HPDE.io

Data Access

GEOS-1 Geographic Position and Auxiliary Data Level-2 (RFF)

ResourceID
spase://CNES/NumericalData/CDPP-Archive/GEOS-1/Ephemeris/GEOS1_POS_VTL2_RFF

Description

This dataset contains GEOS-1 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

The data format is RFF (Roproc File Format ftp://ftp.lpp.polytechnique.fr/robert/keep/Biblio_et_CV/Working_documents/2015_Robert_The_Roproc_File_Format_V2p3.pdf)

View XML | View JSON | Edit

Details

Version:2.4.0

NumericalData

ResourceID
spase://CNES/NumericalData/CDPP-Archive/GEOS-1/Ephemeris/GEOS1_POS_VTL2_RFF
ResourceHeader
ResourceName
GEOS-1 Geographic Position and Auxiliary Data Level-2 (RFF)
DOI
https://doi.org/10.24400/802406/6dma-yh4c
ReleaseDate
2022-07-26 09:56:14Z
Description

This dataset contains GEOS-1 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

The data format is RFF (Roproc File Format ftp://ftp.lpp.polytechnique.fr/robert/keep/Biblio_et_CV/Working_documents/2015_Robert_The_Roproc_File_Format_V2p3.pdf)

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
RolePersonStartDateStopDateNote
1.DataProducerspase://CNES/Person/CDPP-Archive/Patrick.Robert
2.GeneralContactspase://CNES/Person/CDPP-Archive/CDPP.general.contact
AccessInformation
RepositoryID
spase://CNES/Repository/CDPP-Archive/REGARDS-CDPP
Availability
Online
AccessURL
Name
REGARDS
URL
https://regards.cnes.fr/user/cdpp/modules/1777?sp=DatasetName;q=DatasetName:GEOS1_POS_VTL2_RFF
Description

Access via CNES Data Archive for CDPP

Format
Text.ASCII
ProcessingLevel
Calibrated
ProviderProcessingLevel
2
InstrumentIDs
spase://CNES/Instrument/CDPP-Archive/GEOS-1/Ephemeris
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
1977-04-27 00:00:00Z
StopDate
1978-06-23 00:00:00Z
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.Magnetosphere
Parameter #1
Name
Sample rate
Description

Sample rate

Units
Hz
Support
SupportQuantity
Other
Parameter #2
Name
Low Speed Format
Description

The corresponding duration is 1.37601 s

Support
SupportQuantity
Other
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
SupportQuantity
Other
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