PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT_DOCUMENT PUBLICATION_DATE = 2004-09-01 NOTE = "AAREADME.TXT describes this volume." END_OBJECT = TEXT_DOCUMENT END Volume GOHIC_5001 Galileo Orbiter Heavy Ion Counter Raw Jupiter Data Planetary Plasma Interactions Discipline Node of the Planetary Data System ============================================================================== Brief Disk Description ============================================================================== This disk contains Heavy Ion Counter (HIC) data packets from the Jupiter orbits. This data is not meant for general use as it lacks the processing and calibration necessary for it to be meaningful. All data files are stored in the 'DATA' branch of the directory tree. Each data file contains the packetized data for a specific orbit and is in a binary format. Users of these data are encouraged to acknowledge both the PDS and the principal investigators of the instruments whose data is used in analysis in all publications. ============================================================================== Volume Set Information ============================================================================== This CD contains all HIC raw Jupiter data packets. ============================================================================== Mission Facts ============================================================================== The Galileo spacecraft and some science instruments were reprogrammed after arrival at Jupiter so that data acquisition and downlink could be achieved at the low bit rates associated with the mission after the high gain antenna (HGA) anomaly (see GO_SPACECRAFT_DESC_INST.CAT file in the CATALOG directory). New software was telemetered to the spacecraft in early May 1996 in a period known as the 'Inflight Load' or IFL. The mission prior to the IFL is known as the Phase 1 mission. After the IFL the mission is referred to as the Phase 2 mission. In Phase 1 raw data were provided to the instrument teams in Experiment Data Record (EDR) format. In Phase 2, the whole telemetry stream and ground data system were changed. The raw data were 'packetized' and delivered electronically as packet files or instrument packet files (IPF). The difference between a packet file and an IPF is a single 44 byte header called an SFDU. The Galileo orbits were named by concatenating the first letter of the name of the primary target in each orbit with the orbit number. Thus, the fourth Jupiter orbit, in which Europa is the primary target, is called E4. The project defined orbits according to spacecraft command load boundaries rather than the normal convention of apoapsis to apoapsis. The navigation team did not always adhere to this convention, causing some confusion. The PDS has organized the data and data delivery schedules around the project defined orbit boundaries. The following tables contain information about the orbital tour and satellite encounters: --------------------------------------------------------------------- Galileo Orbit Information --------------------------------------------------------------------- Orbit Orbit <--- Periapsis Info ----> <-- Apoapsis Info --> Num Start Periapsis Range Local Apoapsis Range Local Date Date/Time Time Date Time --------------------------------------------------------------------- J0 95-12-03 95-12-07 21:54 4.00 16:21 96-03-29 267.7 03:39 G1 96-06-23 96-06-28 00:31 11.03 15:36 96-08-09 125.3 03:24 G2 96-09-01 96-09-07 13:38 10.65 15:22 96-10-07 113.0 03:12 C3 96-11-02 96-11-06 13:31 9.21 15:34 96-11-27 89.1 03:28 E4 96-12-15 96-12-19 03:22 9.16 15:21 97-01-04 72.1 03:00 J5* 97-01-15 97-01-20 00:26 9.05 14:54 97-02-04 72.1 02:48 E6 97-02-16 97-02-20 20:55 9.12 14:28 97-03-14 89.2 02:20 G7 97-03-30 97-04-04 11:03 9.12 14:14 97-04-21 75.9 01:56 G8 97-05-04 97-05-08 11:42 9.27 13:29 97-06-02 100.2 01:21 C9 97-06-22 97-06-27 11:52 10.77 12:35 97-08-08 143.0 00:21 C10 97-09-14 97-09-18 23:10 9.17 12:44 97-10-13 98.9 00:36 E11 97-11-02 97-11-06 23:02 9.03 12:36 97-11-26 84.1 00:29 E12 97-12-15 97-12-16 06:35 8.80 12:29 97-12-20 46.6 00:37 J13* 98-02-09 98-02-10 23:09 8.85 12:33 98-03-06 95.2 00:25 E14 98-03-28 98-03-29 07:59 8.83 12:17 98-04-30 199.7 00:16 E15 98-05-30 98-06-01 02:34 8.85 12:12 98-06-26 100.4 00:03 E16 98-07-20 98-07-20 17:18 9.93 11:54 98-08-23 124.4 23:51 E17 98-09-25 98-09-26 08:26 8.91 11:44 98-10-24 110.4 23:34 E18 98-11-21 98-11-22 03:57 9.23 11:24 98-12-27 129.0 23:17 E19 99-01-31 99-02-01 02:38 9.24 10:56 99-03-18 154.3 22:40 C20 99-05-02 99-05-03 17:00 9.37 10:24 99-06-02 114.5 21:46 C21 99-06-29 99-07-02 05:04 7.27 10:04 99-07-22 89.0 21:57 C22 99-08-11 99-08-12 10:58 7.32 09:50 99-08-29 77.1 21:23 C23 99-09-13 99-09-14 19:57 6.55 09:17 99-09-27 65.7 20:46 I24 99-10-10 99-10-11 03:31 5.68 08:41 99-11-01 97.7 20:47 I25 99-11-25 99-11-26 23:30 5.94 08:39 99-12-15 87.2 20:28 E26 00-01-01 00-01-04 03:33 5.78 08:14 00-01-28 102.7 20:05 I27 00-02-20 00-02-22 12:30 5.85 07:56 00-04-06 154.4 19:55 G28 00-05-17 00-05-21 04:52 6.68 07:18 00-09-08 289.9 18:37 G29 00-12-27 00-12-29 03:26 7.49 06:03 01-03-11 