PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 80 OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2002-05-08 NOTE = "N/A" END_OBJECT = TEXT END Mars Global Surveyor Accelerometer Raw Data Archive (MGS-M-ACCEL-2-EDR-V1.1) AAREADME.TXT 8 May 2002 L.F. Huber New Mexico State University ============================================================================== INTRODUCTION ============================================================================== This compact disc contains archival accelerometer results from the Mars Global Surveyor (MGS) mission. This disc includes raw data from Aerobraking Phases 1 and 2. Volume MGSA_0002 includes reduced data. The archive was prepared under standards of the Planetary Data System (PDS). This updated version includes additional keywords to facilitate data searches. ============================================================================== VOLUME SET INFORMATION ============================================================================== The diagram below shows the organization of this volume, starting from the root of the compact disc. root | |- AAREADME.TXT The file you are reading. | |- ERRATA.TXT A listing of known errors/problems on | this volume. (Not present if empty.) | |- VOLDESC.CAT A description of the contents of this | CD_ROM volume in a format readable by | both humans and computers. | | |- [CALIB] A directory containing calibration | | information. | | | |- CALINFO.TXT Description of files in this directory. | | | |- AERODYN.TAB File of aerodynamic properties of MGS. | | | |- AERODYN.FMT Column descriptions of AERODYN.TAB. | | | |- SC_DATA.TAB File of physical properties of MGS. | |- [CATALOG] A directory containing information | | about the data set | | | |- CATINFO.TXT Description of files in this directory. | | | |- INSTHOST.CAT Description of the MGS spacecraft. | | | |- INST.CAT Description of the MGS Accelerometer. | | | |- DATASET.CAT Descriptions of the raw data set. | | | |- MISSION.CAT Description of the MGS mission. | | | |- PERSON.CAT A listing of the people involved in the | | production of this data set and | | this CD-ROM. | | | |- REF.CAT A list of pertinent references. | |- [DOCUMENT] A directory containing related documents. | | | |- DOCINFO.TXT Description of files in this directory. | | | |- SIS_ACC.TXT SIS document for the data set. | | | |- PERIALTS.PS Plot of periapsis altitude vs. orbit #. | | | |- JSR.ASC ASCII version of JSR paper. | | | |- JSR*.TIF TIFF format figures from JSR paper. | |- [INDEX] A directory containing an index of data | | files on this volume | | | |- INDXINFO.TXT Description of files in this directory. | | | |- INDEX.TAB An index of data files on this volume. | | | |- INDEX.LBL The PDS label describing INDEX.TAB. | |- [LABEL] A directory containing files with | | repeated label information. | | | |- LABINFO.TXT Description of files in this directory. | | | |- *.FMT Format files describing table structures. | |- [DATA] A directory containing the raw data files | | and PDS labels describing the contents | | of those files. | | | - [P##XX] Divided into subdirectories by orbit | | number. | - [P####] | | | - COUNTS.TAB Accelerometer counts. | | | - ORBELEM.TAB Orbital elements at periapsis. | | | - RATEQUAT.TAB Angular rates and quaternions. | | | - THRUSTER.TAB Thruster on times. | More information on the organization of the CD can be found in the Software Interface Specification (SIS) for the data set in the DOCUMENT directory. ============================================================================== DISC FORMAT ============================================================================== This disc has been formatted so that a variety of computer systems (e.g. IBM PC, Macintosh, Sun, VAX) may access the data. Specifically, the disc is formatted according to the ISO 9660 level 1 Interchange Standard. For further information, refer to the ISO 9660 Standard Document: RF# ISO 9660-1988, 15 April 1988. The disc is organized according to the PDS standard for "one data set, one volume." 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: CATALOG contains descriptive files for cataloging the data on this disc. DOCUMENT contains a plain text Software Interface Specification (SISs) for the data set and other documentation. INDEX contains index information (table of contents) on each of the data files included in this disc. ============================================================================== FILE FORMAT ============================================================================== All data files on the disc are accompanied by attached PDS labels, which describe their contents. PDS TEXT objects have attached labels. 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. ============================================================================== SOFTWARE ============================================================================== No software is included with this data set. ============================================================================== PEER REVIEW ============================================================================== This volume has completed a peer review by the PDS. The peer review panel consisted of Robert Tolson and Gerry Keating from the Accelerometer team, Lyle Huber, Jim Murphy and Joel Wilf representing PDS, Richard Springer from the Mars Surveyor Project, and Julio Magalhaes, Steve Bougher and Jeff Hollingsworth as external reviewers. ============================================================================== CITATION INFORMATION ============================================================================== Users wishing to cite this volume in publications should adopt the following as the method of citation: G.M. Keating, R.H. Tolson, S.N. Noll, R.F. Beebe and L.F. Huber, Volume MGSA_0001, NASA Planetary Data System, 2002. ============================================================================== DISCLAIMER ============================================================================== Although considerable care has gone into making this volume set, errors are possible. Reports of errors or difficulties would be appreciated. Please contact one of the persons listed below. ============================================================================== COGNIZANT PERSONNEL ============================================================================== Lyle F. Huber New Mexico State University Department of Astronomy P.O. Box 30001/MSC 4500 Las Cruces, NM 88003 Tel: 505-646-1862 FAX: 505-646-1602 lhuber@nmsu.edu