PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 80 OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2004-10-21 NOTE = "N/A" END_OBJECT = TEXT END 2001 Mars Odyssey Radio Science Raw Data Archive Mars Mapping Phase (ODY-M-RSS-1-RAW-V1.0) AAREADME.TXT R.A. Simpson Stanford University ============================================================================== INTRODUCTION ============================================================================== This compact disc contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the final stages of the Aerobraking phase (January and early February 2002) and/or the Mapping (MAP) phase (late February 2002 and later) of the 2001 Mars Odyssey (ODY) mission. The radio observations were carried out using the ODY spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The observations were designed to provide information for the ODY Navigation Team to reconstruct and predict the spacecraft trajectory. The data may also have value in improving the model of the gravity field of Mars. Each disc in the volume set contains data from part of the MAP period. The Mapping phase began in February 2002 and was scheduled to run for one Mars year. Data are organized in approximate chronological order; receipt of data at Stanford was generally more important in determining placement than strict order of generation or applicability. A table of contents is included with each volume, listing each file in the volume; a separate table of contents shows all files within the set of volumes. The table below lists the individual volumes (CDs) created to date and (very briefly) their respective contents. Start and End dates reflect the dates covered by the included Orbit Data Files (ODFs). VOLUME_ID Start Date End Date Notes --------- ------------------- ------------------- ------------------------- ODRS_0001 2002-01-01 (02/001) 2002-02-25 (02/056) ODRS_0002 2002-02-25 (02/056) 2002-03-08 (02/067) ODRS_0003 2002-03-08 (02/067) 2002-03-14 (02/073) ODRS_0004 2002-03-14 (02/073) 2002-03-15 (02/074) Mostly ATDFs ODRS_0005 2002-03-15 (02/074) 2002-03-21 (02/080) ODRS_0006 2002-03-21 (02/080) 2002-04-05 (02/095) ODRS_0007 2002-04-05 (02/095) 2002-05-23 (02/143) SFFs since January ODRS_0008 2002-05-24 (02/144) 2002-07-09 (02/190) includes Jan TDFs ODRS_0009 2002-07-09 (02/190) 2002-08-05 (02/217) early solar conj RSRs ODRS_0010 2002-08-05 (02/217) 2002-08-15 (02/227) conj RSRs; January TDFs ODRS_0011 2002-08-15 (02/227) 2002-09-05 (02/248) ODRS_0012 2002-09-05 (02/248) 2002-09-09 (02/252) Mostly TDFs ODRS_0013 2002-09-09 (02/252) 2002-09-10 (02/253) Mostly TDFs ODRS_0014 2002-09-10 (02/253) 2002-10-02 (02/275) ODRS_0015 2002-10-02 (02/275) 2002-10-10 (02/283) Mostly TDFs ODRS_0016 2002-10-10 (02/283) 2002-11-05 (02/309) ODRS_0017 2002-11-05 (02/309) 2002-11-07 (02/311) Mostly TDFs ODRS_0018 2002-11-07 (02/311) 2002-11-18 (02/322) Mostly TDFs; early SFFs ODRS_0019 2002-11-18 (02/322) 2002-11-21 (02/325) Mostly TDFs ODRS_0020 2002-11-21 (02/325) 2002-12-03 (02/337) Nov 02 monthly files ODRS_0021 2002-12-03 (02/337) 2002-12-10 (02/344) ODRS_0022 2002-12-11 (02/345) 2003-01-03 (03/003) Dec 02 monthly files ODRS_0023 2003-01-03 (03/003) 2003-01-31 (03/031) Jan 03 monthly files ODRS_0024 2003-01-31 (03/031) 2003-03-03 (03/062) Feb 03 monthly files ODRS_0025 2003-03-03 (03/062) 2003-03-31 (03/090) Mar 03 monthly files ODRS_0026 2003-03-31 (03/090) 2003-04-25 (03/115) ODFs and TNFs ODRS_0027 2003-04-26 (03/116) 2003-05-08 (03/128) Apr 03 monthly files ODRS_0028 2003-05-08 (03/128) 2003-05-13 (03/133) ODFs and TNFs ODRS_0029 2003-05-13 (03/133) 2003-06-02 (03/153) May 03 monthly files ODRS_0030 2003-06-02 (03/153) 2003-06-24 (03/175) ODFs and TNFs ODRS_0031 2003-06-24 (03/175) 2003-06-30 (03/181) June 03 monthly files ODRS_0032 2003-06-30 (03/181) 2003-07-17 (03/198) ODFs, TNFs, and SFFs ODRS_0033 2003-07-17 (03/198) 2003-08-07 (03/219) July 03 monthly files ODRS_0034 2003-08-07 (03/219) 2003-08-28 (03/240) ODFs and TNFs ODRS_0035 2003-08-28 (03/240) 2003-09-04 (03/247) Aug 03 monthly files ODRS_0036 2003-09-04 (03/247) 2003-09-19 (03/262) ODFs,TNFs,SFFs, old SPK ODRS_0037 2003-09-19 (03/262) 2003-10-01 (03/274) Sep 03 monthly files ODRS_0038 2003-10-01 (03/274) 2003-10-13 (03/286) ODFs, TNFs, SFFs ODRS_0039 2003-10-13 (03/286) 2003-11-05 (03/309) Oct 03 monthly files ODRS_0040 2003-11-06 (03/310) 2003-11-07 (03/311) ODFs, TNFs ODRS_0041 2003-11-07 (03/311) 2003-11-26 (03/330) ODFs, TNFs ODRS_0042 2003-11-26 (03/330) 2003-12-03 (03/337) Nov 03 monthly files ODRS_0043 2003-12-03 (03/337) 2003-12-30 (03/364) ODFs, TNFs, SFFs ODRS_0044 2003-12-30 (03/364) 2004-01-12 (04/012) ODFs, TNFs ODRS_0045 2004-01-12 (04/012) 2004-01-23 (04/023) ODFs, TNFs ODRS_0046 2004-01-23 (04/023) 2004-01-30 (04/030) ODFs, TNFs ODRS_0047 2004-01-30 (04/030) 2004-02-04 (04/035) Dec 03, Jan 04 files ODRS_0048 2004-02-04 (04/035) 2004-02-17 (04/048) ODFs, SFFs, TNFs ODRS_0049 2004-02-17 (04/048) 2004-03-03 (04/063) Feb 04 files ODRS_0050 2004-03-03 (04/063) 2004-03-04 (04/064) TNF's ODRS_0051 2004-03-04 (04/064) 2004-03-09 (04/069) Mar 04 files ODRS_0052 2004-03-09 (04/069) 2004-03-22 (04/082) ODFs, TNFs ODRS_0053 2004-03-22 (04/082) 2004-03-30 (04/090) ODFs, TNFs ODRS_0054 2004-03-30 (04/090) 2004-04-12 (04/103) ODFs, TNFs ODRS_0055 2004-04-12 (04/103) 2004-04-19 (04/110) ODFs, TNFs ODRS_0056 2004-04-19 (04/110) 2004-04-29 (04/120) ODFs, TNFs ODRS_0057 2004-04-29 (04/120) 2004-05-10 (04/131) ODFs, TNFs ODRS_0058 2004-05-10 (04/131) 2004-05-20 (04/141) ODFs, TNFs ODRS_0059 2004-05-20 (04/141) 2004-06-01 (04/153) ODFs, TNFs ODRS_0060 2004-06-01 (04/153) 2004-06-07 (04/159) Apr, May 04 files ODRS_0061 2004-06-07 (04/159) 2004-06-14 (04/166) ODFs, TNFs ODRS_0062 2004-06-14 (04/166) 2004-06-25 (04/177) ODFs, TNFs ODRS_0063 2004-06-25 (04/177) 2004-06-30 (04/182) June 04 files ODRS_0064 2004-06-30 (04/182) 2004-07-12 (04/194) ODFs, TNFs ODRS_0065 2004-07-12 (04/194) 2004-07-22 (04/204) ODFs, TNFs ODRS_0066 2004-07-22 (04/204) 2004-08-02 (04/215) July 04 files ODRS_0067 2004-08-03 (04/216) 2004-08-10 (04/223) ODF's, TNF's ODRS_0068 2004-08-10 (04/223) 2004-08-20 (04/233) ODF's, TNF's ODRS_0069 2004-08-20 (04/233) 2004-08-31 (04/244) ODF's, TNF's ODRS_0070 2004-08-31 (04/244) 2004-09-01 (04/245) Aug 04 files ODRS_0071 2004-09-01 (04/245) 2004-09-13 (04/257) ODF's, TNF's ODRS_0072 2004-09-13 (04/257) 2004-09-27 (04/271) ODF's, TNF's ODRS_0073 2004-09-27 (04/271) 2004-09-30 (04/274) Sep 04 files ODRS_0074 2004-10-01 (04/275) 2004-10-18 (04/292) ODF's, TNF's ODRS_0075 2004-10-19 (04/293) 2004-11-01 (04/306) ODF's, TNF's ODRS_0076 2004-11-01 (04/306) 2004-11-02 (04/307) Oct 04 files ODRS_0077 2004-11-03 (04/308) 2004-11-15 (04/320) ODF's, TNF's ============================================================================== VOLUME SET INFORMATION ============================================================================== This disc is one of several which contain raw data from the late stages of the ODY Aerobraking phase or the ODY Mapping phase. Each archive volume has the structure illustrated in the diagram below. Not all directories or file types will be present on every disc; for example, only some volumes contain Archival Tracking Data Files (TDF directory). In cases where the directory itself would contain no files, the directory has been omitted from the CD-WO volume. The primary data types for these volumes are the Orbit Data File (ODF), the Archival Tracking Data File (ATDF or TDF), and the Radio Science Receiver (RSR) file. ODF files are stored in the ODF directory; TDFs are stored in the TDF directory, and RSRs are stored in the RSR directory. Each ODF, TDF, or RSR appears only once in the volume set though (in a few cases) two versions of the same file (with different file names) may appear. In early 2003, the DSN began phasing out TDFs and a new data type -- the Tracking and Navigation File, or TNF -- appeared. The primary data files are accompanied by a number of ancillary files. Over a dozen ancillary file types are organized into directories of their own. These include small forces files (SFF directory), light-time files (LIT directory), ephemerides (SPK directory), and others. Each of these files appears only once in the volume set; users should consult the tables of contents in the INDEX directory for file locations. A number of static ancillary files (files with contents that do not change, or change very little, over the course of the mission) are stored in the CALIB directory. These include leap second files, planetary constant files, spacecraft clock conversion files, static files needed to reconstruct spacecraft antenna position and pointing, and others. Documentation is in the DOCUMENT directory. CALIB and DOCUMENT files appear on every volume where they could be useful. The CATALOG directory contains summary information on the ODY mission, the spacecraft, radio science instrumentation, and the data set. These files are structured (to facilitate machine handling) but are also intended to be readable. The diagram below shows the organization of each volume, starting from the root of the compact disc. root | |- AAREADME.TXT |- ERRATA.TXT |- VOLDESC.CAT | |- CALIB | | | |- CALINFO.TXT Overview of directory | |- TSCnnnnn.SCK Clock conversion file | |- LSKydddA.TLS Leap second file | |- PCKydddA.PCK Planetary constants file | |- ... other files | `- *.LBL Detached PDS labels | |- CATALOG | | | |- CATINFO.TXT PDS catalog files for | |- MISSION.CAT mission, host, instrument, | |- INSTHOST.CAT references, personnel, data set | |- INST.CAT and target (files evolve as | |- REF.CAT mission progresses). | |- PERSON.CAT | |- DATASET.CAT | `- TARGET.CAT | |- DOCUMENT | | | |- DOCINFO.TXT Overview of directory | |- TK_FTP.TXT Ephemeris documentation | |- TK_DESCR.TXT | |- TK_INSTL.TXT | |- ... | |- TRK_2_21.TXT TDF SIS document | `- ... | |- INDEX | | | |- INDXINFO.TXT Overview of directory | |- INDEX.LBL Label to INDEX.TAB | |- INDEX.TAB List of data file contents, this volume | |- CUMINDEX.LBL Label to CUMINDEX.TAB | `- CUMINDEX.TAB List of data file contents, all volumes | |- AGK |- BRO |- EOP |- GDF |- GDN |- ION |- IPN |- LIT Data |- MIF Directories |- MPD |- MPF |- ODF |- OPT |- RSR |- SAK |- SFF |- SOE |- SPK |- TCK |- TDF |- TNF |- TRO `- WEA Related Data: Data from the Mars Global Surveyor mission were captured using the same (or very similar) systems. They have been archived separately. MGS data sets, archive volume ranges, and approximate coverage are: DATA_SET_ID Start Date End Date First Volume Last Volume -------------------- ---------- ---------- ------------ ----------- MGS-M-RSS-1-CRU-V1.0 1996-11-07 1997-09-01 MORS_0101 MORS_0156 MGS-M-RSS-1-MOI-V1.0 1997-09-02 1999-03-09 MORS_0201 MORS_0359 MGS-M-RSS-1-MAP-V1.0 1999-03-09 2001-01-31 MORS_0401 MORS_0584 MGS-M-RSS-1-EXT-V1.0 2001-02-01 2002-04-22 MORS_0601 TBD ============================================================================== ERRATA ============================================================================== A cumulative list of errors and changes is maintained in the file ERRATA.TXT at the root level of each volume. ERRATA.TXT in higher numbered volumes (or higher version numbers) will have errors for earlier