mode; cycles
05 = Wideband spacecraft VLBI; nanoseconds
06 = Wideband quasar VLBI; nanoseconds
11 = One-way Doppler; Hertz
12 = Two-way Doppler; Hertz
13 = Three-way Doppler; Hertz
21 = One-way total-count phase; cycles
22 = Two-way total-count phase; cycles
23 = Three-way total-count phase; cycles
36 = PRA Planetary operational discrete spectrum range;
range units
37 = SRA Planetary operational discrete spectrum range;
range units
41 = RE [GSTDN] Range; nanoseconds
51 = Azimuth angle; degrees
52 = Elevation angle; degrees
53 = Hour angle; degrees
54 = Declination angle; degrees
55 = X angle (where +X is east); degrees
56 = Y angle (where +X is east); degrees
57 = X angle (where +X is south); degrees
58 = Y angle (where +X is south); degrees
Notes: Some of the descriptions below refer to 'generic'
data types. These are defined as follows:
Data Types Generic Term
---------- ------------
01-06 VLBI
01-04 Narrowband VLBI
05-06 Wideband VLBI
03, 04, 06 Quasar
11-58 Tracking or TRK
01-58 Radiometric"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "DOWNLINK BAND ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 26
BITS = 2
DESCRIPTION = "Item 11: Downlink Band ID. Allowed
values include:
0 = Not applicable if angle data,
Ku-band otherwise
1 = S-band
2 = X-band
3 = Ka-band"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "UPLINK BAND ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 28
BITS = 2
DESCRIPTION = "Item 12: Uplink Band ID. Allowed
values include:
0 = Not applicable if angle data or 1-way data,
Ku-band otherwise
1 = S-band
2 = X-band
3 = Ka-band"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "EXCITER BAND ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 30
BITS = 2
DESCRIPTION = "Item 13: Exciter Band ID. Allowed
values include:
0 = Not applicable if angle data,
Ku-band otherwise
1 = S-band
2 = X-band
3 = Ka-band"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "DATA VALIDITY INDICATOR"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 32
BITS = 1
DESCRIPTION = "Item 14: The data validity flag. Values are:
0 = good
1 = bad"
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 15"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 33
BITS = 7
DESCRIPTION = "Item 15:
Second receiving station ID number, if VLBI data;
Lowest (last) component, if PRA/SRA range data;
Integer seconds of observable, if RE range data;
Set to 0, otherwise."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 16"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 40
BITS = 10
DESCRIPTION = "Item 16:
Quasar ID, if VLBI quasar data;
Spaceraft ID, otherwise."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 17"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 50
BITS = 1
DESCRIPTION = "Item 17:
Modulus indicator, if wideband VLBI data;
Phase Point indicator, if narrowband
VLBI data;
Receiver/exciter independent flag, if Doppler,
phase, or range data (0=no, 1=yes);
Set to 0, otherwise."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 18"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 51
BITS = 22
DESCRIPTION = "Item 18:
Reference frequency, high part, milliHertz:
Transponder frequency, if one-way Doppler
or phase;
Receiver frequency, if ramped and not
one-way;
Transmitter frequency otherwise;
Set to 0, if angles data."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 19"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 73
BITS = 24
DESCRIPTION = "Item 19: Reference frequency, low part,
milliHertz. See DESCRIPTION under Item 18 for details."
END_OBJECT = BIT_COLUMN
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 6
NAME = "ITEMS 20-22"
DATA_TYPE = MSB_BIT_STRING
START_BYTE = 29
BYTES = 8
DESCRIPTION = "Items 20-22 of the ODF."
OBJECT = BIT_COLUMN
NAME = "ITEM 20"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 1
BITS = 20
DESCRIPTION = "Item 20:
If narrowband VLBI data:
(Phase Calibration Flag minus 1) times 100000, plus
Channel ID Number times 10000.
If wideband VLBI data:
(Channel Sampling Flag minus 1) times 100000, plus
Mode ID number times 10000, plus Modulus high-part
in 10^-1 nanoseconds.
If OTS Doppler data:
Train Axis Angle in millidegrees.
If PRA/SRA range data:
Uplink Ranging Transmitter In-Phase Time Offset from
Sample Timetag in seconds
Otherwise, set to 0."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 21"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 21
BITS = 22
DESCRIPTION = "Item 21:
If wideband VLBI data:
Modulus low-part (units are nanoseconds after the value
is multiplied by 10^-7).
If Doppler, phase, or narrowband VLBI data:
Compression time in hundredths of a second.
If PRA/SRA range data:
Highest (first) Component times 100000, plus
Downlink Ranging Transmitter Coder In-Phase
Time Offset from Sample Timetag in seconds.
Otherwise, set to 0."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "ITEM 22"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 43
BITS = 22
DESCRIPTION = "Item 22:
If VLBI data:
Second Receiving Station Downlink Delay in nanoseconds.
If Doppler, phase, or range data:
Transmitting Station Uplink Delay in nanoseconds.
Otherwise, set to 0."
END_OBJECT = BIT_COLUMN
END_OBJECT = COLUMN
END_OBJECT = ODF3C_TABLE
OBJECT = ODF4A55_TABLE
NAME = "RAMP GROUP 55 HEADER"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 4
ROW_BYTES = 16
ROW_SUFFIX_BYTES = 20
DESCRIPTION = "Ramp Groups are
usually the fourth of several groups of records in an
Orbit Data File (ODF). They contain information on
tuning of receivers or transmitters. There is usually
one Ramp Group for each DSN station. The Ramp Group
Header is the first record in each Ramp Group. It is
one 36-byte record and is followed by one or more 36-
byte Ramp Group data records. Data records are time
ordered within each Ramp Group. The Ramp Group may be
omitted from an ODF. The row suffix bytes in the Ramp
Group Header are set to 0."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "PRIMARY KEY"
DATA_TYPE = MSB_INTEGER
START_BYTE = 1
BYTES = 4
DESCRIPTION = "Item 1: The Primary Key indicates the type
of data records to follow. In the Ramp Group Header
this field is set to 2030."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "SECONDARY KEY"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Item 2: Set to the Station ID Number."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "LOGICAL RECORD LENGTH"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 9
BYTES = 4
UNIT = PACKET
DESCRIPTION = "Item 3: The Logical Record Length gives the
number of 36-byte physical records making up each logical
record in a Ramp Group data record. For the Ramp Group
it is set to 1."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "GROUP START PACKET NUMBER"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The Group Start Packet Number
gives the number of the ODF packet containing the
Ramp Group Header; packet numbering starts with 0
for the File Label Group Header."
END_OBJECT = COLUMN
END_OBJECT = ODF4A55_TABLE
OBJECT = ODF4B55_TABLE
NAME = "RAMP GROUP 55 DATA"
INTERCHANGE_FORMAT = BINARY
ROWS = 15
COLUMNS = 9
ROW_BYTES = 36
DESCRIPTION = "Ramp Groups are
usually the fourth of several groups of records in an
Orbit Data File (ODF). They contain information on
tuning of receivers or transmitters. There is usually
one Ramp Group for each DSN station. The Ramp Group
Header is the first record in each Ramp Group. It is
one 36-byte record and is followed by one or more 36-
byte Ramp Group data records. Data records are time
ordered within each Ramp Group. The Ramp Group may be
omitted from an ODF."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "RAMP START TIME - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 1
BYTES = 4
UNIT = SECOND
DESCRIPTION = "Item 1: The integer part of the ramp
start time, measured from 0 hours UTC on 1 January 1950."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "RAMP START TIME - FRACTIONAL PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
UNIT = NANOSECOND
DESCRIPTION = "Item 2: The fractional part of the ramp
start time - see Column 1 (Item 1)."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "RAMP RATE - INTEGER PART"
DATA_TYPE = MSB_INTEGER
START_BYTE = 9
BYTES = 4
DESCRIPTION = "Item 3: The integer part of the ramp
rate."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "RAMP RATE - FRACTIONAL PART"
DATA_TYPE = MSB_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The fractional part of the ramp
rate, in units of 10^-9 of Column 3."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 5
NAME = "ITEMS 5-6"
DATA_TYPE = MSB_BIT_STRING
START_BYTE = 17
BYTES = 4
DESCRIPTION = "Items 5-6 of the ODF."
OBJECT = BIT_COLUMN
NAME = "RAMP START FREQUENCY - GHZ"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 1
BITS = 22
UNIT = GIGAHERTZ
DESCRIPTION = "Item 5: Ramp Start Frequency, integer GHz.
If this value is non-zero, Ramp Start Frequency and Ramp
Rate are at sky level."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "STATION ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 23
BITS = 10
DESCRIPTION = "Item 6: Receiving/Transmitting Station
ID Number."
END_OBJECT = BIT_COLUMN
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 6
NAME = "RAMP START FREQUENCY - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 21
BYTES = 4
UNIT = HERTZ
DESCRIPTION = "Item 7: The integer part of the
Ramp Start Frequency, modulo 10^9."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 7
NAME = "RAMP START FREQUENCY - FRACTIONAL PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 25
BYTES = 4
DESCRIPTION = "Item 8: The fractional part of the
Ramp Start Frequency, in units of 10^-9 of
Column 6."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 8
NAME = "RAMP END TIME - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 29
BYTES = 4
UNIT = SECOND
DESCRIPTION = "Item 9: The integer part of the ramp
end time, measured from 0 hours UTC on 1 January 1950."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 9
NAME = "RAMP END TIME - FRACTIONAL PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 33
BYTES = 4
UNIT = NANOSECOND
DESCRIPTION = "Item 10: The fractional part of the ramp
end time (see Column 8)."
END_OBJECT = COLUMN
END_OBJECT = ODF4B55_TABLE
OBJECT = ODF4A65_TABLE
NAME = "RAMP GROUP 65 HEADER"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 4
ROW_BYTES = 16
ROW_SUFFIX_BYTES = 20
DESCRIPTION = "Ramp Groups are
usually the fourth of several groups of records in an
Orbit Data File (ODF). They contain information on
tuning of receivers or transmitters. There is usually
one Ramp Group for each DSN station. The Ramp Group
Header is the first record in each Ramp Group. It is
one 36-byte record and is followed by one or more 36-
byte Ramp Group data records. Data records are time
ordered within each Ramp Group. The Ramp Group may be
omitted from an ODF. The row suffix bytes in the Ramp
Group Header are set to 0."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "PRIMARY KEY"
DATA_TYPE = MSB_INTEGER
START_BYTE = 1
BYTES = 4
DESCRIPTION = "Item 1: The Primary Key indicates the type
of data records to follow. In the Ramp Group Header
this field is set to 2030."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "SECONDARY KEY"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Item 2: Set to the Station ID Number."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "LOGICAL RECORD LENGTH"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 9
BYTES = 4
UNIT = PACKET
DESCRIPTION = "Item 3: The Logical Record Length gives the
number of 36-byte physical records making up each logical
record in a Ramp Group data record. For the Ramp Group
it is set to 1."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "GROUP START PACKET NUMBER"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The Group Start Packet Number
gives the number of the ODF packet containing the
Ramp Group Header; packet numbering starts with 0
for the File Label Group Header."