216.3 17:37 C30 01-05-07 01-05-23 17:33 7.28 05:11 01-06-29 136.8 16:27 I31 01-08-04 01-08-06 04:52 5.93 04:14 01-09-10 132.2 16:05 I32 01-10-14 01-10-15 23:56 5.78 03:53 01-12-01 160.7 15:39 I33 02-01-16 02-01-17 16:23 5.54 03:13 02-06-13 348.1 14:21 A34 02-11-04 02-11-05 07:23 1.99 01:40 03-04-14 336.7 12:49 J35 03-09-21 03-09-21 18: 1.00 * Solar Conjunction - no data from this orbit ** Rj = 71492 km" ------------------------------------------------------------ Satellite Flyby Characteristics* ------------------------------------------------------------ Satellite Planetocentric Coords Range Lat E Lon Orb Moon C/A Time (Rm**) (deg) (deg) Note ------------------------------------------------------------ 0 IO 95-12-07 17:45:58 1.50 -9.6 258.9 W 24 IO 99-10-11 04:33:03 1.34 4.5 135.9 U 27 IO 00-02-22 13:46:41 1.11 18.5 157.4 U 31 IO 01-08-06 04:59:21 1.11 77.5 187.7 P 32 IO 01-10-16 01:23:21 1.10 -78.5 135.3 P 33 IO 02-01-17 14:08:28 1.06 -43.5 41.8 F 4 EUR 96-12-19 06:52:58 1.45 -1.7 322.4 F 6 EUR 97-02-20 17:06:10 1.38 -17.0 34.7 F 11 EUR 97-11-06 20:31:44 2.31 25.7 218.7 F 12 EUR 97-12-16 12:03:20 1.13 -8.7 134.4 U 14 EUR 98-03-29 13:21:05 2.06 12.2 131.2 U 15 EUR 98-05-31 21:12:57 2.62 15.0 225.4 W 19 EUR 99-02-01 02:19:50 1.93 30.5 28.1 U 26 EUR 00-01-03 17:59:43 1.22 -47.1 83.4 U 1 GAN 96-06-27 06:29:07 1.32 30.4 246.7 W 2 GAN 96-09-06 18:59:34 1.10 79.3 236.4 P 7 GAN 97-04-05 07:09:58 2.18 55.8 270.4 W 8 GAN 97-05-07 15:56:10 1.61 28.3 84.8 U 28 GAN 00-05-20 10:10:10 1.31 -19.0 92.4 U 29 GAN 00-12-28 08:25:27 1.89 62.2 269.0 P 3 CALL 96-11-04 13:34:28 1.47 13.2 282.3 W 9 CALL 97-06-25 13:47:50 1.17 2.0 101.0 U 10 CALL 97-09-17 00:18:55 1.22 4.6 281.3 W 30 CALL 01-05-25 11:23:58 1.06 13.6 254.6 W 34 AMA 02-11-05 06:18:40 2.89 -47.7 74.8 U * Satellite encounters with recorded data only J2000 reference, body fixed spherical coordinates. ** Moon Rm (km) ======================= Amalthea 86.2 Io 1818 Europa 1560 Ganymede 2634 Callisto 2409 Notes: Negative latitudes are southern hemisphere, U = upstream F = flank W = wake P = polar ============================================================================== Volume Format Information ============================================================================== The disk is organized into a hierarchical directory structure. The disk contains the ISO 9660 (level 2) file system standards in order to accommodate users on a wide variety of platforms. ============================================================================== File Formats ============================================================================== The data files on this volume are a mix of ASCII text and binary files. All data files are described by detached PDS labels. A detached label file has the same name as the data file that it describes, but with the extension LBL. For example, the file ATTITUDE.TAB is accompanied by the detached label file ATTITUDE.LBL in the same directory. All data files on this volume are described by detached PDS labels (.LBL). Documentation formatted for inclusion in the PDS catalog can be found in the CATALOG directory. Additional documentation is generally located in the DOCUMENT directory. In particular, the Space Science Reviews (SSR) instrument paper can be found in the PLS subdirectory of the DOCUMENT directory. The documents are reprinted by permission of Kluwer Academic Publishers, Dordrecht, Boston, London. All document, detached PDS labels, and HTML files are stream format files, with a carriage return (ASCII 13) and a line feed character (ASCII 10) at the end of the record. This allows the files to be read by MacOS, DOS, Windows, Unix, and VMS operating systems. Unix system and Macintosh users will see the unnecessary carriage return character (^M) at the end of each line. Mac users will see an unnecessary line feed (^J) character at the start of each line. PDS labels are object-oriented. The object to which the label refers (e.g., TIME_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). 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. For example: ^TIME_SERIES = ("20903684.DAT", 3) indicates that the TIME_SERIES object begins at record 3 of the file 20903684.DAT, 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 ^object = ("filename.ext",n) ^object = ("[dirlist]filename.ext",n) ^object = ("filename.ext",n) ^object = ("[dirlist]filename.ext",n) 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. indicates that number given is in units of bytes. filename upper-case file name. ext upper-case file extension. dirlist* 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. Data set descriptions, instrument descriptions, and other useful documents are in .CAT files in the /CATALOG directory. In more recent versions of the Microsoft Windows operating system the .CAT by default is reserved as 'Security Catalog.' The .CAT files contained in this volume are ASCII text files, and can be read by any form of text editor. To make Windows open files with this name extension as text files, do the following. In Windows Explorer, open the 'Tools' menu and select 'Folder Options'. Select