volumes. ============================================================================== DISC FORMAT ============================================================================== The disc is organized according to the PDS standard for "one data set, many volumes." This file (AAREADME.TXT), a PDS volume object definition (VOLDESC.CAT), and the listing of errors and changes (ERRATA.TXT) are included at the root level. The following directories of descriptive material are also at the root level: CALIB contains files of constants, clock conversions, decommutation maps, and other material useful in working with the data. CATALOG contains descriptive files for cataloging the data on this disc. DOCUMENT contains a plain text Software Interface Specification (SIS) for data types (if available), directions on how to obtain NAIF SPICE software, and other documentation. INDEX contains index information on each of the data files included in this disc; it also includes a cumulative index to all files in this volume set. The remaining directories at the root level contain data files and detached PDS labels. ============================================================================== FILE FORMAT ============================================================================== All data files on the disc are accompanied by detached PDS labels, which describe their contents. PDS TEXT objects have attached labels. Detached labels have the same file name as the data file except that the label name has the suffix "LBL". Detached PDS labels for multi-file documents have distinctive file names ending with ".LBL". Detailed documentation on file structure is available for some file types in Software Interface Specifications in the DOCUMENT directory. ODF, TDF, and RSR files have full PDS labels which describe format and content completely. For other file types, where no electronic version of the SIS was available, the PDS label provides a reference to a hard copy document. See the DESCRIPTION keyword in each PDS label. Text files, including data files of ASCII text and all labels (*.LBL files) and tables (*.TAB files), are delimited with carriage-return (ASCII 13) line-feed (ASCII 10) pairs at the end of each line. Detached labels and text files (*.TXT file names) have fixed length records of 80 bytes to facilitate their use as either fixed-length record files or as stream files with carriage-return line-feed delimiters. Catalog files (*.CAT files) have fixed length records of 72 bytes ending with a carriage-return line-feed pair. The VOLDESC.CAT file in the root is an exception; it has 80 byte fixed-length records. ============================================================================== SOFTWARE ============================================================================== Software for parsing samples from ODF, RSR, and TDF data records has been developed at several institutions to support NASA flight projects. Because parsing must be done at the bit level and the code is usually written for a narrow platform-specific application, no software has been included as part of this archival product. ============================================================================== CITATIONS ============================================================================== Users wishing to cite products in this volume should use the following volume information: Editor: R.A. Simpson Data Set Name: 2001 Mars Odyssey Radio Science Raw Data Set - Map V1.0 Data Set ID: ODY-M-RSS-1-RAW-V1.0 Publisher: NASA Planetary Data System Year: 2004 ============================================================================== ACKNOWLEDGMENTS ============================================================================== These data were collected with support from both the