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GO JUPITER EPD REFORMATTED HIGH RES SECTOR V1.0 (PDS)

NSSDCA ID: PSFP-00687

Availability: Archived at NSSDC, accessible from elsewhere

Description

This description was generated automatically using input from the Planetary Data System.

This data set contains two versions of three different data file types. One version is a corrected form of the other ('C'). The corrected data are adjusted for minute gaps in between the detector cycles. Each version contains the following types: 16 sector (64 channel) at 1.25s time resolution 32 sector (16 channel) at 0.6s time resolution 64 sector (8 channel) at 0.3s time resolution This data ranges from the Io flyby (December 1995) to end of mission. All available motor positions are provided. Step 0, which looks behind the background shield, is included for an indication of the background penetration of the detector. The rates reported are in units of (counts/sec), pitch and phase angles are in (radians). The sectors are ordered in time. Pitch angle is the angle between the look direction of the detector and the observed magnetic field. Phase angle is the angle measured from the x-axis to the projection of the look direction onto the xy plane of a local magnetic coordinate system where the z-axis is the magnetic field direction, the x-axis lies in a plane defined by the direction of corotation and the z-axis, and y completes the set of the right hand coordinate system. Transform Counts/Sec-> Differential Flux: Given the count rate R, pass band of the particle dE, and the geometrical factor G of the detector it is possible to calculate (dE and G are available in the EPD instrument template) differential flux j=R/(G dE). For example, given a rate 3000 counts/sec for channel E2, we find in the EPD instrument template that dE= (0.055-0.042)=.013 MeV, G=.035 cm**2 Sr. This gives a differential flux of 6.59 10**06 (cm**2 MeVs Sr)**-1. For more detailed information about the Io encounter and the energetic particle data included in this browse set see Electron Beams and Ion Composition Measured at Io and its Torus by Williams et al., Science Vol. 274, 309-464, 18 Oct 1996. [WILLIAMSETAL1996]. This data set is highly discontinuous in time. Because of the severe limitations in the downlink capability of the Galileo spacecraft, LPW rate data were recorded only for targeted observations. Most of these data were acquired near the Galilean moons, although selected observations were made in various locations around the magnetosphere. Table 1 below provides a listing of the start and stop times of the recorded data segments, organized according to. where the data were acquired. ----------------------------------------------------------------Table 1. LPW Resolution Data Coverage** ----------------------------------------------------------------Io Flybys: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------I00 IO 95-12-07 15:21 184 5.4- 7.7 10.6-12.3 204-290 I24 IO 99-10-11 03:42 66 5.7- 6.0 10.1-10.9 59- 87 2 I25 IO N/A 1 I27 IO 00-02-22 13:04 81 5.9- 6.0 8.4- 9.4 64- 97 I31 IO 01-08-06 04:25 64 5.9 3.9- 4.7 145-171 I32 IO 01-10-16 01:06 73 5.9- 6.1 4.8- 5.7 253-283 I33 IO N/A 1 Europa Flybys: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID* Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------E04 EUR 96-12-19 06:33 51 9.4- 9.5 16.6-16.9 147-173 E06 EUR 97-02-20 16:37 312 9.5- 9.1 12.8-14.8 326-125 E11 EUR 97-11-06 20:09 162 9.0- 9.4 10.8-11.9 211-294 E12 EUR 97-12-16 11:42 46 9.4- 9.6 14.5-14.8 107-131 E14 EUR 98-03-29 13:05 55 9.4- 9.6 14.3-14.7 176-204 E15 EUR 98-05-31 20:42 61 9.4- 9.6 9.9-10.3 277-308 E16 EUR N/A 1 E18 EUR N/A 1 E19 EUR 99-02-01 01:49 50 9.2- 9.4 9.7-10.0 245-270 E26 EUR 00-01-03 17:29 61 9.2- 9.7 2.8- 3.1 346- 18 Ganymede Flybys: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------G01 GAN 96-06-27 06:07 45 14.9-15.2 11.2-11.3 163-188 4 G02 GAN 96-09-06 18:32 56 14.8-15.2 10.7-10.9 143-174 G07 GAN 97-04-05 06:44 56 14.8-15.2 19.7-19.8 5- 37 G08 GAN 97-05-07 15:36 46 14.8-15.1 8.1- 8.2 