@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/b0376960-fe7c-4117-8da6-d56a124d09bf>
  ns0:altLabel [ ] ;
  skos:definition """BE-C   (Explorer  27)  was  a  small  ionospheric  research  satellite instrumented  with  an  electrostatic  probe, radio beacons, a passive laser  tracking  reflector,  and a Doppler navigation experiment.  Its primary  objective  was  to  obtain  worldwide  observations  of total electron  content between the spacecraft and the earth.  The satellite was  initially  spin  stabilized, but it was despun after solar paddle erection.   Subsequent  stabilization  oriented  the satellite axis of symmetry with the local magnetic field by means of a strong bar magnet and  damping rods.  A three-axis magnetometer and sun sensors provided information  on  the  satellite  attitude and spin rate.  There was no tape   recorder   aboard   so  that  satellite  performance  data  and electrostatic  probe  data  were  observed only when the satellite was within  range  of a ground telemetry station.  Continuous transmitters operated  at  162  and 324 MHz to permit precise tracking by 'Transit' tracking  stations for navigation and geodetic studies.  The satellite was  turned  off  on July 20, 1973, due to frequency interference with higher priority spacecraft.


Group: Platform_Details
   Entry_ID: BE-C
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: BE (Beacon Explorer)
      Short_Name: BE-C
      Long_Name: Beacon Explorer-C
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: DOPPLER BEACONS
      Short_Name: LASER TRACKING REFLECTOR
      Short_Name: RADIO TRANSPONDERS
      Short_Name: PROBES
   End_Group
   Group: Orbit
      Orbit_Inclination: 41.1 degrees
      Perigee: 1320 km
      Apogee: 940 km 
   End_Group
   Creation_Date: 2007-08-29
   Online_Resource: http://cddis.nasa.gov/926/egm96/bec.html
   Group: Platform_Logistics
      Launch_Date: 1965-04-29
      Launch_Site: Wallops Flight Facility, Wallops Island, USA
      Primary_Sponsor: NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "BE-C"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/74cf41a6-464f-44bf-ba05-1535200d6354> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/74cf41a6-464f-44bf-ba05-1535200d6354>
  skos:prefLabel "BE (Beacon Explorer)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/b0376960-fe7c-4117-8da6-d56a124d09bf> .