END_OBJECT = COLUMN
END_OBJECT = ODF4A65_TABLE
OBJECT = ODF4B65_TABLE
NAME = "RAMP GROUP 65 DATA"
INTERCHANGE_FORMAT = BINARY
ROWS = 29
COLUMNS = 9
ROW_BYTES = 36
DESCRIPTION = "Ramp Groups are
usually the fourth of several groups of records in an
Orbit Data File (ODF). They contain information on
tuning of receivers or transmitters. There is usually
one Ramp Group for each DSN station. The Ramp Group
Header is the first record in each Ramp Group. It is
one 36-byte record and is followed by one or more 36-
byte Ramp Group data records. Data records are time
ordered within each Ramp Group. The Ramp Group may be
omitted from an ODF."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "RAMP START TIME - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 1
BYTES = 4
UNIT = SECOND
DESCRIPTION = "Item 1: The integer part of the ramp
start time, measured from 0 hours UTC on 1 January 1950."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "RAMP START TIME - FRACTIONAL PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
UNIT = NANOSECOND
DESCRIPTION = "Item 2: The fractional part of the ramp
start time - see Column 1 (Item 1)."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "RAMP RATE - INTEGER PART"
DATA_TYPE = MSB_INTEGER
START_BYTE = 9
BYTES = 4
DESCRIPTION = "Item 3: The integer part of the ramp
rate."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "RAMP RATE - FRACTIONAL PART"
DATA_TYPE = MSB_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The fractional part of the ramp
rate, in units of 10^-9 of Column 3."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 5
NAME = "ITEMS 5-6"
DATA_TYPE = MSB_BIT_STRING
START_BYTE = 17
BYTES = 4
DESCRIPTION = "Items 5-6 of the ODF."
OBJECT = BIT_COLUMN
NAME = "RAMP START FREQUENCY - GHZ"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 1
BITS = 22
UNIT = GIGAHERTZ
DESCRIPTION = "Item 5: Ramp Start Frequency, integer GHz.
If this value is non-zero, Ramp Start Frequency and Ramp
Rate are at sky level."
END_OBJECT = BIT_COLUMN
OBJECT = BIT_COLUMN
NAME = "STATION ID"
BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BIT = 23
BITS = 10
DESCRIPTION = "Item 6: Receiving/Transmitting Station
ID Number."
END_OBJECT = BIT_COLUMN
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 6
NAME = "RAMP START FREQUENCY - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 21
BYTES = 4
UNIT = HERTZ
DESCRIPTION = "Item 7: The integer part of the
Ramp Start Frequency, modulo 10^9."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 7
NAME = "RAMP START FREQUENCY - FRACTIONAL PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 25
BYTES = 4
DESCRIPTION = "Item 8: The fractional part of the
Ramp Start Frequency, in units of 10^-9 of
Column 6."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 8
NAME = "RAMP END TIME - INTEGER PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 29
BYTES = 4
UNIT = SECOND
DESCRIPTION = "Item 9: The integer part of the ramp
end time, measured from 0 hours UTC on 1 January 1950."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 9
NAME = "RAMP END TIME - FRACTIONAL PART"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 33
BYTES = 4
UNIT = NANOSECOND
DESCRIPTION = "Item 10: The fractional part of the ramp
end time (see Column 8)."
END_OBJECT = COLUMN
END_OBJECT = ODF4B65_TABLE
OBJECT = ODF8A_TABLE
NAME = "END OF FILE GROUP HEADER"
INTERCHANGE_FORMAT = BINARY
ROWS = 1
COLUMNS = 4
ROW_BYTES = 16
ROW_SUFFIX_BYTES = 20
DESCRIPTION = "The End of File Group
is usually the eighth and last of several groups of
records in an Orbit Data File (ODF). It is a single
record of 36-bytes and denotes the logical end of the
ODF. Row suffix bytes are set to 0."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "PRIMARY KEY"
DATA_TYPE = MSB_INTEGER
START_BYTE = 1
BYTES = 4
DESCRIPTION = "Item 1: The Primary Key indicates the type
of data records to follow. In the End of File Group
this field is set to -1."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "SECONDARY KEY"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 4
DESCRIPTION = "Item 2: The Secondary Key is not used in
the ODF. It is set to 0."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "LOGICAL RECORD LENGTH"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 9
BYTES = 4
UNIT = PACKET
DESCRIPTION = "Item 3: The Logical Record Length is set
to 0 in the End of File Group, indicating that no
logical records follow."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "GROUP START PACKET NUMBER"
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 13
BYTES = 4
DESCRIPTION = "Item 4: The Group Start Packet Number
gives the number of the ODF packet containing the
End of File Group; packet numbering starts with 0
for the File Label Group Header."
END_OBJECT = COLUMN
END_OBJECT = ODF8A_TABLE
OBJECT = ODF8B_TABLE
NAME = "END OF FILE GROUP DATA"
INTERCHANGE_FORMAT = BINARY
ROWS = 177
COLUMNS = 1
ROW_BYTES = 36
DESCRIPTION = "The End of File Group Data
are the last several records in an Orbit Data File
(ODF). They are not defined, and simply fill out
the final 8064-byte logical blocks in the file."
OBJECT = COLUMN
NAME = "SPARE"
DATA_TYPE = MSB_INTEGER
BYTES = 36
START_BYTE = 1
ITEMS = 9
ITEM_BYTES = 4
ITEM_OFFSET = 4
END_OBJECT = COLUMN
END_OBJECT = ODF8B_TABLE
END_OBJECT = FILE
END
------------------------------------------------------------------------------
Level 1b
========
The processing from ODF Level 1a to 1b is currently under development, so
no absolutely finished label is available.
The following label is an example PDS label for only one ODF closed-loop
data file of data level 1b (DPX). The labels of the other ODF level 1b
data files are very similar, the differences in the label headers are
listed below the example label in a table.
------------------------------------------------------------------------------
PDS_VERSION_ID = PDS3
DATA_SET_ID = MEX-M-MRS-1/2/3-NEV-0005-V1.0
TARGET_NAME = MARS
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
SPACECRAFT_ID = "MEX"
MISSION_PHASE_NAME = "PRIMARY MISSION"
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE "
INSTRUMENT_ID = "MRS"
PRODUCER_ID = "IGM COLOGNE"
DSN_STATION_NUMBER = 43
PRODUCT_CREATION_TIME = 2004-03-17T13:58:16.000
STANDARD_DATA_PRODUCT_ID = "ODF "
PRODUCT_ID = M55ODF0L1B_DPX_04092_00.LBL
ORIGINAL_PRODUCT_ID = "M43ODF0L1B_DPX_031871454_00.LBL"
SOFTWARE_NAME = "IFMS-READ-PROGRAM1.0"
^DOPPLER_XBAND = "M43ODF0L1B_DPX_031871454_00.TAB"
OBJECT = FILE
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 89
FILE_RECORDS = 372
START_TIME = 2003-07-06T14:54:00.999
STOP_TIME = 2003-07-06T21:13:48.999
OBJECT = DOPPLER_XBAND_TABLE
NAME = DOPPLER_XBAND_DATA
INTERCHANGE_FORMAT = ASCII
ROWS = 372
COLUMNS = 9
ROW_BYTES = 89
OBJECT = COLUMN
NAME = "SAMPLE NUMBER"
COLUMN_NUMBER = 1
START_BYTE = 1
BYTES = 21
DATA_TYPE = ASCII_INTEGER
UNIT = N/A
DESCRIPTION = ""
END_OBJECT = COLUMN
TBD
TBD
------------------------------------------------------------------------------
------------------------------------------------------------------------------
|ODF level 1b| Product_Id | Original_Product_Id |
|data type | | |
------------------------------------------------------------------------------
|DPX |M55ODF0L1B_DPX_040920917_00.LBL|M55ODF0L1A_DPX_040920917_00.LBL|
|DPS |M55ODF0L1B_DPS_040920917_00.LBL|M55ODF0L1A_DPS_040920917_00.LBL|
|RGS |M55ODF0L1B_RGS_040920917_00.LBL|M55ODF0L1A_RGS_040920917_00.LBL|
|RGX |M55ODF0L1B_RGX_040920917_00.LBL|M55ODF0L1A_RGX_040920917_00.LBL|
------------------------------------------------------------------------------
Level 02
========
The format of the Level 02 ODF data have not been fixed yet. The
development is currently ongoing.
DSN RSR products
================
Level 1a
========
------------------------------------------------------------------------------
PDS_VERSION_ID = PDS3
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 25260
FILE_RECORDS = 3241
DATA_SET_ID = "MEX-M-MRS-1/2/3-NEV-0005-V1.0"
PROCESSING_LEVEL_ID = 1
OBSERVATION_TYPE = "COMMISSIONING"
TARGET_NAME = "MARS"
INSTRUMENT_HOST_ID = "MEX"
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE"
PRODUCER_ID = "DSN"
DSN_STATION_NUMBER = 43
BAND_NAME = X
RECEIVED_POLARIZATION_TYPE = "RIGHT CIRCULAR"
NOTE = "N/A"
PRODUCT_CREATION_TIME = 2003-07-06T14:32:00
STANDARD_DATA_PRODUCT_ID = RSR
PRODUCT_ID = "M43R1A1L1A_RSR_031871418_00.DAT"
^TABLE = "M43R1A1L1A_RSR_031871418_00.DAT"
START_TIME = 2003-07-06T14:18:30
STOP_TIME = 2003-07-06T14:32:00
SOFTWARE_NAME = "UNK"
DOCUMENT_NAME = "JPL D-16765"
OBJECT = TABLE
INTERCHANGE_FORMAT = BINARY
ROWS = 3241
COLUMNS = 72
ROW_BYTES = 25260
DESCRIPTION = "The Radio Science Receiver (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 in one second records in real
time. In near real time the one second records are partitioned and
formatted into a sequence of RSR Standard Format Data Units (SFDUs)
which are transmitted to the Advanced Multi-Mission Operations System
(AMMOS) at the Jet Propulsion Laboratory (JPL). Included in each RSR
SFDU are the ancillary data necessary to reconstruct the signal
represented by the recorded data samples.
