Data Set Information
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DATA_SET_NAME |
GALILEO ORBITER EARTH POS EARTH2 FLYBY TRAJ V1.0
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DATA_SET_ID |
GO-E-POS-6-EARTH2-FLYBY-TRAJ-V1.0
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NSSDC_DATA_SET_ID |
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DATA_SET_TERSE_DESCRIPTION |
Galileo Orbiter 60 second sampled trajectory data
from the Earth-2 flyby in GSE and GSM coordinates.
These data cover the interval 1992-11-03 to
1992-12-20.
|
DATA_SET_DESCRIPTION |
Data Set Overview
=================
This dataset contains the Galileo spacecraft trajectory during the
Earth-2 flyby. The data have been derived from SPICE kernels at a 1
minute sample rate. The data are provided in both Geocentric Solar
Ecliptic (GSE) and Geocentric Solar Magnetic (GSM) coordinates and
are given in units of earth radii (Re) where 1 Re = 6378 km.
Data
====
------------------------------------------------------------------
Table 1. Data record structure,
------------------------------------------------------------------
Column Units Description
------------------------------------------------------------------
time seconds S/C event time (UT) in the PDS format
(yyyy-mm-ddThh:mm:ss.sss )
X Re S/C position X component in GSE or GSM coords.
Y_gse Re S/C position Y component in GSE coords.
Z_gse Re S/C position Z component in GSE coords.
Y_gsm Re S/C position Y component in GSM coords.
Z_gsm Re S/C position Z component in GSM coords.
Coordinate Systems
==================
The Galileo trajectory data are being archived in 2 coordinate
systems. Geocentric Solar Ecliptic (GSE) and Geocentric Solar
Magnetic (GSM) are related earth centered coordinate systems. Both
the GSE and GSM X directions are taken along the Earth - Sun line,
positive towards the Sun. The GSE Z direction is parallel to the
ecliptic normal, positive northward, and Y completes the
right-handed set (towards dusk). For GSM, the X-Z plane contains
the Earth's dipole moment vector, positive northward, and Y
completes the right-handed set. GSE coordinates are commonly used
for analyzing the solar wind near the Earth and GSM coordinates are
used when analyzing data inside the Earth's bow shock.
Data Processing
===============
The trajectory has been derived from the Galileo SPK kernel:
'S970311A.BSP'
This kernel was obtained by the PDS-PPI node from the PDS-NAIF
node. The code which produced the trajectory data was developed and
executed at PDS-PPI. This code utilized SPICE routines which were
developed at and distributed by PDS-NAIF. Both SPICE kernels and
code may be available through PDS-NAIF.
|
DATA_SET_RELEASE_DATE |
2003-03-01T00:00:00.000Z
|
START_TIME |
1992-11-03T12:00:00.000Z
|
STOP_TIME |
1992-12-20T12:00:00.000Z
|
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 |
|
INSTRUMENT_ID |
|
INSTRUMENT_TYPE |
|
NODE_NAME |
Planetary Plasma Interactions
|
ARCHIVE_STATUS |
ARCHIVED
|
CONFIDENCE_LEVEL_NOTE |
Confidence Level Overview
=========================
The data have been derived from the Galileo SPICE kernels using
well tested software from the SPICELIB and GLLSPICE subroutine
libraries. Each data point is computed using S/C and planetary
ephemerides computed at the time of the dataset sample (not
interpolated).
|
CITATION_DESCRIPTION |
Joy, S.P., Mafi, J.N., GALILEO ORBITER EARTH POS EARTH2 FLYBY TRAJ
V1.0, GO-E-POS-6-EARTH2-FLYBY-TRAJ-V1.0, NASA Planetary Data
System, 2003
|
ABSTRACT_TEXT |
Galileo Orbiter 60 second sampled trajectory data
from the Earth-2 flyby in GSE and GSM coordinates.
These data cover the interval 1992-11-03 to
1992-12-20.
|
PRODUCER_FULL_NAME |
MARGARET G. KIVELSON
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SEARCH/ACCESS DATA |
Planetary Plasma Interactions Website
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