276-302 G28 GAN 00-05-20 09:40 60 14.7-15.3 0.7- 0.8 335- 9 G29 GAN 00-12-28 07:57 57 14.7-15.2 23.9- 0.0 205-237 Callisto Flybys: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------C03 CALL 96-11-04 13:15 45 26.1-26.4 7.8 231-258 C09 CALL 97-06-25 13:25 46 26.1-26.4 5.5 47- 74 C10 CALL 97-09-16 23:49 60 26.0-26.4 5.0- 5.1 318-354 C30 CALL 01-05-25 11:09 36 26.2-26.5 13.1-13.2 68- 89 Amalthea Flyby: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------A34 AMA 02-11-05 02:44 231 6.2- 2.3 6.4- 3.0 102-149 Inner Magnetosphere: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------J00 PJOV 12-07-95 23:22 124 4.0- 5.2 18.4-20.5 18- 62 I24 TOR N/A 1 I32 TOR 01-10-15 22:55 33 5.8- 5.9 3.0- 3.4 198-211 I25 TOR 99-11-25 21:07 174 5.9- 7.0 5.1- 7.0 336- 53 2 A34 PSX7 02-11-05 01:05 90 6.3- 7.7 17.7-18.2 24- 70 C23 PJOV 99-09-14 14:36 412 6.5- 7.7 6.1-10.3 52-239 C21 PJOV 99-07-01 23:53 113 7.6- 8.2 7.4- 8.3 247-301 C22 PJOV 99-08-12 08:18 288 7.3- 7.6 8.4-11.0 225- 0 E11 EQX (see E11 EUR) 3 I32 RAMP 01-10-15 15:31 115 7.8-8.9 22.9-23.7 354- 52 C10 EQX 97-09-18 22:34 46 9.2 12.5-12.8 102-125 C20 PJOV 99-05-03 15:59 122 9.4 10.0-10.8 45-106 A34 PSX6 02-11-04 21:48 45 10.3 17.0-17.1 285-300 Middle Magnetosphere: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------C09 TAR 97-06-28 13:50 61 18.1-18.5 18.1-18.2 324-359 C03 TAR 96-11-05 07:04 40 19.3-19.0 8.9- 9.0 140-163 G08 QRS 97-05-06 13:00 129 25.0-25.8 5.9- 6.0 63-140 G01 PSX 96-06-30 02:00 46 27.2-27.5 22.8 292-319 4 A34 PSX2 02-11-03 15:28 45 29.4-29.0 15.6 276-303 A34 PSX1 02-11-03 10:38 45 31.8-31.4 15.5 102-132 G02 PSX 96-09-11 02:38 40 39.2-39.4 23.8-23.9 121-145 G07 PSX 97-03-30 18:49 46 46.2-46.4 4.8 125-152 Magnetotail: ----------------------------------------------------------------Dur. Jup Range Local Time S3 WLON Obs. ID Start Time (min) (Rj) (hours) (deg). Note ----------------------------------------------------------------C09 DSK1 97-07-04 14:09 118 64 22.1 99-170 4 C09 DSK2 97-07-14 10:03 45 107 23.2 357- 25 4 E18 DSK 98-12-10 19:36 288 109 22.5 285- 98 C09 DSK3 97-07-23 13:11 46 129 23.7 18- 45 C09 DAWN 97-08-23 14:07 122 130 0.9- 1.0 17- 90 C09 APJ 97-08-07 11:06 101 143 0.3 30- 91 * The ID element is derived from the SEF identifier for the recorded observation. The recording identifiers translate to: IO, GAN, EUR, CALL - satellites PSX - plasma sheet crossing TAR - trans-auroral region QRS - quarter rotation survey DSK - dusk side of orbit (see local time) DAWN - dawn side of orbit (see local time) APJ - apojove TOR - Io torus EQX - magnetic equator crossing PJOV - perijove RAMP - outer torus These designations were defined by the sequence team. ** LPW coverage indicates time periods that were recorded in LPW format. Not all data files span entire recorded interval. Notes: 1 = Recording lost due to spacecraft safing/anomaly 2 = Stats given for primary observation interval only, data file. includes additional intervals of 'ridealong' data. 3 = E11 EUR and EQU are continuous and listed as a single observation. 4 = No data available for this interval. Table 2 provides a listing of the various satellite closest approach times and the location of the spacecraft, relative to the satellite at these times. -----------------------------------------------------------Table 2. 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 ** 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

These data are available on-line from the Planetary Data System (PDS) at:

https://pds-ppi.igpp.ucla.edu/data/GO-J-EPD-2-REDR-HIGHRES-SECTOR-V1.0/

Alternate Names

  • GO-J-EPD-2-REDR-HIGHRES-SECTOR-V1.0

Discipline

  • Planetary Science: Fields and Particles

Additional Information

Spacecraft

Experiments

Questions and comments about this data collection can be directed to: Dr. Edwin V. Bell, II

 

Personnel

NameRoleOriginal AffiliationE-mail
Dr. Donald J. WilliamsData ProviderApplied Physics Laboratorydonald.williams@jhuapl.edu
Dr. Thomas P. ArmstrongGeneral ContactFundamental Technologies, LLC
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