Each SFDU is defined here as a single row in a PDS TABLE object; later
SFDUs are later rows. The first fields in each row contain the ancillary
data (time tags and frequency estimates, for example) that applied while
the samples at the end of the record were being collected. The object
definitions below explain where the fields are and what the contents
represent.
Analysis of variations in the amplitude, frequency, and phase of the
recorded signals provides information on the ring structure, atmospheric
density, magnetic field, and charged particle environment of planets
which occult the spacecraft. Variations in the recorded signal can also
be used for detection of gravitational waves."
OBJECT = COLUMN
NAME = "SFDU CONTROL AUTHORITY"
COLUMN_NUMBER = 1
START_BYTE = 1
BYTES = 4
DATA_TYPE = CHARACTER
UNIT = "N/A"
DESCRIPTION = "An ASCII string giving the SFDU
Control Authority for this data
type. Set to 'NJPL', meaning the
data description information for
this type of SFDU is maintained
by the NASA/JPL Control Authority."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU LABEL VERSION ID"
COLUMN_NUMBER = 2
START_BYTE = 5
BYTES = 1
DATA_TYPE = CHARACTER
UNIT = "N/A"
DESCRIPTION = "An ASCII character giving the SFDU
Label Version Identifier. Set to
'2', meaning the length given in
bytes 13-20 is formatted as a
binary unsigned integer."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU CLASS ID"
COLUMN_NUMBER = 3
START_BYTE = 6
BYTES = 1
DATA_TYPE = CHARACTER
UNIT = "N/A"
DESCRIPTION = "An ASCII character giving the SFDU
Class Identifier. Set to 'I',
meaning this is a Compressed Header
Data Object (CHDO) structured SFDU."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU RESERVED"
COLUMN_NUMBER = 4
START_BYTE = 7
BYTES = 2
DATA_TYPE = MSB_INTEGER
UNIT = "N/A"
DESCRIPTION = "These two bytes are not defined."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU DATA DESCRIPTION ID"
COLUMN_NUMBER = 5
START_BYTE = 9
BYTES = 4
DATA_TYPE = CHARACTER
UNIT = "N/A"
DESCRIPTION = "An ASCII string giving the SFDU Data
Description Identifier. Set to
'C997', a unique identifier for the
RSR data type within the NASA/JPL
Control Authority."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU RSR LENGTH PAD"
COLUMN_NUMBER = 6
START_BYTE = 13
BYTES = 4
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "The high-order 32 bits of a 64-bit
unsigned binary integer giving the
number of remaining bytes in
the SFDU after the 20-byte label.
Always '0' in the RSR SFDU."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU RSR LENGTH"
COLUMN_NUMBER = 7
START_BYTE = 17
BYTES = 4
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "BYTE"
DESCRIPTION = "The number of remaining bytes in
the SFDU after the 20-byte label.
Always less than 31000."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "HEADER AGGREGATION CHDO TYPE"
COLUMN_NUMBER = 8
START_BYTE = 21
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Header Aggregation CHDO Type. Set
to '1', meaning this CHDO is an
aggregation of header CHDOs. The
NJPL Control Authority maintains a
registry of CHDO types."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "HEADER AGGREGATION CHDO LENGTH"
COLUMN_NUMBER = 9
START_BYTE = 23
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "BYTE"
DESCRIPTION = "Header Aggregation CHDO Length. Set
to '232', meaning length of the
value field of the Header Aggregation
CHDO is 232 bytes (bytes 25-256)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PRIMARY HEADER CHDO TYPE"
COLUMN_NUMBER = 10
START_BYTE = 25
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Primary Header CHDO Type. Set to
to '2', meaning this CHDO is a
primary header CHDO. The NJPL
Control Authority maintains a
registry of CHDO types."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PRIMARY HEADER CHDO LENGTH"
COLUMN_NUMBER = 11
START_BYTE = 27
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "BYTE"
DESCRIPTION = "Primary Header CHDO Length. Set to
'4', meaning length of the value
field of the Primary Header CHDO is
4 bytes (bytes 29-32)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "MAJOR DATA CLASS"
COLUMN_NUMBER = 12
START_BYTE = 29
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Major Data Class. Set to '21',
meaning this SFDU contains Radio
Science data."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "MINOR DATA CLASS"
COLUMN_NUMBER = 13
START_BYTE = 30
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Minor Data Class. Set to '4'.
This Major/Minor Data Class
combination means the SFDU contains
Radio Science RSR data."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "MISSION IDENTIFIER"
COLUMN_NUMBER = 14
START_BYTE = 31
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Mission Identifier. Set to '0',
meaning the RSR does not use this
field. The value may be changed
if the Ground Data System handles
the data. If a Mission Identifier
is needed, values may be found in
DSN document 820-013, OPS-6-21A,
Table 3-4."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "FORMAT CODE"
COLUMN_NUMBER = 15
START_BYTE = 32
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Format Code. Set to '0'. The RSR
supports only one data format."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SECONDARY HEADER CHDO TYPE"
COLUMN_NUMBER = 16
START_BYTE = 33
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Secondary Header CHDO Type. Set to
to '104', meaning this CHDO is an
RSR secondary header CHDO. The NJPL
Control Authority maintains a
registry of CHDO types."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SECONDARY HEADER CHDO LENGTH"
COLUMN_NUMBER = 17
START_BYTE = 35
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "BYTE"
DESCRIPTION = "Secondary Header CHDO Length. Set to
'220', meaning length of the value
field of the Secondary Header CHDO is
220 bytes (bytes 37-256)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ORIGINATOR ID"
COLUMN_NUMBER = 18
START_BYTE = 37
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Originator Identifier. A value '48'
means the data originated within the
DSN."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LAST MODIFIER ID"
COLUMN_NUMBER = 19
START_BYTE = 38
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Last Modifier Identifier. A value
'48' means the contents of the SFDU
were last modified by the DSN."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RSR SOFTWARE ID"
COLUMN_NUMBER = 20
START_BYTE = 39
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "RSR Software Identifier. The version
of the RSR software is indicated by
an unsigned binary integer between
0 and 65535."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RECORD SEQUENCE NUMBER"
COLUMN_NUMBER = 21
START_BYTE = 41
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "The Record Sequence Number (RSN)
starts at 0 for the first RSR SFDU
and increments by 1 for each
successive SFDU to a maximum of
65535, after which it resets to 0
and begins incrementing again.
The RSN may be reset at other times,
such as when the RSR is started or
restarted. The RSN is provided by
the originator of the SFDU and should
not be changed during subsequent
handling or modification."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGNAL PROCESSING CENTER"
COLUMN_NUMBER = 22
START_BYTE = 43
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Signal Processing Center (SPC)
Identifer. Valid numbers include
10 Goldstone
40 Canberra
60 Madrid
21 DTF21"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DEEP SPACE STATION"
COLUMN_NUMBER = 23
START_BYTE = 44
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Deep Space Station (DSS) Identifier.
This is the DSS identifier listed in
the frequency predicts file used to
collect the data in this SFDU. DSS
identifiers are listed in DSN
document 820-013, OPS-6-3 and include
valid numbers such as 14, 15, 25, 43,
45, 54, and 63."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RADIO SCIENCE RECEIVER"
COLUMN_NUMBER = 24
START_BYTE = 45
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Radio Science Receiver (RSR)
Identifier. Values can be in the
range 1-16 and specify the RSR used
to collect the data in this SFDU.
For example,
RSR ID = 1 denotes RSR1A
RSR ID = 2 denotes RSR1B
RSR ID = 3 denotes RSR2A
The SPC ID and RSR ID uniquely
specify the hardware used in the
data acquisition. SPC 10 has three
RSR racks; SPC 40 and SPC 60 each
have two. Each rack has two
receivers (A and B). Except for the
analog components in the ADCs, the
end-to-end performance of every RSR
should be identical."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL IDENTIFIER"
COLUMN_NUMBER = 25
START_BYTE = 46
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Sub-Channel Identifier. This can be
in the range 1-4 and specifies the
RSR sub-channel used to acquire the
the data in this SFDU."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SECONDARY HEADER CHDO RESERVED"
COLUMN_NUMBER = 26
START_BYTE = 47
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "This field is not used."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPACECRAFT"
COLUMN_NUMBER = 27
START_BYTE = 48
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Spacecraft Identifier, as listed in
the frequency predicts file used to
collect the data in this SFDU. Values
are assigned by the Deep Space
Mission System (DSMS) and are in the
range 0-255. Assignments are given
in DSN document 820-013, OPS-6-21A,
Table 3-4."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PREDICTS PASS NUMBER"
COLUMN_NUMBER = 28
START_BYTE = 49
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Predicts Pass Number (range 0-65535)
gives the DSN pass number in the
predicts file used to collect the
data in this SFDU."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "UPLINK FREQUENCY BAND"
COLUMN_NUMBER = 29
START_BYTE = 51
BYTES = 1
DATA_TYPE = CHARACTER
UNIT = "N/A"
DESCRIPTION = "The Uplink Frequency Band specified
in the predicts file used to collect
the data in this SFDU. Possible
values include 'S' (S-Band), 'X' (X-
Band), and 'K' (Ka-Band)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DOWNLINK FREQUENCY BAND"
COLUMN_NUMBER = 30
START_BYTE = 52
BYTES = 1
DATA_TYPE = CHARACTER
UNIT = "N/A"
DESCRIPTION = "The Downlink Frequency Band specified
in the predicts file used to collect
the data in this SFDU. Possible
values include 'S' (S-Band), 'X' (X-
Band), and 'K' (Ka-Band)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "TRACKING MODE"
COLUMN_NUMBER = 31
START_BYTE = 53
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "The Tracking Mode in use when the
data in this SFDU were acquired.
