Data Set Information
DATA_SET_NAME VG2 URA MAG RESAMP RDR HELIOGRAPHIC COORDINATES 9.6SEC V1.0
DATA_SET_ID VG2-U-MAG-4-RDR-HGCOORDS-9.6SEC-V1.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION
This data set includes data from the Low Field Magnetometer (LFM) in the solar wind the near the Uranus encounter. The actual encounter data (1986-01-24T07:00:00 -> 1986-01-25T04:00:00) are provided in the Uranus Longitude coordinate system. The magnetometer data in the solar wind are given in Heliographic coordinates and the data have been averaged from the 1.92 second resampled data to a 9.6 second resampled rate. The dataset consists of the following columns: 1) ctime (decimal seconds since 1966-01-01T00:00:00.000), 2) pdstime (ISO standard time format), 3-5) spacecraft clock (m65536,m60,fds-line), 6) magnetometer id (1 : LFM, 2 : HFM), 7), Br (radial component), 8) Bt (tangential component), 9) Bn (normal component), 10) Bmag (magnitude of the average components), 11) avg_Bmag (average of the magnitude of the raw components), 12) Lambda (longitude : tan^-1(Bt/Br)), 13) Delta (latitude : sin^-1(Bn/avg_Bmag) ), 14-16) rms vector (Pythagorean root mean square deviation of the component averages), 17) npts (number of points in average), 18) flag a character string which indicates software or s/c hardware intervention which reduces confidence in the data (NULL flags represent 'good' data). The Heliographic coordinate system is defined by the spacecraft centered R, T, N coordinates whose unit vector are: R - along the Sun-spacecraft line, positive away from the Sun; T - parallel to Sun's equator, positive in the sense of Jupiter's motion; N - equal to R x T. An ancillary data file containing the derived spacecraft magnetic field is provided with this data at a 48 second sample rate. These data provide zero level offsets used in the data processing. S/C field data is provided in spacecraft coordinates. SAMPLING_PARAMETER_NAME : TIME SAMPLING_PARAMETER_RESOLUTION : 0.06 MINIMUM_SAMPLING_PARAMETER : 0.06 MAXIMUM_SAMPLING_PARAMETER : 0.06 SAMPLING_PARAMETER_INTERVAL : 9.6 MINIMUM_AVAILABLE_SAMPLING_INT : 9.6 SAMPLING_PARAMETER_UNIT : SECOND DATA_SET_PARAMETER_NAME : MAGNETIC FIELD VECTOR NOISE_LEVEL : 0.006 DATA_SET_PARAMETER_UNIT : NANOTESLA
DATA_SET_RELEASE_DATE 1993-02-01T00:00:00.000Z
START_TIME 1986-01-21T12:00:00.319Z
STOP_TIME 1986-01-30T11:59:57.445Z
MISSION_NAME VOYAGER
MISSION_START_DATE 1972-07-01T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME URANUS
TARGET_TYPE PLANET
INSTRUMENT_HOST_ID VG2
INSTRUMENT_NAME TRIAXIAL FLUXGATE MAGNETOMETER
INSTRUMENT_ID MAG
INSTRUMENT_TYPE MAGNETOMETER
NODE_NAME Planetary Plasma Interactions
ARCHIVE_STATUS ARCHIVED
CONFIDENCE_LEVEL_NOTE
This dataset contains some data gaps and spikes. The dataset does contain a flag value which has been provided by the PI (Norman Ness) that indicates whether or not a particular record has been contaminated by software error or by spacecraft interference ( a NULL flag string indicates good data. Strings which contain characters may be contaminated in one or more ways. Some records that are obviously contaminated have not been flagged.
CITATION_DESCRIPTION Connerney, J.E.P., VG2-U-MAG-4-RDR-HGCOORDS-9.6SEC-V1.0, VG2 URA MAG RESAMP RDR HELIOGRAPHIC COORDINATES, 9.6SEC V1.0, NASA Planetary Data System, 1993.
ABSTRACT_TEXT This data set includes data from the Low Field Magnetometer (LFM) in the solar wind the near the Uranus encounter. The actual encounter data (1986-01-24T07:00:00 -> 1986-01-25T04:00:00) are provided in the Uranus Longitude coordinate system. The magnetometer data in the solar wind are given in Heliographic coordinates and the data have been averaged from the 1.92 second resampled data to a 9.6 second resampled rate.
PRODUCER_FULL_NAME DR. JOHN E. P. CONNERNEY
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