Voyager 1 and 2 Saturn Encounter Data DVD-R (VG_1601)
Planetary Data System
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Links to sections of this document: |
Links to HTML pages describing the data: |
The Saturn Encounter phases have been defined as 1980-08-22 to 1980-12-14 for Voyager 1 and 1981-06-05 to 1981-09-25 for Voyager 2. The actual start and end times of the data sets included on this volume vary considerably. Most of the instruments on each spacecraft only recorded Saturn-related data for a portion of its Encounter Phase.
Every effort has been made to insure that the data are of the best quality available. However, the PDS and the Planetary Plasma Interactions (PPI) Node in particular, assume no liability for this volume or its contents. Users are encouraged to verify the 'correctness' of the data prior to submitting any publications or other work based on these data.
| CATALOG | PDS catalog templates describing the Voyager mission, spacecraft, instruments, data sets, key personnel and references. |
| VG1 | Voyager 1 science data from the following instruments: CRS (Cosmic Ray Subsystem), LECP (Low Energy Charged Particle), MAG (Fluxgate Magnetometer), PLS (Plasma Science Experiment), PRA (Planetary Radio Astronomy Receiver), and PWS (Plasma Wave Receiver). |
| VG2 | Voyager 2 science data from the following instruments: CRS (Cosmic Ray Subsystem), LECP (Low Energy Charged Particle), MAG (Fluxgate Magnetometer), PLS (Plasma Science Experiment), PRA (Planetary Radio Astronomy Receiver), and PWS (Plasma Wave Receiver). |
| DOCUMENT | Documents describing instruments, data sets, or software contained on this DVD-R. |
| INDEX | Index of all user files with .LBL files contained on this DVD-R. |
| EXTRAS/SPICE | Copies of the SPK, PCK, and LSK SPICE kernels. |
More information on directory structure is contained in the section entitled 'Volume Contents and Structure.' Novice users, however, may ignore all files and directories except for the 'Important Files and Directories' listed below.
An *INFO.TXT file (e.g. CATINFO.TXT, etc.), containing a description of the directory tree and sub-directory contents, is located in every directory immediately below the root. The INFO.TXT files provided on selected data sub-directories contain detailed descriptions of the directories on which they are located.
All files on this volume are described by detached or combined detached PDS labels. PDS labels have a file extension of '.LBL' and generally have the same name as the file which it describes. All PDS label files on this DVD-R are completely PDS Standards Version 3.4 compliant.
Data files are stored in ASCII (.TAB) and binary (.DAT) format. The file records are generally fixed length with space or comma delimited fields or columns. Refer to the label (.LBL) for information about the format and structure of a specific data file.
Document files are reproduced from articles on the Space Science Reviews, and are stored in both plain ASCII text (.ASC) and HTML (.HTM) versions. Figures, tables and equations from the original documents have been scanned and are provided in GIF89A format.
PDS labels are object-oriented. The object to which the label refers (e.g., SERIES, TABLE, etc.) is denoted by a statement of the form:
^object = location
in which the caret character (^, also called a pointer in this context) indicates that the object starts at the given location. For an object in the same file as the label, the location is an integer representing the starting record number or byte of the object (the first record/byte in the file is 1). If this value is omitted, then the data begin at record one (1). For an object located outside the label file, the location denotes the name of the file containing the object, along with the starting record or byte number.
Examples:
^TABLE = "ELE_FIT.TAB"
The first example points would tell the user that file ELE_FIT.TAB is described by a TABLE object and the data begin at record 1 of the file. The data file exists in the same directory as the detached label file. Below is a list of the possible formats that use the ^object keyword.
^object = n
^object = n<BYTES>
^object = ("filename.ext",n)
^object = ("[dirlist]filename.ext",n)
^object = ("filename.ext",n<BYTES>)
^object = ("[dirlist]filename.ext",n<BYTES>)
where n is the starting record or byte number of the object, counting from beginning of the file (record 1, byte 1); default is record number.
<BYTES> indicates that number given is in units of bytes.
filename is upper-case file name.
ext is upper-case file extension.