Possible values are '1' (one-way),
'2' (two-way), and '3' (three-way)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "UPLINK DSS ID FOR 3-WAY TRACKING"
COLUMN_NUMBER = 32
START_BYTE = 54
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Deep Space Station (DSS) Identifier
for the uplink antenna when
TRACKING_MODE=3; otherwise,
undefined. DSS identifiers are
listed in DSN document 820-013,
OPS-6-3 and include valid numbers
such as 14, 15, 25, 43, 45, 54, and
63."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "FGAIN"
COLUMN_NUMBER = 33
START_BYTE = 55
BYTES = 1
DATA_TYPE = MSB_INTEGER
UNIT = "DECIBEL HERTZ"
DESCRIPTION = "Expected ratio of signal power to
noise power in a one Hz bandwidth
when the data in this SFDU were
collected. This parameter is used
to estimate the sample voltage
amplitudes at the RSR output and
to compute settings of the
sub-channel filter gain so that
there is no clipping of the sample
values. Possible values are in the
range -127 to +128."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "FGAIN IF BANDWIDTH"
COLUMN_NUMBER = 34
START_BYTE = 56
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "MEGAHERTZ"
DESCRIPTION = "IF Bandwidth expected to be in use
by the RSR at the time the data in
this SFDU were acquired. This value
is used to compute the settings of
the sub-channel filter gain. Values
can be in the range 1-127."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "FROV FLAG"
COLUMN_NUMBER = 35
START_BYTE = 57
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Frequency Predicts Override Flag.
Set to '0', this indicates that the
frequency predicts file was in use;
any other value indicates that the
frequency specified by the FROV
command was in use. The value of
the override frequency is given by
PREDICTS_FREQUENCY_OVERRIDE in
Column 51."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DIG ATTENUATION"
COLUMN_NUMBER = 36
START_BYTE = 58
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "RSR Digitizer Subassembly (DIG)
setting. Values are in the range
0-63, which correspond to 0.5 dB
increments in attenuation."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DIG ADC RMS"
COLUMN_NUMBER = 37
START_BYTE = 59
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Root-mean-square amplitude of about
10000 8-bit samples taken from the DIG
ADC stream. Time of the measurement
is stored in bytes Columns 39-41."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DIG ADC PEAK"
COLUMN_NUMBER = 38
START_BYTE = 60
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Peak amplitude from about 10000 8-bit
samples taken from the DIG ADC stream.
Time for the measurement is stored in
Columns 39-41."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DIG ADC YEAR"
COLUMN_NUMBER = 39
START_BYTE = 61
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "UTC year on which the ADC data were
computed. Values can range over
1900-3000."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DIG ADC DAY OF YEAR"
COLUMN_NUMBER = 40
START_BYTE = 63
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "UTC day-of-year on which the ADC
data were computed. Values can
range over 1-366."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DIG ADC SECOND"
COLUMN_NUMBER = 41
START_BYTE = 65
BYTES = 4
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "SECOND"
DESCRIPTION = "UTC second of day on which the ADC
data were computed. Values can
range over 0-86400."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SAMPLE RESOLUTION"
COLUMN_NUMBER = 42
START_BYTE = 69
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "BIT"
DESCRIPTION = "Bits per sample in the data in this
SFDU. Valid values are 1, 2, 4, 8,
and 16 and are selected by the RSR
operator while it is in configure
state."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DATA ERROR COUNT"
COLUMN_NUMBER = 43
START_BYTE = 70
BYTES = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Number of hardware errors encountered
while the data in this SFDU were
being recorded. Values can range over
0-255, but any value greater than 0
indicates data may have been
corrupted by hardware errors."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SAMPLE RATE"
COLUMN_NUMBER = 44
START_BYTE = 71
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "KILOSAMPLE PER SECOND"
DESCRIPTION = "The rate at which samples were
collected in this SFDU. Sample rate
or bandwidth is specified by the
operator while the RSR is in the
configure state."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DDC LO FREQUENCY"
COLUMN_NUMBER = 45
START_BYTE = 73
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "MEGAHERTZ"
DESCRIPTION = "Digital Down Converter (DDC) Local
Oscillator (LO) Frequency. This
specifies the downconversion applied
to the signal in the DIG and DDC.
This frequency is needed to compute
the sky frequency of the data in
this SFDU:
Fsky = RFtoIF_LO +
DDC_LO -
NCO_Freq +
Fresid
where
RFtoIF_LO is in Column 46,
DDC_LO is in Column 45,
NCO_Freq from Columns 61-63, and
Fresid is the signal offset
from DC in the RSR data."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RF-IF LO FREQUENCY"
COLUMN_NUMBER = 46
START_BYTE = 75
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "MEGAHERTZ"
DESCRIPTION = "RF to IF Down Converter Local
Oscillator (LO) Frequency. This
specifies the total downconversion
applied to the signal before it
entered the RSR DIG. The value is
subtracted from the RF predict
points in order to obtain the
frequency of the desired signal at
IF. The RSR selects a default value
based on the downlink band: 2000
(S-Band), 8100 (X-Band), or 31700
(Ka-Band). This frequency is needed
in order to reconstruct the sky
frequency of the data contained in
this SFDU:
Fsky = RFtoIF_LO +
DDC_LO -
NCO_Freq +
Fresid
where
RFtoIF_LO is in Column 46,
DDC_LO is in Column 45,
NCO_Freq from Columns 61-63, and
Fresid is the signal offset
from DC in the RSR data."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU YEAR"
COLUMN_NUMBER = 47
START_BYTE = 77
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "UTC year for the SFDU data and
models. Values can range over
1900-3000."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU DAY OF YEAR"
COLUMN_NUMBER = 48
START_BYTE = 79
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "UTC day-of-year for the SFDU
data and models. Values can
range over 1-366."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SFDU SECOND"
COLUMN_NUMBER = 49
START_BYTE = 81
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "SECOND"
DESCRIPTION = "UTC seconds of day for the SFDU
data and models. Values can range
over 0-86400."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PREDICTS TIME SHIFT"
COLUMN_NUMBER = 50
START_BYTE = 89
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "SECOND"
DESCRIPTION = "The number of seconds added to the
time tags of the frequency predicts
to shift them in time. This feature
allows testing the RSR with old
predict files. The value should be
0.0 during normal operations."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PREDICTS FREQUENCY OVERRIDE"
COLUMN_NUMBER = 51
START_BYTE = 97
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The value of the predicts frequency
override specified by the FROV
command; this constant value is
substituted for the value derived
from the predicts. The flag in
Column 35 indicates whether the
frequency override is active."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PREDICTS FREQUENCY RATE"
COLUMN_NUMBER = 52
START_BYTE = 105
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ PER SECOND"
DESCRIPTION = "The frequency rate added to the RF
frequency predicts as specified by
the FRR command. The allowable range
is -8000 to +8000 Hz/s."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PREDICTS FREQUENCY OFFSET"
COLUMN_NUMBER = 53
START_BYTE = 113
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The total frequency added to the
RF frequency predicts as specified
the FRO command and the accumulated
frequency rate as specified by the
FRR command. The allowable
range is -8 to +8 MHz."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY OFFSET"
COLUMN_NUMBER = 54
START_BYTE = 121
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The frequency added to the frequency
predicts for this sub-channel as
specified by the SFRO command."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RF POINT 1"
COLUMN_NUMBER = 55
START_BYTE = 129
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The radio frequency at the beginning
of the second as calculated from the
predicts."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RF POINT 2"
COLUMN_NUMBER = 56
START_BYTE = 137
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The radio frequency at the middle
of the second as calculated from the
predicts."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RF POINT 3"
COLUMN_NUMBER = 57
START_BYTE = 145
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The radio frequency at the end
of the second as calculated from the
predicts."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY POINT 1"
COLUMN_NUMBER = 58
START_BYTE = 153
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The sub-channel frequency at the
beginning of the second. This
point is used to create the
sub-channel frequency and phase
polynomials."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY POINT 2"
COLUMN_NUMBER = 59
START_BYTE = 161
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The sub-channel frequency at the
middle of the second. This
point is used to create the
sub-channel frequency and phase
polynomials."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY POINT 3"
COLUMN_NUMBER = 60
START_BYTE = 169
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The sub-channel frequency at the
end of the second. This
point is used to create the
sub-channel frequency and phase
polynomials."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY COEF F1"
COLUMN_NUMBER = 61
START_BYTE = 177
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The sub-channel frequency polynomial
coefficient F1 where the frequency
over a one millisecond interval
beginning at t in msec is evaluated
F(t) = F1 +
F2*((t+0.5)/1000) +
F3*((t+0.5)/1000)**2
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY COEF F2"
COLUMN_NUMBER = 62
START_BYTE = 185
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The sub-channel frequency polynomial
coefficient F2 where the frequency
over a one millisecond interval
beginning at t in msec is evaluated
F(t) = F1 +
F2*((t+0.5)/1000) +
F3*((t+0.5)/1000)**2
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL FREQUENCY COEF F3"
COLUMN_NUMBER = 63
START_BYTE = 193
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "HERTZ"
DESCRIPTION = "The sub-channel frequency polynomial
coefficient F3 where the frequency
over a one millisecond interval
beginning at t in msec is evaluated
F(t) = F1 +
F2*((t+0.5)/1000) +
F3*((t+0.5)/1000)**2
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL ACCUMULATED PHASE"
COLUMN_NUMBER = 64
START_BYTE = 201
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "CYCLE"
DESCRIPTION = "The accumulated whole turns of the
sub-channel phase at the beginning
of the present second. The phase
during this second is the accumulated
phase incremented by the phase
computed using the coefficients in
Columns 65-68."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL PHASE COEF P1"
COLUMN_NUMBER = 65
START_BYTE = 209
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "CYCLE"
DESCRIPTION = "The sub-channel phase polynomial
coefficient P1 where the phase
over a one millisecond interval
beginning at t in msec is evaluated
P(t) = P1 +
P2*((t+0.5)/1000) +
P3*((t+0.5)/1000)**2 +
P4*((t+0.5)/1000)**3
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL PHASE COEF P2"
COLUMN_NUMBER = 66
START_BYTE = 217
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "CYCLE"
DESCRIPTION = "The sub-channel phase polynomial
coefficient P2 where the phase
over a one millisecond interval
beginning at t in msec is evaluated
P(t) = P1 +
P2*((t+0.5)/1000) +
P3*((t+0.5)/1000)**2 +
P4*((t+0.5)/1000)**3
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL PHASE COEF P3"
COLUMN_NUMBER = 67
START_BYTE = 225
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "CYCLE"
DESCRIPTION = "The sub-channel phase polynomial
coefficient P3 where the phase
over a one millisecond interval
beginning at t in msec is evaluated
P(t) = P1 +
P2*((t+0.5)/1000) +
P3*((t+0.5)/1000)**2 +
P4*((t+0.5)/1000)**3
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-CHANNEL PHASE COEF P4"
COLUMN_NUMBER = 68
START_BYTE = 233
BYTES = 8
DATA_TYPE = IEEE_REAL
UNIT = "CYCLE"
DESCRIPTION = "The sub-channel phase polynomial
coefficient P4 where the phase
over a one millisecond interval
beginning at t in msec is evaluated
P(t) = P1 +
P2*((t+0.5)/1000) +
P3*((t+0.5)/1000)**2 +
P4*((t+0.5)/1000)**3
The coefficients are derived from
the frequency points in columns
58-60."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPARES"
COLUMN_NUMBER = 69
BYTES = 16
ITEMS = 16
START_BYTE = 241
ITEM_BYTES = 1
ITEM_OFFSET = 1
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "These 16 bytes are undefined."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DATA CHDO TYPE"
COLUMN_NUMBER = 70
START_BYTE = 257
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Data CHDO Type. Set to '10', meaning
this CHDO contains binary data. The
NJPL Control Authority maintains a
registry of CHDO types."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DATA CHDO LENGTH"
COLUMN_NUMBER = 71
START_BYTE = 259
BYTES = 2
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "BYTE"
DESCRIPTION = "Data CHDO Length. Gives the number of
bytes in the value field of the Data
CHDO -- the number of bytes containing
I and Q samples."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SAMPLE WORDS"
COLUMN_NUMBER = 72
START_BYTE = 261
BYTES = 25000
ITEMS = 6250
ITEM_BYTES = 4
ITEM_OFFSET = 4
DATA_TYPE = MSB_UNSIGNED_INTEGER
UNIT = "N/A"
DESCRIPTION = "Each ITEM contains one 32-bit sample
word: quadrature (Q) sample data in
the 16 most significant bits (MSBs)
followed by in-phase (I) sample data
in the 16 least significant bits
(LSBs). Within each Q and I word,
individual outputs from the analog
to digital converters (ADCs) are
stored as 1, 2, 4, 8, or 16 bit values
in LSB to MSB time order (the sample
size is set in Column 42). For
example, if the data were collected
using 8-bit samples, the arrangement
would be
BYTES 1-2
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
BITS |1|2|3|4|5|6|7|8|1|2|3|4|5|6|7|8|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|<------Q2----->|<------Q1----->|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
BYTES 3-4
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
BITS |1|2|3|4|5|6|7|8|1|2|3|4|5|6|7|8|
|<------I2----->|<------I1----->|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where (Q1,I1) is the earlier sample
and (Q2,I2) was taken later."
