Galileo Jupiter Radio Science Subsystem Derived Bundle readme.txt ============================================================================== Brief Bundle Description ============================================================================== Galileo Jupiter Radio Science Subsystem Derived Bundle contains a small number of electron density profiles derived from radio occultation data collected while Galileo was in Jupiter orbit. Each profile is an ASCII table giving electron density as a function of radius (and altitude). This bundle contains Jupiter profiles from 1995-1996 and Io profiles from 1997. All data files are stored in the 'data' branch of the directory tree. Most data are stored in ASCII tables although some binary data are also included. All files give time values in Spacecraft Event Time (SCET). Some files may give an additional time column that contains the Earth Received Time (ERT) in addition to the SCET. 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. Bundle Organization: Galileo Jupiter RSS Derived Data Collection (urn:nasa:pds:galileo-rss-jup-der:data) PDS4 documentation is all XML. There is an XML label for every product in the archive. Galileo Jupiter RSS Derived Data Collection ============================================================================ This collection contains a small number of electron density profiles derived from radio occultation data collected while Galileo was in Jupiter orbit. Each profile is an ASCII table giving electron density as a function of radius (and altitude). These data were originally archived in the following PDS3 data set: PDS3 GO-J-RSS-5-ROCC-V1.0 (https://doi.org/10.17189/1519685). ============================================================================== 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. 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 raw 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 Io data stored on this Bundle were acquired during Phase 1 and downlinked after the IFL by use of the new capabilities of the Phase 2 flight software. As such, they are a hybrid form of data that were acquired by using flight software that may differ from other files of the same raw data format. This is primarily of concern when instrument reprogramming has resulted in a change in the contents of the raw data (i.e. MAG). 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 Orbit 4. 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 --------------------------------------------------------------------- 0 95-12-03 95-12-07 21:54 4.00 16:21 96-03-29 267.7 03:39 1 96-06-23 96-06-28 00:31 11.03 15:36 96-08-09 125.3 03:24 2 96-09-01 96-09-07 13:38 10.65 15:22 96-10-07 113.0 03:12 3 96-11-02 96-11-06 13:31 9.21 15:34 96-11-27 89.1 03:28 4 96-12-15 96-12-19 03:22 9.16 15:21 97-01-04 72.1 03:00 5* 97-01-15 97-01-20 00:26 9.05 14:54 97-02-04 72.1 02:48 6 97-02-16 97-02-20 20:55 9.12 14:28 97-03-14 89.2 02:20 7 97-03-30 97-04-04 11:03 9.12 14:14 97-04-21 75.9 01:56 8 97-05-04 97-05-08 11:42 9.27 13:29 97-06-02 100.2 01:21 9 97-06-22 97-06-27 11:52 10.77 12:35 97-08-08 143.0 00:21 10 97-09-14 97-09-18 23:10 9.17 12:44 97-10-13 98.9 00:36 11 97-11-02 97-11-06 23:02 9.03 12:36 97-11-26 84.1 00:29 12 97-12-15 97-12-16 06:35 8.80 12:29 97-12-20 46.6 00:37 13* 98-02-09 98-02-10 23:09 8.85 12:33 98-03-06 95.2 00:25 14 98-03-28 98-03-29 07:59 8.83 12:17 98-04-30 199.7 00:16 15 98-05-30 98-06-01 02:34 8.85 12:12 98-06-26 100.4 00:03 16 98-07-20 98-07-20 17:18 9.93 11:54 98-08-23 124.4 23:51 17 98-09-25 98-09-26 08:26 8.91 11:44 98-10-24 110.4 23:34 18 98-11-21 98-11-22 03:57 9.23 11:24 98-12-27 129.0 23:17 19 99-01-31 99-02-01 02:38 9.24 10:56 99-03-18 154.3 22:40 20 99-05-02 99-05-03 17:00 9.37 10:24 99-06-02 114.5 21:46 21 99-06-29 99-07-02 05:04 7.27 10:04 99-07-22 89.0 21:57 22 99-08-11 99-08-12 10:58 7.32 09:50 99-08-29 77.1 21:23 23 99-09-13 99-09-14 19:57 6.55 09:17 99-09-27 65.7 20:46 24 99-10-10 99-10-11 03:31 5.68 08:41 99-11-01 97.7 20:47 25 99-11-25 99-11-26 23:30 5.94 08:39 99-12-15 87.2 20:28 26 00-01-01 00-01-04 03:33 5.78 08:14 00-01-28 102.7 20:05 27 00-02-20 00-02-22 12:30 5.85 07:56 00-04-06 154.4 19:55 28 00-05-17 00-05-21 04:52 6.68 07:18 00-09-08 289.9 18:37 29 00-12-27 00-12-29 03:26 7.49 06:03 01-03-11 216.3 17:37 30 01-05-07 01-05-23 17:33 7.28 05:11 01-06-29 136.8 16:27 31 01-08-04 01-08-06 04:52 5.93 04:14 01-09-10 132.2 16:05 32 01-10-14 01-10-15 23:56 5.78 03:53 01-12-01 160.7 15:39 33 02-01-16 02-01-17 16:23 5.54 03:13 02-06-13 348.1 14:21 34 02-11-04 02-11-05 07:23 1.99 01:40 03-04-14 336.7 12:49 35 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 ============================================================================ Contacts ============================================================================ For questions or problems regarding this archive, please contact the PDS/PPI PDS operator: Email pds_operator@igpp.ucla.edu