@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/f18c5acb-6318-4d40-bda2-459ec09c57f5>
  ns0:altLabel [ ] ;
  skos:definition """BE-B   (Explorer  22)  was  a  small  ionospheric  research  satellite instrumented  with an electrostatic probe, a 20-, 40-, and 41-Hz radio beacon,  a  passive laser tracking reflector, and a Doppler navigation experiment.   Its  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 could be observed only when the satellite was within  range  of a ground telemetry station.  Continuous transmitters also  operated  at  162  and  324  MHz  to  permit precise tracking by 'Transit'  tracking  stations for navigation and geodetic studies.  In August  1968,  data  acquisition from the satellite telemetry channels was  discontinued.   In  July  1969, tracking and world map production were  discontinued  by  GSFC,  and world map production based on NORAD orbit elements was subsequently assumed by ESRO.  The satellite failed in  February  1970  and  BE-C  was  turned  on  in order to  partially replace use made of this satellite beacon experiment. 


Group: Platform_Details
   Entry_ID: BE-B
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: BE (Beacon Explorer)
      Short_Name: BE-B
      Long_Name: Beacon Explorer-B
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: Explorer 22
      Short_Name: 00899
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: DOPPLER RADAR
   End_Group
   Group: Orbit
      Orbit_Inclination: 79.7 degrees
      Perigee: 889 km
      Apogee: 1081 km
   End_Group
   Creation_Date: 2007-08-29
   Online_Resource: http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1964-064A
   Group: Platform_Logistics
      Launch_Date: 1964-10-10
      Launch_Site: Vandenberg Air Force Base, USA
      Primary_Sponsor: NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "BE-B"@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/f18c5acb-6318-4d40-bda2-459ec09c57f5> .