END_OBJECT = COLUMN
END_OBJECT = TABLE
END
------------------------------------------------------------------------------
Level 02
========
------------------------------------------------------------------------------
PDS_VERSION_ID = PDS3
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 256
FILE_RECORDS = 3367
^TABLE = "M65RSR0L02_DPX_041011620_00.TAB"
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
INSTRUMENT_HOST_ID = "MEX"
TARGET_NAME = MARS
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE"
DATA_SET_ID = "MEX-M-MRS-1/2/3-MCO-0027-V1.0"
STANDARD_DATA_PRODUCT_ID = L2N
PROCESSING_LEVEL_ID = 3
DSN_STATION_NUMBER = 65
OBSERVATION_TYPE = "COMMISSIONING"
RECEIVED_POLARIZATION_TYPE = "RIGHT CIRCULAR"
BAND_NAME = X
PRODUCT_ID = "M65RSR0L02_DPX_041011620_00.TAB"
SPICE_FILE_NAME = "M00NAIFL02_BSP_041011620_00.AUX"
SOURCE_PRODUCT_ID = "N/A"
START_TIME = 2004-04-10T16:20:00
STOP_TIME = 2004-04-10T16:48:44
PRODUCT_CREATION_TIME = 2005-02-15T18:00:31
PRODUCER_ID = "SUE"
OBJECT = TABLE
INTERCHANGE_FORMAT = ASCII
ROWS = 3367
COLUMNS = 17
ROW_BYTES = 256
DESCRIPTION = "
This table contains calibrated Doppler and amplitude measurements
from Mars Express, collected using antennas and 'open loop' receiving
equipment at stations of the NASA Deep Space Network (DSN). The
processing was carried out at Stanford University.
Open loop receivers sample a spectral window (typically 2 kHz in
this case) centered on the expected MEX frequency. In a 'closed
loop' system a phase lock loop tracks the incoming signal. Open
loop data are distinguished from closed loop data by their much
higher rate and superior fidelity in characterizing the signal.
In 'two-way' observations a signal transmitted from Earth (the
'uplink') is received by the spacecraft, changed slightly in
frequency, and immediately echoed back to Earth. The uplink signal
has a frequency f_t at transmit time t given by
f_t = f_0 + df*(t-t0)
where f_0 is a constant, df is a linear 'ramp rate', and t0
is the reference time when f_t = f_0. One round-trip light time
(RTLT) after a photon at f_t was transmitted, it is captured by
the receiver. The uplink transmit time t_u, the receive time
t_r, and the RTLT are related by
t_r = t_u + RTLT
where RTLT can be determined from the observing geometry. The time
at which the 'downlink' photon leaves the spacecraft is t_d.
In a 'one-way' experiment, there is no uplink; the signal transmitted
by the spacecraft is assumed to have a frequency f_t as defined
above. If a photon at f_t leaves the spacecraft at t_d, then it
will be received one one-way light time (OWLT) later:
t_r = t_d + OWLT
During transit, there will be a time when the photon is closest to the
target body (given by keyword TARGET_NAME); its closest approach
distance is listed in column 5 of the table. For two-way observations,
the average of the uplink and downlink 'impact' parameters is given.
The table may contain data collected primarily at S-band (12-13 cm
wavelength) or X-band (3-4 cm wavelength), given by keyword BAND_NAME.
Calculation of DIFFERENTIAL DOPPLER (column 14) requires data from
both bands; if available, the other values are taken from the file
identified by keyword SOURCE_PRODUCT_ID. If data from the other band
are not available, SOURCE_PRODUCT_ID is set to 'N/A'.
DSN_STATION_NUMBER identifies the antenna used to collect the data.
This is an ASCII table with 17 columns, delimited by ASCII spaces.
Each row has 256 bytes, the last two being a carriage-return (ASCII 13)
line-feed (ASCII 10) pair to delimit rows."
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "SAMPLE NUMBER"
DATA_TYPE = ASCII_INTEGER
START_BYTE = 1
BYTES = 4
UNIT = "N/A"
FORMAT = "I4"
DESCRIPTION = "The number of this row in the table, starting from 1 in
the first row."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "UTC TIME"
DATA_TYPE = TIME
START_BYTE = 6
BYTES = 26
UNIT = "N/A"
FORMAT = "N/A"
DESCRIPTION = "The UTC receiver date and time (t_r) of this measurement,
in the format YYYY-MM-DDThh:mm:ss.ffffff"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "DAY OF YEAR"
DATA_TYPE = ASCII_REAL
START_BYTE = 33
BYTES = 15
UNIT = "DAY"
FORMAT = "F15.11"
DESCRIPTION = "The day-of-year (and fraction) corresponding to UTC TIME
(column 2) where 1.00000000000 is at 0h on 1 January of
the current year."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "EPHEMERIS SECONDS"
DATA_TYPE = ASCII_REAL
START_BYTE = 49
BYTES = 16
UNIT = "SECOND"
FORMAT = "F16.6"
DESCRIPTION = "Elapsed terrestrial barycentric dynamic time (TDB) since
noon of the first calendar day of year 2000 (12:00
1 January 2000 TDB)."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 5
NAME = "GEOMETRIC IMPACT PARAMETER"
DATA_TYPE = ASCII_REAL
START_BYTE = 66
BYTES = 16
UNIT = "METER"
FORMAT = "F16.3"
DESCRIPTION = "For one-way observations, the closest approach distance
(impact parameter) of the downlink geometric ray with
respect to the reference body (Sun, planet, minor object,
etc.) for the photon received at UTC TIME. For two-way
observations, the average of the uplink and downlink
impact parameters. In both cases the calculation is
approximate, intended to provide a general sense of the
observing geometry and not meant for precision analysis."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 6
NAME = "TRANSMIT FREQUENCY RAMP REFERENCE TIME"
DATA_TYPE = TIME
START_BYTE = 83
BYTES = 19
UNIT = "N/A"
FORMAT = "N/A"
DESCRIPTION = "The time (t0) at the transmitter 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 + df*(t-t0)
For 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 one-way measurements f_t is the downlink frequency of
the spacecraft transmitter; the f_t photon will reach
the receiver one 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.
The format is YYYY-MM-DDThh:mm:ss
If the transmit time is not known or is irrelevant, the
value 0000-00-00T00:00:00 may appear."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 7
NAME = "TRANSMIT FREQUENCY - CONSTANT TERM"
DATA_TYPE = ASCII_REAL
START_BYTE = 103
BYTES = 17
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "The initial frequency f_0 of the transmit frequency
ramp (at t0).
If not known or irrelevant, the value -999999999.999999
may appear.
See DESCRIPTION for column 6."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 8
NAME = "TRANSMIT FREQUENCY - LINEAR TERM"
DATA_TYPE = ASCII_REAL
START_BYTE = 121
BYTES = 13
UNIT = "HERTZ PER SECOND"
FORMAT = "F13.6"
DESCRIPTION = "The time derivative (df) of the transmitted frequency
during the interval beginning at t0.
If not known or irrelevant, the value -99999.999999
may appear.
See DESCRIPTION for column 6."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 9
NAME = "OBSERVED ANTENNA FREQUENCY"
DATA_TYPE = ASCII_REAL
START_BYTE = 135
BYTES = 17
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "Frequency of the signal at the terminals of the
receiving antenna structure at UTC TIME (t_r).
