Data Set Information
DATA_SET_NAME GO EAR PLS SUMM EARTH-1 ET V1.0
DATA_SET_ID GO-E-PLS-4-SUMM-EARTH1-ET-V1.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION This file is a listing of particle energy spectra from the Galileo Plasma Instrument (PLS) during the first Earth Encounter. Detector reponses from ion detetors 2P, 4P, and 6P, and from electron detector 4E are available through the PDS as separate files. The energy resolution, angular fields of view, and nominal geometric factors for the detectors are specified in the Instrument Description file. Data Set Overview ================= For each detector the responses (Counts/Sample-Period) are given for a series of energy-per-unit charge steps (E/Q, Volts). These responses are summed over spin sectors. The instrument is programmable, and operating modes are tailored for different mission phases to acquire effective measurements. The E/Q steps and Sample Periods for different mission phases (through Ida) are tabled below. TABLE A -------------------------------------------------------------- Mission Phase Sample Period, E/Q Steps, Seconds Table -------------------------------------------------------------- Venus 0.400 Table B Earth-1 1.333 Table B Gaspra 1.200 Table B Earth-2 1.200 Table B Ida 1.200 Table B --------------------------------------------------------------- TABLE B -------------------------------- Step E/Q, Volts P2,P4,P6 E4 -------------------------------- 17 21 19 19 29 27 21 41 38 23 57 53 25 80 74 27 112 104 29 157 146 31 220 204 33 303 281 35 454 422 37 686 638 39 961 893 41 1363 1266 43 1958 1819 45 2732 2538 47 3788 3519 49 5490 5100 51 7777 7225 53 10614 9860 55 15189 14110 57 21356 19839 59 29829 27710 61 40443 37570 63 52521 48790
DATA_SET_RELEASE_DATE 1995-04-19T00:00:00.000Z
START_TIME 1990-11-08T11:22:19.807Z
STOP_TIME 1990-12-08T08:10:55.398Z
MISSION_NAME GALILEO
MISSION_START_DATE 1977-10-01T12:00:00.000Z
MISSION_STOP_DATE 2003-09-21T12:00:00.000Z
TARGET_NAME EARTH
TARGET_TYPE PLANET
INSTRUMENT_HOST_ID GO
INSTRUMENT_NAME PLASMA SCIENCE EXPERIMENT
INSTRUMENT_ID PLS
INSTRUMENT_TYPE PLASMA INSTRUMENT
NODE_NAME planetary plasma interactions
ARCHIVE_STATUS ARCHIVED
CONFIDENCE_LEVEL_NOTE The data sets contained in the Earth-1 collection include 90/312-326, 339-342. The PLS instrument was powered down due to thermal concerns.
CITATION_DESCRIPTION GO EAR PLS SUMM EARTH-1 ET V1.0, GO-E-PLS-4-SUMM-EARTH1-ET-V1.0, NASA Planetary Data System, 1995
ABSTRACT_TEXT This file is a listing of particle energy spectra from the Galileo Plasma Instrument (PLS) during the first Earth Encounter. Detector reponses from ion detetors 2P, 4P, and 6P, and from electron detector 4E are available through the PDS as separate files.
PRODUCER_FULL_NAME DR L.A. FRANK
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