PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM RELEASE_ID = 0001 REVISION_ID = 0000 INSTRUMENT_HOST_NAME = "MARS EXPRESS" INSTRUMENT_HOST_ID = "MEX" MISSION_NAME = "MARS EXPRESS" OBJECT = TEXT PUBLICATION_DATE = 2010-07-29 NOTE = "MEX PFS STANDARD DATA ARCHIVE" END_OBJECT = TEXT END MEX PFS STANDARD DATA ARCHIVE 1. Overview ============================================================================== This archive contains data from the Planetary Fourier Spectrometr (PFS) instrument from the Mars Express mission. It is a double pendulum Fourier Transform interferometer, with capabilities similar to the Mariner 9 IRIS experiment at thermal infrared wavelengths (250 to 1700 cm-1 or 5.5 to 45 microns), but it adds a Short Wavelength channel covering the spectral range form 1700 to 8200 cm-1 (1.2 to 5.7 microns). The spectral resolution is the same over the entire spectral range :1.3 cm-1 The general scientific objectives of PFS is to study Mars atmosphere. The specific science measurements to carry out these goals are: 1. Solve the problem of the inversion of the 15 microns CO2 band 2. Obtain the vertical temperature profile without any assumptions about ground pressure and temperature, and retrive the dust content of the atmosphere. 3. Complete global coverage of Mars in each season, to study seasonal variations in the global circulation 4. Study the mixing ratio of trace gases in the Martian atmosphere 5. To Study (if possible) the mineralogic composition of the soil, stressing the importance of high spectral resolution to identify hydrated minerals and to resolve polar caps ice composition. The PFS archived data sets contain data measurements necessary to satisfy the scientific goals and objectives. Getting Started: ---------------- For more information and detail concerning the organization and contents of the PFS data sets, refer to the PFS Experiment to Archive Interface Control Document (EAICD) found in the DOCUMENT directory (MEX-PFS-PSA-ICD-25). Look in the DOCUMENT directory for the following: Instrument Description Documents PFS_ON_MARS_EXPRESS.PDF - Provides detailed information about the PFS experiment, instrumentation, and data measurements. Calibration Documents PFS_SWC_CALIB.PDF and PFS_LWC_CALIB.PDF- Provides calibration information for the two PFS channel. 2. Online Deliveries and Data Releases ============================================================================== The PFS data files and labels are organized onto logical archive e-volumes (electronic volumes). A single PFS data set for a specified time interval is organized as a single archive e-volume. The PSA release object/mechanism is used for archive e-volume generation and submission. This means that each logical e-volume is a data release since they are for specific time periods. In other words, a logical archive e-volume is identical to a data set release. The collection of data set releases comprises the entire data set (all data for the whole mission). Once the data and files are generated and organized for a data release, the archive e-volume (or data set release) is ready for validation. The PSA Volume Validation (PVV) software tool is used to ensure all files are present and conform to PSA/PDS standards and to deliver the e-volume to PSA/PDS. 3. File Formats ============================================================================== A PDS TABLE object is used for the PFS data, and the data are in binary form. Files formatare specified through the EIACD documents, and implicitly in the provided routines in SOFTWARE directory. 4. Applicable Software ============================================================================== PFS archive can be easily read by all PDS standard reader (i.e. Nasa VIEW) or by provided routines in SOFTWARE direcotry. Routines are in IDL/RSI language and they are intended as module only for data reading. The user can use these routines as input to more complex Data Analisys software. 5. Whom to Contact for Information ============================================================================== MEX Project Scientist: A. Chicarro email: achicarr@rssd.esa.int phone: (31) 71 565 3613 fax: (31) 71 565 4697 smail: Postbus 290, 2200 AG Noordwijk, NL MEX Archive Manager: J.J. Zender e-mail: jzender@rssd.esa.int phone: (31) 71 565 4919 fax: (31) 71 565 4697 smail: Postbus 290, 2200 AG Noordwijk, NL For any PSA related issues: PSA Helpdesk: psahelp@rssd.esa.int PFS PI: Prof. Vittorio Formisano via del Fosso del Cavaliere, 100. 00133 Roma, Italy email: vittorio.formisano@ifsi-roma.inaf.i Archive Manager: Giuseppe Sindoni via del Fosso del Cavaliere, 100. 00133 Roma, Italy email: giuseppe.sindoni@ifsi-roma.inaf.it 6. Cognizant Persons ============================================================================== PSA: Mr. Joe Zender, ESA Planetary Science Archive Manager ESA Space and Technology Center (ESTEC), Noordwijk, Holland PSA: Dr. Dave Heather, Mars Express Archive Scientist ESA Space and Technology Center (ESTEC), Noordwijk, Holland