the 'File Types' tab and select 'CAT' from the list. Press 'Change...' and then choose your prefered text editor or viewer. We do not know of any harmful effects this might have on the operating system or other programs, but do not guarantee it will be entirely safe to make this change. If problems occur, the change can be undone in the same 'File Types' window by changing the default application back to 'crypto shell extension'. Copies of these documents can be found in the /EXTRAS/CATALOG_FILES directory with '.TXT' extensions, for easier access. ============================================================================== Errata ============================================================================== Every effort has been made to assure that the data and documentation are of the best possible quality. However, mistakes are inevitable. The PPI Node of the PDS will maintain an online list of ERRATA where errors and updates are documented. Should any user of this product find an error on this volume, please report the error to the PPI Node so that the finding can be made public. All users are encouraged to verify the correctness of the data prior to submitting any publications or other work based on these data. There is a file called ERRATA.TXT found at the root level of this volume which contains a list of known deficiencies or caveats associated with data on this volume at the time this DVD was published. An up-to-date version of the errata for this volume can be found at the PDS/PPI website: (http://www.igpp.ucla.edu/cgi-bin/ditdos?errata=GOHIC_5001). If you find an error on this disk, 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 ============================================================================ Software ============================================================================ No software has been provided for use with this data. ============================================================================== Volume Contents and Structure ============================================================================== This section describes the volume structure and naming conventions. Below is a tree diagram of the volume, followed by a description of the directory function and key files in each directory. GOHIC_5001 (root directory) | |- AAREADME.TXT Describes volume contents, organization and CD-ROM use | (this file) | |- ERRATA.TXT Describes known deficiencies or caveats in the data or | on this volume. | |- VOLDESC.CAT High level description of volume contents. | | |- [DATA] HIC instrument packet files | |- [DOCUMENT] Contains instrument papers and other documents that will | | be useful when analyzing data. The SSR instrument | | description paper is copyrighted material reproduced | | here with permission of Kluwer Academic Publishers. | | | |- [HIC] | | | | | |- [SSR] Contains HIC instrument paper published in Space | | | Science Reviews in ASCII, Adobe PDF, and HTML | | | formats. | | | | | |- [TECH_DOC] Contains a technical document published at | | CalTech which describes the HIC data formats and | | processing. Available in ASCII and HTML | | formats. | | | |- [PROJECT] Galileo project documentation describing raw telemetry | | data files, formats, etc. | | | |- [GLL3_180] contains a project document describing the | | Galileo spacecraft and the configuration of | | instruments on-board | | | |- [GLL3_280] Text and Adobe PDF format versions of | | the Galileo Phase 1 and 2 documents describing | | EDR data formats | | | |- [GLL3_310] Text (useless) and Adobe PDF format | | versions of Galileo ground system processing | | and packet file creation and formats. | | | |- [GLL3_640] Text and HTML (with GIF images of figures) | | format versions of the pages from the document | | that describes the headers in the Phase 1 EDR | | raw data files. | | | |- [SFDU_DOC] Text and HTML format versions of a | particularly useful document put together by | Betsy Wilson describing the various SFDU | headers and packet types possible in the | Phase 2 raw packetized data files. | | |- [INDEX] Contains a table of contents for all files located on this CD-ROM and the volume set to date. ============================================================================ Contacts ============================================================================ The person most directly responsible for the construction and release of this volume is Mr. Steven Joy. He was the PPI Node Data Administrator at the time this disk was created and understands as much about the disk structure and data organization as anyone. Other PPI personnel who may be aware of about issues related to this volume include Mr. Bill Harris, and Dr. Raymond Walker, the PDS/PPI Node manager. For questions or problems regarding this archive, 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 archives available from the PDS, please contact 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 disk. 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 disk should be reported back to the PPI Node of the PDS through the ERRATA reporting procedures described above.