@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/d3b6b9b2-055e-4a11-b0e6-58f233f24b37>
  ns0:altLabel [ ] ;
  skos:definition """Spacecraft Brief Description
  The   GEOS   2   (Geodetic   Earth   Orbiting   Satellite)   was  a
  gravity-gradient-stabilized,    solar-cell-powered   spacecraft   that
  carried   electronic   and  geodetic  instrumentation.   The  geodetic
  instrumentation  systems  included  (1)  four optical beacons, (2) two
  C-band  radar  transponders,  (3)  a  passive  radar  reflector, (4) a
  sequential  collation  of range radio range transponder, (5) a Goddard
  range  and  range  rate  transponder,  (6)  laser  reflectors, and (7)
  Doppler beacons.  Non-geodetic systems included a laser detector and a
  Minitrack  interferometer  beacon.   The  objectives of the spacecraft
  were  to  optimize  optical  station visibility periods and to provide
  complementary  data for inclination-dependent terms established by the
  Explorer  29  (GEOS 1) gravimetric studies.  The spacecraft was placed
  into  a  retrograde orbit to accomplish these objectives.  Operational
  problems  occurred  in  the  main  power  system, optical beacon flash
  system,  and  the  spacecraft  clock,  and  adjustments  in scheduling
  resulted in nominal operations.
Auxiliary Information
  Launch Date and Time : 1968-01-11 16:19:00
  Epoch Date and Time :  1977-02-28
  Orbit Type :  Geocentric
  Apogee(km) :    1570.
  Perigee(km) :   1082.
  Inclination :   105.8
  Date of last update :  1992-03-09


Group: Platform_Details
   Entry_ID: GEOS-2
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: GEOS (Geodetic Earth Orbiting Satellite)
      Short_Name: GEOS-2
      Long_Name: Geodetic Earth Orbiting Satellite-2
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: GEOS-2
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: RADIO TRANSPONDERS
      Short_Name: OPTICAL BEACON
   End_Group
   Group: Orbit
      Orbit_Inclination: 105.8
      Perigee: 1082 km
      Apogee: 1570 km
   End_Group
   Creation_Date: 2007-09-26
   Online_Resource: http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1978-071A
   Group: Platform_Logistics
      Launch_Date: 1968-01-11
      Primary_Sponsor: NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "GEOS-2"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/608e831d-f722-4a97-b173-a308d7bc6dd2> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/608e831d-f722-4a97-b173-a308d7bc6dd2>
  skos:prefLabel "GEOS (Geodetic Earth Orbiting Satellite)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/d3b6b9b2-055e-4a11-b0e6-58f233f24b37> .