Set to -999999999.999999 for missing or corrupted
data."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 10
NAME = "PREDICTED ANTENNA FREQUENCY"
DATA_TYPE = ASCII_REAL
START_BYTE = 153
BYTES = 17
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "Expected frequency of the signal at the terminals of the
receiving antenna structure at UTC TIME (t_r). The
calculation includes geometrical effects (relative
position and motions of ground station and spacecraft,
including Earth rotation and light time adjustments) and
tuning of the transmitter. The calculation also includes
a model-based correction for one- or two-way (as
appropriate) propagation through the Earth's neutral
atmosphere."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 11
NAME = "ATMOSPHERIC CORRECTION"
DATA_TYPE = ASCII_REAL
START_BYTE = 171
BYTES = 10
UNIT = "HERTZ"
FORMAT = "F10.6"
DESCRIPTION = "The model based correction applied in column 10 to account
for frequency changes resulting from passage of the one-
or two-way (as appropriate) signal through the Earth's
neutral atmosphere. If not used, set to -99.999999"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 12
NAME = "RESIDUAL CALIBRATED FREQUENCY SHIFT"
DATA_TYPE = ASCII_REAL
START_BYTE = 182
BYTES = 14
UNIT = "HERTZ"
FORMAT = "F14.6"
DESCRIPTION = "The value in column 9 minus the value in column 10."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 13
NAME = "RECEIVED SIGNAL LEVEL"
DATA_TYPE = ASCII_REAL
START_BYTE = 197
BYTES = 10
UNIT = "N/A"
FORMAT = "F10.4"
DESCRIPTION = "Signal intensity in decibels (dB) relative to an
arbitrary reference."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 14
NAME = "DIFFERENTIAL DOPPLER"
DATA_TYPE = ASCII_REAL
START_BYTE = 208
BYTES = 14
UNIT = "HERTZ"
FORMAT = "F14.6"
DESCRIPTION = "F_s - (3/11)*F_x where F_s and F_x are the
observed antenna frequencies at S- and X-bands,
respectively.
If BAND_NAME = X, F_x comes from column 9 in this
table and F_s comes from column 9 in the file
identified by SOURCE_PRODUCT_ID.
If BAND_NAME = S, F_s comes from column 9 in this
table and F_x comes from column 9 in the file
identified by SOURCE_PRODUCT_ID.
Set to -999999.999999 if either value is not available."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 15
NAME = "UNCERTAINTY - ANTENNA FREQUENCY"
DATA_TYPE = ASCII_REAL
START_BYTE = 223
BYTES = 10
UNIT = "HERTZ"
FORMAT = "F10.6"
DESCRIPTION = "Contribution of radiothermal noise to uncertainty in
OBSERVED ANTENNA FREQUENCY (column 9). Estimates for both
the signal frequency and the uncertainty are derived by
fitting a sinc function to a data spectrum."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 16
NAME = "SIGNAL QUALITY"
DATA_TYPE = ASCII_REAL
START_BYTE = 234
BYTES = 10
UNIT = "DECIBEL"
FORMAT = "F10.4"
DESCRIPTION = "Difference between RECEIVED SIGNAL LEVEL (column 13) and
SIGMA SIGNAL LEVEL (column 17), providing a measure of the
statistical variability of the data. Although the scaling
of the values in columns 13 and 17 is arbitrary, it is the
same; so their difference is not ambiguous."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 17
NAME = "UNCERTAINTY - RECEIVED SIGNAL LEVEL"
DATA_TYPE = ASCII_REAL
START_BYTE = 245
BYTES = 10
UNIT = "N/A"
FORMAT = "F10.4"
DESCRIPTION = "Contribution of radiothermal noise to uncertainty in
RECEIVED SIGNAL LEVEL (column 13). Estimates for both
the signal level and the uncertainty are derived by
fitting a sinc function to a data spectrum. Uses the
same arbitrary scale factor as column 13; units of dB."
END_OBJECT = COLUMN
END_OBJECT = TABLE
END
------------------------------------------------------------------------------
IFMS closed-loop products
=========================
Level 1a
========
The following label is an example PDS label for only one IFMS closed-loop
data file of data level 1a (D1X). The labels of the other IFMS level 1a
data files are very similar, the differences in the label headers are
listed in a table below the example label.
------------------------------------------------------------------------------
PDS_VERSION_ID = "PDS3"
DATA_SET_ID = "MEX-M-MRS-1/2/3-MCO-0013-V1.0"
PROCESSING_LEVEL_ID = 1
TARGET_NAME = "MARS"
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
INSTRUMENT_HOST_ID = "MEX"
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE"
INSTRUMENT_ID = "MRS"
PRODUCER_ID = "IFMS_ESA/NNO"
DSN_STATION_NUMBER = 32
PRODUCT_CREATION_TIME = 2005-01-14T10:05:56.000
STANDARD_DATA_PRODUCT_ID = "IFMS1"
SOURCE_PRODUCT_ID = "NN11_MEX1_2004_023_OP_D1_111918_0000"
SOFTWARE_NAME = "N/A"
DESCRIPTION = "This is an IFMS Closed Loop Doppler file
containing all the necessary information to
calculate the Doppler shift. This file begins with
a header which contains useful information about
the Doppler recording equipment of the ESA 35
meter radio antenna station at New Norcia (NNO):
the Intermediate Frequency & Modem System (IFMS).
A description can be found in the corresponding
level 1b data label file in the note which
describes the configuration_table. This level 1b
label file has almost the same file name as this
one. The only difference is that instead of 'L1A'
the file name contains 'L1B'. It can be found in
the corresponding subfolders under DATA/LEVEL1B/.
A short description can also be found under
section 13.1 in the file naming convention
document MEX-MRS-IGM-IS-3016 which is located
under DOCUMENT/MRS_DOC. For an even more
detailed description see chapter 6 in the IFSM-OCC
interface control document IFMS_OCCFTP which is
located under DOCUMENT/ESA_DOC.
Below the header section the data section starts:
The 1st column contains the SampleNumber.
The 2nd column contains the UTC ground received
time of measurement in the format:
CCYYMMDD.HHMMSS.sss .
The 3rd column contains the IntervalCount which is
the internal General Purpose Digital Signal
Processor (GDSP) 17.5 MHZ Numerically Controlled
Oscillator (NCO) clock counts since arbitrary
origin.
The 4th column contains the unwrapped CarrierPhase
which is the unwrapped phase of the internal GDSP
carrier NCO in unit cycle.
The 5th column is a flag to indicate whether
carrier is within the window of a known spurios
frequency (value in this case=YES) or not (value
is in this case=NO).
The 6th column is the accumulated DeltaDelay from
the data acquisition start in seconds. This value
is always one-way (More precisely: half the
two-way delta delay)."
^FILE = "M32ICL1L1A_D1X_040231119_00.RAW"
OBJECT = FILE
PRODUCT_ID = "M32ICL1L1A_D1X_040231119_00.RAW"
RECORD_TYPE = UNDEFINED
START_TIME = 2004-01-23T11:19:18.000
STOP_TIME = 2004-01-23T11:35:58.000
END_OBJECT = FILE
END
------------------------------------------------------------------------------
------------------------------------------------------------------------------
|IFMS level | Product_Id | Source_Product_Id |
|1b data type | | |
------------------------------------------------------------------------------
|D1X |M32ICL1L1A_D1X_040931103_00.LBL| NN11_MEX1_2004_093_OP_D1_ |
| | | 110358_0000 |
|D1S |M32ICL1L1A_D1S_040931103_00.LBL| NN13_MEX1_2004_093_OP_D1_ |
| | | 110358_0000 |
|D2X |M32ICL1L1A_D2X_040931103_00.LBL| NN11_MEX1_2004_093_OP_D2_ |
| | | 110358_0000 |
|D2S |M32ICL1L1A_D2S_040931103_00.LBL| NN13_MEX1_2004_093_OP_D2_ |
| | | 110358_0000 |
|RGX |M32ICL1L1A_RGX_040931103_00.LBL| NN11_MEX1_2004_093_OP_RG_ |
| | | 110358_0000 |
|RGS |M32ICL1L1A_RGS_040931103_00.LBL| NN13_MEX1_2004_093_OP_RG_ |
| | | 110358_0000 |
|RCX |M32ICL1L1A_RCX_040931103_00.LBL| NN11_MEX1_2004_093_CL_RG_ |
| | | 110358_0000 |
|RCS |M32ICL1L1A_RCS_040931103_00.LBL| NN13_MEX1_2004_093_CL_RG_ |
| | | 110358_0000 |
|AG1 |M32ICL1L1A_AG1_040931103_00.LBL| NN11_MEX1_2004_093_OP_G1_ |
| | | 110358_0000 |
|AG2 |M32ICL1L1A_AG2_040931103_00.LBL| NN11_MEX1_2004_093_OP_G2_ |
| | | 110358_0000 |
|MET |M32ICL1L1A_MET_040931103_00.LBL| NN11_MEX1_2004_093_OP_ME_ |
| | | 110358_0000 |
------------------------------------------------------------------------------
Level 1b
========
The following label is an example PDS label for only one IFMS closed-loop
data file of data level 1b (D1X). The labels of the other IFMS level 1b
data files are very similar, the differences in the label headers are
listed in a table below the example label.
------------------------------------------------------------------------------
PDS_VERSION_ID = "PDS3"
DATA_SET_ID = "MEX-M-MRS-1/2/3-MCO-0013-V1.0"
PROCESSING_LEVEL_ID = 2
TARGET_NAME = "MARS"
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
INSTRUMENT_HOST_ID = "MEX"
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE"
INSTRUMENT_ID = "MRS"
PRODUCER_ID = "IGM_COLOGNE"
DSN_STATION_NUMBER = 32
PRODUCT_CREATION_TIME = 2005-01-14T10:05:56.000
STANDARD_DATA_PRODUCT_ID = "IFMS1"
SOURCE_PRODUCT_ID = "M32ICL1L1A_D1X_040231119_00.LBL"
SOFTWARE_NAME = "IFMS-READ-PROGRAM1.0"
DESCRIPTION = "This label describes two files which apart from
the file ending .CFG and .TAB have the same name
as this .LBL file. The .CFG file is a ASCII text
file and contains configuration information about
the Intermediate Frequency & Modem System (IFMS).
The .TAB file contains the actual data. For
more information see the description of the .TAB
file and the note for the .CFG text file below."
OBJECT = FILE
PRODUCT_ID = "M32ICL1L1B_D1X_040231119_00.TAB"
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 140
FILE_RECORDS = 1001
START_TIME = 2004-01-23T11:19:18.000
STOP_TIME = 2004-01-23T11:35:58.000
DESCRIPTION = "This is an IFMS Closed Loop Doppler file
containing necessary information to calculate
the Doppler shift. For more information see
column description."
