Version:2.4.0
NumericalData
ResourceID
spase://CNES/NumericalData/CDPP-Archive/GEOS-2/Ephemeris/GEOS2_POS_VTL2
ResourceHeader
ResourceName
GEOS-2 Geographic Position and Auxiliary Data Level-2 (CDF)
DOI
https://doi.org/10.24400/802406/2teb-w2af
ReleaseDate
2022-07-26 09:56:14Z
Description
This dataset contains GEOS-2 ephemeris:
Low Speed Format,right ascension and declination of the spin axis in S/C system
Cartesian coordinates of the spin axis SpinX, SpinY, SpinZ in VDH
Cartesian coordinates of the sun direction from Earth center in VDH
Angle (Earth-Spacecraft,Earth-Sun direction). All angles in degrees
Latitude Longitude and Distance given in GEO (Geocentric equatorial coord) system
Orbital Parameters
- Apogee : 38456.4 km
- Perigee : 2696.5 km
- Period : 12 h 14 mn
- Inclination: 27.67 deg
- Eccentricity: 0.66
Acknowledgement
Users of these data are encouraged to acknowledge ESA/ESTEC (European Space Agency / European Space Research and Technology Center), DSRI (Danish Space Research Institute), CNES (Centre National d'Etudes Spatiales) for their support to the SCM GEOS team, NASA/GSFC (National Aeronautics and Space Administration / Goddard Space Flight Center) and CNR (Consiglio Nazionale delle Ricerche) for their support to the MAG GEOS team, and the CDPP (Centre des Données de la Physique des Plasmas) for the distribution of the GEOS data, in all publications.
If PI/coI are not part of the publication list, then we suggest to add Specifically, we acknowledge Roger Gendrin and Patrick Robert for use of SCM data from the GEOS mission.
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessURL
Name
REGARDS
URL
Description
Access via CNES Data Archive for CDPP
Format
CDF
ProcessingLevel
Calibrated
ProviderProcessingLevel
2
InstrumentIDs
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
1978-07-26 00:00:00Z
StopDate
1983-01-31 00:00:00Z
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.Magnetosphere
Parameter #1
Name
Sample rate
Description
Sample rate
Units
Hz
Support
Parameter #2
Name
Low Speed Format
Description
The corresponding duration is 1.37601 s
Support
Parameter #3
Name
Right ascension and declination
Description
Right ascension and declination of the spin axis in S/C system
Units
°
UnitsConversion
0.0174532925>rad
Support
SupportQuantity
Orientation
Parameter #4
Name
Spin axis orientation in VDH
Description
Cartesian coordinates of the spin axis: SpinX, SpinY, SpinZ in VHD
Support
SupportQuantity
Orientation
Parameter #5
Name
Sun direction
Description
Cartesian coordinates of the sun direction from Earth center in VHD
Support
SupportQuantity
Orientation
Parameter #6
Name
Angle
Description
Earth spacecraft direction and Earth Sun direction
Units
°
UnitsConversion
0.0174532925>rad
Support
Parameter #7
Name
Position
Description
Position data: Latitude, Longitude and Distance given in GEO (Geocentric equatorial coord) system
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
Support
SupportQuantity
Positional
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