Data Set Information
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| DATA_SET_NAME |
ULY JUP COSPIN HIGH FLUX TELESCOPE HIGH RES. ION FLUX
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| DATA_SET_ID |
ULY-J-COSPIN-HFT-3-RDR-FLUX-HIRES-V1.0
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| NSSDC_DATA_SET_ID |
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| DATA_SET_TERSE_DESCRIPTION |
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| DATA_SET_DESCRIPTION |
Data Set Overview ================= This data set contains ion flux data recorded by the COSPIN High Flux Telescope (HFT) during the Ulysses Jupiter encounter 1992-Jan-25 to 1992-Feb-18. Record format is essentially as follows: END TIME RATENAME LENGTH OF DEAD TIME COUNTS OF INTERVAL INTERVAL FACTOR Fields are space separated. Ratenames are ASCII strings indicating channel, mode etc. Records with bad data have been removed. 'C' is appended to the ratename when instrument is in calibrate mode. See [SIMPSONETAL1992A] for channel energy ranges. End times are in the format yyyy-mm-ddThh:mm:ss.sssZ (UTC). Interval times are in milliseconds. The dead time factor is either 1 (non-sectored data) or 32 (sectored data). The flux of whatever the channel responds to is given by: FLUX = 1000*DTF*COUNTS/LOI/0.0322 (counts/cm**2/s/sr) While C and spreadsheets can easily read these files, it is difficult to read these files in some programming languages (e.g., FORTRAN or IDL) because of the variable length strings in the first field. These files are easily manipulated using the UNIX awk and grep tools. [please note that time-stamp and record format have been changed by the PDS/PPI Node for the sake of consistency with other data sets found on this volume](the following table is adapted from [SIMPSONETAL1992A])TABLE 9. High flux telescope data channels.--------------------------------------------------------------------Name Discri- Primary Energy Species Geo- Avg. Sectors minator Parti- Range* for metric Time Res- Discri- cle (MeV(/n)) Range Factor olution minator Type Energy (cm^2 Level sr)-------------------------------------------------------------------- J0 Z>=1 0.28-7.0 Protons J1 Z>=1 0.50-2.27 Protons J2 Z>=1 0.76-1.37 Protons 16/readoutF1** J4 Z>=2 0.36-3.9 Helium 0.033 256 for same -- J6 Z>=2 0.51-2.26 Helium disc. level J8 Z>=2 0.64-1.66 Helium J10 Z>=2 0.78-1.35 HeliumF2 Lo Z>=1 0.29-6.7 Protons 0.033 16 -- Hi Z>=1 0.55-1.35 ProtonsF2s [same as for F2] 32 8 sampled from 32 128 32F3 Z>=2 0.68-1.56 Helium 0.033 --F4 Z>=3 0.8-4.9 Carbon 0.033 --F5 Z>=12 0.8-34** Iron 0.033 ----------------------------------------------------------------------* Energy ranges from range-energy relations** F1 steps through 16 discriminator levels in sequence in standard flight mode
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| DATA_SET_RELEASE_DATE |
1998-05-01T00:00:00.000Z
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| START_TIME |
1992-01-25T12:00:13.216Z
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| STOP_TIME |
1992-02-18T12:02:41.450Z
|
| MISSION_NAME |
ULYSSES
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| MISSION_START_DATE |
1990-10-06T12:00:00.000Z
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| MISSION_STOP_DATE |
N/A (ongoing)
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| TARGET_NAME |
JUPITER
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| TARGET_TYPE |
PLANET
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| INSTRUMENT_HOST_ID |
ULY
|
| INSTRUMENT_NAME |
COSPIN-HIGH FLUX TELESCOPE
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| INSTRUMENT_ID |
COSPIN-HFT
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| INSTRUMENT_TYPE |
HIGH ENERGY PARTICLE DETECTOR
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| NODE_NAME |
planetary plasma interactions
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| ARCHIVE_STATUS |
ARCHIVED
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| CONFIDENCE_LEVEL_NOTE |
Confidence Level Overview ========================= The user of this data should consult [ANGLINETAL1997] for details regarding the operation of the HFT instrument in the Jupiter environment. In particular, the calculation of ion fluxes is model dependent since each HFT rate channel responds to a range of ion species. The rate channels also contain a small background rate arising from cosmic rays, radioactive decay and other phenomena. This background has not been subtracted from the observed data. The deadtime parameter does not correct for electronic deadtime at high counting rates. Files containing corrected deadtimes have been included in this data set for days 38-39.
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| CITATION_DESCRIPTION |
Anglin, D.J., ULY-J-COSPIN-HFT-3-RDR-FLUX-HIRES-V1.0, ULY JUP COSPIN HIGH FLUX TELESCOPE HIGH RES. ION FLUX, NASA Planetary Data System, 1998.
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| ABSTRACT_TEXT |
This data set contains ion flux data recorded by the COSPIN High Flux Telescope (HFT) during the Ulysses Jupiter encounter 1992-Jan-25 to 1992-Feb-18
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| PRODUCER_FULL_NAME |
J. DAVID ANGLIN
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| SEARCH/ACCESS DATA |
Planetary Plasma Interactions Website
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