Data Set Information
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| DATA_SET_NAME |
VOYAGER 2 SAT PLASMA WAVE SPECTROMETER RESAMP SPEC 48.0SEC
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| DATA_SET_ID |
VG2-S-PWS-4-SA-48.0SEC
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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 consists of 48-second calibrated, averaged wave electric field intensities from the Voyager 2 Plasma Wave Receiver spectrum analyzer obtained in the vicinity of the Saturnian magnetosphere. For each 48-second interval, a geometric average field strength is determined for each of the 16 spectrum analyzer channels whose center frequencies range from 10 Hertz to 56.2 kilo- Hertz and which are logarithmically spaced in frequency, four channels per decade. The time associated with each set of averages is the beginning of the averating interval. Averages are stored in units of volt/meter. During data gaps where complete 48-second intervals are missing, no entries exist in the file, that is, the gaps are not zero-filled or tagged in any other way. Additional information about this dataset and the instrument which produced it can be found elsewhere in this catalog. An overview of the data in this data set can be found in Scarf et al. [1982] and a complete instrument description can be found in Scarf and Gurnett [1977]. \t Processing Level Id : 4 Software Flag : Y Processing Start Time : 1988-08-04\t Parameters :\t Sampling Parameter Name : TIME Data Set Parameter Name : PLASMA WAVE SPECTRUM Sampling Parameter Resolution : 48.000000 Minimum Sampling Parameter : 197708201553.000000 Sampling Parameter Interval : 48.000000 Minimum Available Sampling Int : 4.000000 Data Set Parameter Unit : VOLT/METER Noise Level : 0.000005 Sampling Parameter Unit : SECOND\t Description ----------- A set of derived parameters consisting of wave electric field intensities or electric field spectral densities at various contiguous frequencies over a range of frequencies. The MKS units are: Volts/Meter or Volts**2/(Hertz.Meter**2), respectively. Source Instrument Parameters :\t Instrument Host ID : VG2 Data Set Parameter Name : PLASMA WAVE SPECTRUM Instrument Parameter Name : ELECTRIC FIELD WAVEFORM Important Instrument Parameters : 1\t \t Instrument Host ID : VG2 Data Set Parameter Name : PLASMA WAVE SPECTRUM Instrument Parameter Name : ELECTRIC FIELD COMPONENT Important Instrument Parameters : 1\t \t Instrument Host ID : VG2 Data Set Parameter Name : PLASMA WAVE SPECTRUM Instrument Parameter Name : MAGNETIC FIELD COMPONENT Important Instrument Parameters : 1\t \t Instrument Host ID : VG2 Data Set Parameter Name : PLASMA WAVE SPECTRUM Instrument Parameter Name : WAVE ELECTRIC FIELD INTENSITY Important Instrument Parameters : 1\t \t Instrument Host ID : VG2 Data Set Parameter Name : PLASMA WAVE SPECTRUM Instrument Parameter Name : WAVE MAGNETIC FIELD INTENSITY Important Instrument Parameters : 1\t Processing : Processing History ------------------\t Source Data Set ID : N/A Software : UNK Product Data Set ID : VG2-S-PWS-4-SA-48.0SEC\t \t Source Data Set ID : VG2-S-PWS-2-SA-4.0SEC Software : V2S48 Product Data Set ID : VG2-S-PWS-4-SA-48.0SEC\t Software 'V2S48' ---------------- V2S48 is a specialized, hard-coded routine to process a specific interval of Voyager 2 PWS spectrum analyzer data around Saturn encounter. Input is from MSF or CD data sets produced and stored at the University of Iowa, and output is to ASCII text files which are compatible with PDS data loading procedures. These files contain information corresponding to the VG2-S-PWS-4-SA-48.0SEC data set. \t Software Name : V2S48 Software Type : N/A Software Release Date : 1988-08-01 Node ID : PPI-IOWA Cognizant Engineer : MR. LARRY J. GRANROTH Software Access Description : NOT ACCESSIBLE THROUGH PDS CATALOG . - CONTACT NODE\t
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| DATA_SET_RELEASE_DATE |
1988-08-04T00:00:00.000Z
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| START_TIME |
1981-08-24T12:00:00.000Z
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| STOP_TIME |
1981-09-01T12:00:00.000Z
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| MISSION_NAME |
COMET SL9/JUPITER COLLISION
VOYAGER
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| MISSION_START_DATE |
1993-01-01T12:00:00.000Z
1972-07-01T12:00:00.000Z
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| MISSION_STOP_DATE |
1996-01-01T12:00:00.000Z
N/A (ongoing)
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| TARGET_NAME |
SATURN
|
| TARGET_TYPE |
PLANET
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| INSTRUMENT_HOST_ID |
VG2
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| INSTRUMENT_NAME |
PLASMA WAVE RECEIVER
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| INSTRUMENT_ID |
PWS
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| INSTRUMENT_TYPE |
PLASMA WAVE SPECTROMETER
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| NODE_NAME |
Planetary Plasma Interactions
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| ARCHIVE_STATUS |
SUPERSEDED
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| CONFIDENCE_LEVEL_NOTE |
Overview : This data set includes all available spectrum analyzer data within the interval of time covered. The data set has been cleaned as well as possible for periodic noise spikes due to a stepper motor operating on the LECP and a modulated grid within the PLS. The averages do not include these noise spikes. Other possible sources of noise which have not been eliminated include random intense spikes of noise below 1 kiloHertz due to the operation of attitude control thrusters. Other randomly occurring spikes or time periods of intense spikes over the entire frequency range are indicative of telemetry errors. No attempt has been made to remove spikes since some could be valid data, i.e. real bursts of wave activity. The 17.8-Hz channel is sometimes contaminated by interference from the PRA instrument, depending on that instrument's mode. This interference is at a relatively constant level. A failure in the Voyager 2 flight data system a few months after launch has decreased the sensitivity and the calibration accuracy of the upper 8 spectrum analyzer channels (i.e. 1 kiloHertz and higher).
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| CITATION_DESCRIPTION |
Citation TBD
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| ABSTRACT_TEXT |
This data set consists of 48-second calibrated, averaged wave electric field intensities from the Voyager 2 Plasma Wave Receiver spectrum analyzer obtained in the vicinity of the Saturnian magnetosphere. For each 48-second interval, a geometric average field strength is determined for each of the 16 spectrum analyzer channels whose center frequencies range from 10 Hertz to 56.2 kilo- Hertz and which are logarithmically spaced in frequency, four channels per decade. The time associated with each set of averages is the beginning of the averating interval. Averages are stored in units of volt/meter. During data gaps where complete 48-second intervals are missing, no entries exist in the file, that is, the gaps are not zero-filled or tagged in any other way. Additional information about this dataset and the instrument which produced it can be found elsewhere in this catalog. An overview of the data in this data set can be found in Scarf et al. [1982] and a complete instrument description can be found in Scarf and Gurnett [1977].
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| PRODUCER_FULL_NAME |
DR. WILLIAM S. KURTH
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| SEARCH/ACCESS DATA |
Planetary Plasma Interactions Website
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