Mars Global Surveyor Project and the Planetary Data System. G. Leonard Tyler of Stanford University was the MGS Radio Science Team Leader; Elaine Dobinson was the PDS Project Manager. ============================================================================== DISCLAIMER ============================================================================== Although considerable care has gone into making this volume set, errors are both possible and likely. Users of the data are advised to exercise the same caution as they would when dealing with any other unknown data set. Reports of errors or difficulties would be appreciated. Please contact the person listed below. ============================================================================== COGNIZANT PERSONNEL ============================================================================== The person most directly responsible for construction and release of this volume set is Dick Simpson, Experiment Engineer for the Mars Global Surveyor Radio Science Team and Radio Science Advisor to the Planetary Data System. Although many people contributed to the volume set, any faults in the product are his alone. Richard A. Simpson Center for Radar Astronomy Packard Building - Room 332 Stanford University Stanford, CA 94305-9515 Tel: 650-723-3525 FAX: 650-723-9251 rsimpson@magellan.stanford.edu ============================================================================== ACRONYMS AND ABBREVIATIONS ============================================================================== AGK Antenna Gain Kernel (file and/or directory) ATDF Archival Tracking Data File (same as TDF) CALIB Calibration (file and/or directory) CD Compact Disc CRU Cruise (mission phase) DKF DSN Keyword File (file and/or directory) DSN Deep Space Network ECH Engineering - Channelized data (file and/or directory) ECS Engineering - Channelized data Summary (file and/or directory) ECT Engineering Channel Table EOP Earth Orientation Parameters (file and/or directory) EPK Engineering - Packet data (file and/or directory) FBR Filtered Body Rates (file and/or directory) GDF Goddard GEODYN Final Orbit (file and/or directory) GDN Goddard GEODYN Quick-Look Orbit (file and/or directory) HEA Health report (file and/or directory) HGA High Gain Antenna (device and/or file and/or directory) ION Ionosphere Calibration file (file and/or directory) IPN JPL Inner Planet Navigation Group Orbit (file and/or directory) LGA Low Gain Antenna LIT Light Time (file and/or directory) MAP Mapping (mission phase) MCH DSN Monitor - Channelized data (file and/or directory) MCT Monitor Channel Table MGS Mars Global Surveyor MIF Maneuver Implementation/Reconstruction File (file and/or directory) MOI Mars Orbit Insertion (mission phase) MPD Maneuver Performance Data (file and/or directory) MPF Maneuver Profile File MPK DSN Monitor - Packet data (file and/or directory) NASA National Aeronautics and Space Administration occn occultation ODF Orbit Data File (file and/or directory) ODR Original Data Record (file and/or directory) ODY 2001 Mars Odyssey ONF Orbit Number File (file and/or directory) OPT Orbit Propagation and Timing Geometry (file and/or directory) PDS Planetary Data System RSR Radio Science Receiver RSS Radio Science Subsystem SAK Solar Array Kernel (file and/or directory) SFF Small Forces (file and/or directory) SOE Sequence of Operations (file and/or directory) SPK Spacecraft and Planet Kernel (file and/or directory) TCK Text C-Kernel (file and/or directory) TDF Tracking Data File (file and/or directory) TIM Time and Polar Motion (file and/or directory) TMO Transition to Mapping Orbit TNF Tracking and Navigation File TRO Troposphere Calibration File (file and/or directory) WEA DSN Weather (file and/or directory) WO Write Once