[dirlist] is a period-delimited path-list of parent directories, in upper case, that specifies the object file directory (used only when the object is not in the same directory as the label file).*
* All PDS labels on this volume are located in the same directory as the file they describe, so this construct is not used here.
If you find an error on this volume, please report the error to the PDS Operator at the PPI Node of the PDS.
Internet: pds_operator@igpp.ucla.edu
Telephone: (310) 206-6073
U.S. Mail:
PDS Operator
c/o Dr. Raymond Walker
UCLA - IGPP
Los Angeles, CA 90095-1567
Only through the support and feedback of the users of these data can an effective errata list be maintained.
VG_1601 (root directory)
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|- AAREADME.TXT (This file) describing volume contents,
| organization, and DVD-R use.
|
|- ERRATA.TXT File describing errors and anomalies found on this
| DVD-R.
|
|- VOLDESC.CAT High level description of DVD-R contents.
|
|-[CATALOG] Contains metadata associated with this DVD-R,
| including mission, instrument host (spacecraft),
| instrument, data set, personnel and reference
| descriptions and information (*.CAT files).
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|-[DOCUMENT] Contains a mission and 6 instrument sub-directories
| which contain documents relating to one or more
| data sets. An ASCII version (*.ASC), with tables
| and equations reproduced using ASCII characters,
| is provided for each document. HTML versions (*.HTM)
| are also provided for selected documents. Figures,
| tables and some equations have been scanned and
| provided in GIF89A format (*.GIF).
|
|-[INDEX] Contains a listing of file name, location, volume,
| and data set association for all user files with
| PDS labels contained on this DVD-R.
|
|-[VG1] Contains Voyager 1 instrument and ephemeris data
| sub-directories. Each data file is accompanied
| by a PDS label file (.LBL) which describes data file
| contents. Please refer to the INFO.TXT file located
| in each data sub-directory for a more detailed
| description of directory contents.
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|-[VG2] Contains Voyager 2 instrument and ephemeris data
| sub-directories. Each data file is accompanied
| by a PDS label file (.LBL) which describes data file
| contents. Please refer to the INFO.TXT file located
| in each data sub-directory for a more detailed
| description of directory contents.
|
|-[EXTRAS/SPICE] Contains copies of the SPICE SPK (VG1_SAT.TSP and
| VG2_SAT.TSP), PCK (PCONST.TCP), and LSK (LEAPSECS.TLS)
| kernels. All SPK, PCK, and LSK kernels are in
| ASCII format. Note that this DVD-R is not the
| official archive for these SPICE kernels. The
| PDS/NAIF node officially provides these data.
The person most directly responsible for the construction and release of this DVD-R is Mr. Steven Joy. He was the PPI Node Data Administrator at the time this volume was created and understands as much about the volume structure and data organization as anyone. The construction of the PDS labels and templates was done by Mr. Joe Mafi. Other PPI personnel who may be aware of issues related to this DVD-R include Ms. Eva Fried, Ms. Xinping Liu and Dr. Raymond Walker, the PDS/PPI Node manager. For questions or problems regarding this DVD-R volume, please contact the PDS/PPI PDS operator:
Internet: pds_operator@igpp.ucla.edu
Telephone: (310) 206-6073
U.S. Mail:
PDS Operator
c/o Dr. Raymond Walker
3845 Slichter Hall
UCLA - IGPP
Los Angeles, CA 90095-1567
For questions regarding PDS Standards or other CD-ROM's available from the PDS, please contact the PDS Operator at the PDS Central Node (at JPL):
Internet: pds_operator@jpl.nasa.gov
Telephone: (818) 354-4321
U.S. Mail:
Planetary Data System, PDS Operator
Jet Propulsion Laboratory
Mail Stop 202-101
4800 Oak Grove Dr.
Pasadena, CA 91109-8099
The PDS, and the Planetary Plasma Interactions (PPI) Node in particular, assume no legal liability for errors on this volume. All users are encouraged to verify the "correctness" of the data prior to submitting any publications or other work based on these data. Errors on this volume should be reported back to the PPI Node of the PDS through the ERRATA reporting procedures described above.