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)

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.	  
	

Sample rate

The corresponding duration is 1.37601 s

Right ascension and declination of the spin axis in S/C system

Cartesian coordinates of the spin axis: SpinX, SpinY, SpinZ in VHD

Cartesian coordinates of the sun direction from Earth center in VHD

Earth spacecraft direction and Earth Sun direction

Position data: Latitude, Longitude and Distance given in GEO (Geocentric equatorial coord) system