^DOPPLER_TABLE = "M32ICL1L1B_D1X_040231119_00.TAB"
OBJECT = DOPPLER_TABLE
NAME = DOPPLER_DATA
INTERCHANGE_FORMAT = ASCII
ROWS = 1001
COLUMNS = 8
ROW_BYTES = 140
OBJECT = COLUMN
NAME = "SAMPLE NUMBER"
COLUMN_NUMBER = 1
START_BYTE = 1
BYTES = 21
DATA_TYPE = ASCII_INTEGER
UNIT = "N/A"
DESCRIPTION = "IDENTIFIER OF THE CURRENT SAMPLE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ISO-FORMATTED TIME STRING"
COLUMN_NUMBER = 2
START_BYTE = 22
BYTES = 24
DATA_TYPE = TIME
UNIT = "N/A"
DESCRIPTION = "GROUND RECEIVED SAMPLE TIME IN
UTC.THE FORMAT IS
CCYY-MM-DDTHH:MM:SS.sss"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DAY OF YEAR"
COLUMN_NUMBER = 3
START_BYTE = 46
BYTES = 13
DATA_TYPE = ASCII_REAL
UNIT = "DAY"
DESCRIPTION = "GROUND RECEIVED UTC SAMPLE
TIME IN FRACTIONAL DAYS OF YEAR
STARTING WITH 1.00000000 AT
MIDNIGHT (0 H) ON 1 JANUARY."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "EPHEMERIS TIME"
COLUMN_NUMBER = 4
START_BYTE = 59
BYTES = 17
DATA_TYPE = ASCII_REAL
UNIT = "SECOND"
DESCRIPTION = "GROUND RECEIVED SAMPLE TIME IN
EPHEMERIS TIME STARTING FROM
J2000 (12 h 1 January 2000 TDB)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "INTERVAL COUNT"
COLUMN_NUMBER = 5
START_BYTE = 76
BYTES = 21
DATA_TYPE = ASCII_INTEGER
UNIT = "N/A"
DESCRIPTION = "INTERNAL GENERAL PURPOSE DIGITAL
SIGNAL PROCESSOR (GDSP) 17.5 MHz
NUMERICALLY CONTROLLED OSCILLATOR
(NCO) CLOCK COUNT SINCE ARBITRARY
ORIGIN"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "UNWRAPPED PHASE"
COLUMN_NUMBER = 6
START_BYTE = 97
BYTES = 21
DATA_TYPE = ASCII_REAL
UNIT = "CYCLE"
DESCRIPTION = "UNWRAPPED PHASE OF THE INTERNAL
GDSP (GENERAL PURPOSE DIGITAL
SIGNAL PROCESSOR) CARRIER
NUMERICALLY CONTROLLED
OSCILLATOR (NCO)"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPURIOUS CARRIER"
COLUMN_NUMBER = 7
START_BYTE = 118
BYTES = 2
DATA_TYPE = ASCII_INTEGER
UNIT = "N/A"
DESCRIPTION = "PSEUDO LOGICAL FLAG INDICATING
CARRIER IS WITHIN THE WINDOW OF A
KNOWN SPURIOUS FREQUENCY. CAN ONLY
BE 0 (NO SPURIOUS CARRIER)
OR 1 (SPURIOUS CARRIER)"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DELTA DELAY"
COLUMN_NUMBER = 8
START_BYTE = 120
BYTES = 20
DATA_TYPE = ASCII_REAL
UNIT = "SECOND"
DESCRIPTION = "ACCUMULATED DELTA DELAY FROM THE
DATA ACQUISITION PROCESS (DAP)
START. THIS VALUE IS ALWAYS
ONE WAY (MORE PRECISELY: HALF THE
TWO-WAY DELTA DELAY)"
END_OBJECT = COLUMN
END_OBJECT = DOPPLER_TABLE
END_OBJECT = FILE
OBJECT = FILE
PRODUCT_ID = "M32ICL1L1B_D1X_040231119_00.CFG"
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 17377
FILE_RECORDS = 1
START_TIME = 2004-01-23T11:19:18.000
STOP_TIME = 2004-01-23T11:35:58.000
^CONFIGURATION_TEXT = "M32ICL1L1B_D1X_040231119_00.CFG"
OBJECT = TEXT
NOTE = "The .CFG file contains a table with
useful information about the Doppler
recording equipment of the ESA 35 meter
radio antenna station at New Norcia (NNO):
the Intermediate Frequency & Modem System
(IFMS). It is in principle the same as the
header of the corresponding raw data file
in the Level 1A folder. The only
difference is that the second column, the
sample time in UTC was reformated to ISO
format. In additon two other columns with
sample time as UTC in fraction of day of
year and sample time as ephemeris time in
seconds were inserted. See column
description of the TABLE object above. In
addition the flag values were changed from
YES and NO in the 1A file to the numerical
values 1 and 0 in the 1B file.
For data processors a brief description of
the most important keywords:
IMPORTANT NOTE: IF ONE OR MORE OF THE
FOLLOWING KEYWORDS HAS VALUES N/A THEN
PROBABLY SOMETHING WENT WRONG WITH DATA
RECORDING OR/AND SIGNAL RECEIVING!
DAP_TYPE identifies which Data
Acquisiton Process (DAP) was used for the
data file. There are two subrecording
systems for each IFMS receiving device
denoted by the numbers 1 and 2.
DAP_TYPE = D1 identifies Doppler data from
recording system 1
DAP_TYPE = D2 identifies Doppler data from
recording system 2
DAP_TYPE = G1 identifies Auto Gain Control
(AGC) data from recording system 1
DAP_TYPE = G2 identifies Auto Gain Control
(AGC) data from recording system 2
DAP_TYPE = ME identifies meteo data
DAP_TYPE = RG identifies ranging data
FIRST_SAMPLE_TIME and LAST_SAMPLE_TIME
give the time of the first and last sample
recorded in the corresponding data file in
UTC: Format (CCYYMMDD.HHMMSS.sss).
Example: 20040621.025208.000 corresponds
to the 2004-06-21T02:52:08.000 in UTC.
SAMPLE_PERIOD is the time elapsed between
tosubsequent measurements in seconds.
ACTUAL_CARRIER_INDIC provides the actual
uplink carrier frequency offset as
follows: ActualCarrierFreqOffset= 50 MHZ -
actual_carrier_indic x 17.5E6/2EXP30.
ACTUAL_TONE_INDIC (only meaningful for
ranging data) provides the actual tone
frequency as follows:
tone_frequency=actual_tone_indic x
17.4E6/2EXP32 Hz.
RG_DATA_CORRECTED: (only meaningful for
ranging data) Flag to indicate whether the
measurements during the ambiguity
resolution process have been corrected.
The following keywords are needed to
compute the actual uplink and downlink
frequency: Modulator used to generate
the output carrier frequency. Can assume
the values 70 or 230 MHz.For each DAP_TYPE
there is a corresponding SOURCE keyword of
the form DAP_TYPESource (Example: D1Source
, D2Source etc.) which can be found
further down in the .CFG table and can
assume one of the following values:
Rgd,Rcd,Scd.These are abbreviations for
Ranging receiver and demodulater, Remnant
and Suppress Carrier demodulators. Only
the DAP_TYPESource value corresponding to
the actual DAP_TYPE as indicated in the
4th row of the .CFG table is meaningful
for the corresponding data file.
For ranging data DAP_TYPESource is always
equal RGD thus there is no such keyword as
RgSource.For each DAP_TYPESource value
existtwo other important keywords of the
form:
DAP_TYPESourceUplkConv and
DAP_TYPESourceDnlkConv
(Example RgdUplkConv, RgdDnlkConv)
Now the uplink frequency can be computed
by:
UplinkCarrierFreq=UlmCarFrSel
+ ActualCarrierFreqOffset
+ DAP_TYPESourceUplkConv
The two keywords DAP_TYPESourceTR1 and
DAP_TYPESourceTR2 provide the transponder
ratio DAP_TYPESourceTR1/DAP_TYPESourceTR2
with which the frequency of the incoming
radio signal on board the space craft was
multiplied to generate a coherent downlink
frequency.
Further explanation of the IFMS
configuration file format can be found
under section 13.1 in the file naming
convention document MEX-MRS-IGM-IS-3016
which is located under DOCUMENT/MRS_DOC .
For an even more detailed description see
chapter 6 in the IFSM-OCC interface
control document IFMS_OCCFTP which is
located under DOCUMENT/ESA_DOC . "
INTERCHANGE_FORMAT = ASCII
PUBLICATION_DATE = 2004-09-21
END_OBJECT = TEXT
END_OBJECT = FILE
END
------------------------------------------------------------------------------
------------------------------------------------------------------------------
|IFMS level | Product_Id | Source_Product_Id |
|1b data type| | |
------------------------------------------------------------------------------
|D1X |M32ICL1L1B_D1X_040931103_00.LBL|M32ICL1L1A_D1X_040931103_00.LBL|
|D1S |M32ICL1L1B_D1S_040931103_00.LBL|M32ICL1L1A_D1S_040931103_00.LBL|
|D2X |M32ICL1L1B_D2X_040931103_00.LBL|M32ICL1L1A_D2X_040931103_00.LBL|
|D2S |M32ICL1L1B_D2S_040931103_00.LBL|M32ICL1L1A_D2S_040931103_00.LBL|
|RGX |M32ICL1L1B_RGX_040931103_00.LBL|M32ICL1L1A_RGX_040931103_00.LBL|
|RGS |M32ICL1L1B_RGS_040931103_00.LBL|M32ICL1L1A_RGS_040931103_00.LBL|
|RCX |M32ICL1L1B_RCX_040931103_00.LBL|M32ICL1L1A_RCX_040931103_00.LBL|
|RCS |M32ICL1L1B_RCS_040931103_00.LBL|M32ICL1L1A_RCS_040931103_00.LBL|
|AG1 |M32ICL1L1B_AG1_040931103_00.LBL|M32ICL1L1A_AG1_040931103_00.LBL|
|AG2 |M32ICL1L1B_AG2_040931103_00.LBL|M32ICL1L1A_AG2_040931103_00.LBL|
|MET |M32ICL1L1B_MET_040931103_00.LBL|M32ICL1L1A_MET_040931103_00.LBL|
------------------------------------------------------------------------------
Level 02
========
The following label is an example PDS label for only one IFMS closed-loop
data file of data level 2 (D1X). The labels of the other IFMS level 2 data
files are very similar, the differences in the label headers are listed in
a table below the example label.
------------------------------------------------------------------------------
PDS_VERSION_ID = "PDS3"
DATA_SET_ID = "MEX-M-MRS-1/2/3-MCO-0013-V1.0"
PROCESSING_LEVEL_ID = 3
TARGET_NAME = "MARS"
OBSERVATION_TYPE = "COMMISSIONING"
INSTRUMENT_HOST_NAME = "MARS EXPRESS"
INSTRUMENT_HOST_ID = "MEX"
INSTRUMENT_NAME = "MARS EXPRESS ORBITER RADIO SCIENCE"
INSTRUMENT_ID = "MRS"
PRODUCER_ID = "IGM_COLOGNE"
DSN_STATION_NUMBER = 32
PRODUCT_CREATION_TIME = 2005-01-13T16:53:53.000
STANDARD_DATA_PRODUCT_ID = "IFMS1"
SOURCE_PRODUCT_ID = {"NN11_MEX1_2004_023_OP_D1_111918_000"}
SOFTWARE_NAME = "IFMS-DOPPLER-1ATO2-PROGRAM1.0"
DESCRIPTION = "This is a calibrated IFMS Closed Loop Doppler
file containing skyfrequency, impact parameter,
observed and calibrated Doppler shift in
frequency, AGC and Differential Doppler.
The ORIGINAL_PRODUCT_ID mentioned in the following
Label Header links to the Original ESA IFMS File,
which is not PDS compliant. The equivalent source
file with a PDS compliant filename can be found in
the LEVEL 1A data directory.
For more information see column description."
OBJECT = FILE
PRODUCT_ID = "M32ICL1L02_D1X_040231119_00.TAB"
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 268
FILE_RECORDS = 999
START_TIME = 2004-01-23T11:19:19.000
STOP_TIME = 2004-01-23T11:35:56.000
^DOPPLER_TABLE = "M32ICL1L02_D1X_040231119_00.TAB"
OBJECT = DOPPLER_TABLE
NAME = DOPPLER_DATA
INTERCHANGE_FORMAT = ASCII
ROWS = 999
COLUMNS = 17
ROW_BYTES = 268
OBJECT = COLUMN
COLUMN_NUMBER = 1
NAME = "SAMPLE NUMBER"
DATA_TYPE = ASCII_INTEGER
START_BYTE = 1
BYTES = 5
UNIT = "N/A"
FORMAT = "I5.5"
DESCRIPTION = "The number of this row in the table,
starting from 1 in the first row."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 2
NAME = "UTC TIME"
DATA_TYPE = TIME
START_BYTE = 8
BYTES = 23
UNIT = "N/A"
FORMAT = "A23"
DESCRIPTION = "The UTC receiver date and time (t_r)
of this measurement, in the format
YYYY-MM-DDThh:mm:ss.fff"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 3
NAME = "FRACTIONS OF DAY OF YEAR"
DATA_TYPE = ASCII_REAL
START_BYTE = 33
BYTES = 14
UNIT = "DAY"
FORMAT = "F14.10"
DESCRIPTION = "The day-of-year (and fraction)
corresponding to UTC TIME (column 2)
where 1.0000000000 is at 0h on 1 January
of the current year."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 4
NAME = "EPHEMERIS SECONDS"
START_BYTE = 49
BYTES = 16
DATA_TYPE = ASCII_REAL
UNIT = "SECOND"
FORMAT = "F16.6"
DESCRIPTION = "Seconds from 12h 1 January 2000 TDB
corresponding to UTC TIME (column 2);
includes leap seconds, if any."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 5
NAME = "DISTANCE"
START_BYTE = 67
BYTES = 15
DATA_TYPE = ASCII_REAL
UNIT = "KILOMETER"
FORMAT = "F15.6"
DESCRIPTION = "Propagation observations: For one-way
observations, the impact parameter of the
downlink geometric ray with respect to
the reference body (Sun, planet, minor
object, etc.) when the photon received at
UTC TIME was closest to the body. For
two-way observations, the average of the
uplink and downlink impact parameters. In
both cases the calculation is an
approximation, intended to provide a
general sense of the observation geometry
and not meant for precision analysis.
Gravity observations: the geometric
distance of the spacecraft from the center
of mass of the reference body when the
spacecraft transmitted the photon which
was received on Earth at UTC TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 6
NAME = "TRANSMIT FREQUENCY RAMP REFERENCE TIME"
START_BYTE = 84
BYTES = 23
DATA_TYPE = TIME
UNIT = "N/A"
FORMAT = "A23"
DESCRIPTION = "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 + df*(t-t0)
For 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 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.
The format is YYYY-MM-DDThh:mm:ss.fff
If the transmit time is not known or is
irrelevant, the value
0000-00-00T00:00:00.000 may appear."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 7
NAME = "TRANSMIT FREQUENCY - CONSTANT TERM"
START_BYTE = 109
BYTES = 17
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "The initial frequency f_0 of the
transmit frequency ramp (at t0).
If not known or irrelevant, the value
-999999999.999999 may appear.
See DESCRIPTION in column 6."
INVALID_CONSTANT = -999999999.999999
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 8
NAME = "TRANSMIT FREQUENCY - LINEAR TERM"
START_BYTE = 128
BYTES = 13
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ PER SECOND"
FORMAT = "F13.6"
DESCRIPTION = "The time derivative (df) of the
transmitted frequency during the
interval beginning at t0.
If not known or irrelevant, the value
-99999.999999 may appear.
See DESCRIPTION in column 6."
INVALID_CONSTANT = -99999.999999
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 9
NAME = "OBSERVED X-BAND ANTENNA FREQUENCY"
START_BYTE = 143
BYTES = 17
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "Frequency of the signal at the terminals
of the receiving antenna structure at UTC
TIME (t_r).
Set to -999999999.999999 for missing or
corrupted data."
INVALID_CONSTANT = -999999999.999999
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 10
NAME = "PREDICTED X-BAND ANTENNA FREQUENCY"
START_BYTE = 162
BYTES = 17
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "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 (tr). The calculation
includes geometrical effects (relative
positions and motions of ground station and
spacecraft, including Earth rotation and
light time adjustments) and a model-based
correction for one- or two-way (as
appropriate) propagation through the
Earths neutral atmosphere.
Gravity observations: the calculation includes
addition a correction for one- or two-way (as
appropriate) propagation through the
Earths ionosphere"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 11
NAME = "CORRECTION OF EARTH ATMOSPHERE
PROPAGATION"
START_BYTE = 181
BYTES = 9
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F9.6"
DESCRIPTION = "Correction term for the propagation of
the signal in the Earth atmosphere, based
on meteorological data observed at the
ground station site (MET-files)"
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 12
NAME = "RESIDUAL CALIBRATED X-BAND FREQUENCY SHIFT"
START_BYTE = 192
BYTES = 15
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F15.6"
DESCRIPTION = "Value in column 9 minus value
in column 10."
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 13
NAME = "SIGNAL LEVEL"
START_BYTE = 209
BYTES = 6
DATA_TYPE = ASCII_REAL
UNIT = "DECIBEL RELATIVE TO ONE MILLIWATT"
FORMAT = "F6.1"
DESCRIPTION = "Signal level from AGC in decibels relative
to one milliwatt (dBm). For open-loop this
value is set to -999.9"
INVALID_CONSTANT = -999.9
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 14
NAME = "DIFFERENTIAL DOPPLER"
START_BYTE = 217
BYTES = 17
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F17.6"
DESCRIPTION = "F_s - (3/11)*F_x where F_s and F_x
are the received signal frequencies at
S- and X-bands, respectively.
Set to -999.999999 if either value is
not available."
INVALID_CONSTANT = -999.999999
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 15
NAME = "SIGMA OBSERVED ANTENNA FREQUENCY IN X-BAND"
START_BYTE = 236
BYTES = 13
DATA_TYPE = ASCII_REAL
UNIT = "HERTZ"
FORMAT = "F13.6"
DESCRIPTION = "A statistical measure of the error in
determining OBSERVED ANTENNA FREQUENCY
(column 9) based on fit of a data spectrum
to a sinc function. Only available for
open-loop, if closed-loop this column is
set -99999.999999"
INVALID_CONSTANT = -99999.999999
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 16
NAME = "SIGNAL QUALITY X-BAND"
START_BYTE = 251
BYTES = 6
DATA_TYPE = ASCII_REAL
UNIT = "DECIBEL"
FORMAT = "F6.1"
DESCRIPTION = "Only available for open-loop,
if closed-loop this column is set -999.9"
INVALID_CONSTANT = -999.9
END_OBJECT = COLUMN
OBJECT = COLUMN
COLUMN_NUMBER = 17
NAME = "SIGMA SIGNAL LEVEL X-BAND"
START_BYTE = 259
BYTES = 6
DATA_TYPE = ASCII_REAL
UNIT = "DECIBEL"
FORMAT = "F6.1"
DESCRIPTION = "Only available for open-loop,
if closed-loop this column is set -999.9"
INVALID_CONSTANT = -999.9
END_OBJECT = COLUMN
END_OBJECT = DOPPLER_TABLE
END_OBJECT = FILE
END
------------------------------------------------------------------------------
------------------------------------------------------------------------------
|IFMS level | Product_Id | Source_Product_Id |
|02 data type | | |
------------------------------------------------------------------------------
|D1X |M32ICL1L02_D1X_040931103_00.LBL| NN11_MEX1_2004_093_OP_D1_ |
| | | 110358_0000 |
|D1S |M32ICL1L02_D1S_040931103_00.LBL| NN13_MEX1_2004_093_OP_D1_ |
| | | 110358_0000 |
|D2X |M32ICL1L02_D2X_040931103_00.LBL| NN11_MEX1_2004_093_OP_D2_ |
| | | 110358_0000 |
|D2S |M32ICL1L02_D2S_040931103_00.LBL| NN13_MEX1_2004_093_OP_D2_ |
| | | 110358_0000 |
|RGX |M32ICL1L02_RGX_040931103_00.LBL| NN11_MEX1_2004_093_OP_RG_ |
| | | 110358_0000 |
|RGS |M32ICL1L02_RGS_040931103_00.LBL| NN13_MEX1_2004_093_OP_RG_ |
| | | 110358_0000 |
|RCX |M32ICL1L02_RCX_040931103_00.LBL| NN11_MEX1_2004_093_CL_RG_ |
| | | 110358_0000 |
|RCS |M32ICL1L02_RCS_040931103_00.LBL| NN13_MEX1_2004_093_CL_RG_ |
| | | 110358_0000 |
------------------------------------------------------------------------------
IFMS open-loop products
=======================
Level 1a
========
Since there have not been any measurements in the open-loop mode yet, we
have not produced any open-loop data files and labels. But the format of
the data and label files will almost be the same.
Level 02
========
Since there have not been any measurements in the open-loop mode yet, we
have not produced any open-loop data files and labels. But the format of
the data and label files will almost be the same.