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

<https://gcmd.earthdata.nasa.gov/kms/concept/1a5dc311-b702-4712-868a-f306bbdc0833>
  skos:prefLabel "OSO (Orbiting Solar Observatory)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/a2f755b5-e29a-4e57-8372-ab18a76c62ca> .

<https://gcmd.earthdata.nasa.gov/kms/concept/a2f755b5-e29a-4e57-8372-ab18a76c62ca>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """Spacecraft Brief Description
  The  objectives  of  the  OSO  satellite  series were to perform solar
  physics experiments above the atmosphere during a complete solar cycle
  and  to map the entire celestial sphere for direction and intensity of
  UV  light and X-ray and gamma radiation.  The OSO 7 platform consisted
  of  a  sail  section, which pointed two experiments continually toward
  the  sun,  and a wheel section, which spun about an axis perpendicular
  to  the  pointing  direction of the sail and carried four experiments.
  Attitude  adjustment was performed by gas jets and a magnetic torquing
  coil.   A  pointing  control permitted the pointed experiments to scan
  the  region  of  the solar disk in a 60- by 60-arc-min raster pattern.
  In addition, the pointed section could be commanded to select and scan
  any  7.5-  by  5-arc-min  region  near  the  solar  disk.   Data  were
  simultaneously  recorded  on tape and transmitted by PCM/PM telemetry.
  A  command  system  provided  for  at least 155 ground-based commands.
  Only real-time data have been received since May 1973, when the second
  tape recorder failed.  The spacecraft reentered the earth's atmosphere
  July 9, 1974.
Auxiliary Information
  Launch Date and Time : 1971-09-29 09:50:00
  Epoch Date and Time :  1971-09-30
  Orbit Type :  Geocentric
  Apogee(km) :     572.
  Perigee(km) :    321.
  Inclination :    33.1
  Date of last update :  2003-01-28

Additional information available at
"http://heasarc.gsfc.nasa.gov/docs/oso7/oso7.html"


Group: Platform_Details
   Entry_ID: OSO-7
   Group: Platform_Identification
      Platform_Category: Solar/Space Observation Satellites
      Platform_Series_or_Entity: OSO (Orbiting Solar Observatory)
      Short_Name: OSO-7
      Long_Name: Orbiting Solar Observatory-7
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: OSO-7
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: GAMMA RADIATION DETECTOR
   End_Group
   Group: Orbit
      Orbit_Inclination: 33.1 degrees
      Perigee: 321 km
      Apogee: 572 km
   End_Group
   Creation_Date: 2007-12-14
   Online_Resource: http://heasarc.gsfc.nasa.gov/docs/oso7/oso7.html
   Sample_Image: http://heasarc.gsfc.nasa.gov/Images/oso/oso7_flight.gif
   Group: Platform_Logistics
      Launch_Date: 1971-09-29
      Primary_Sponsor: NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "OSO-7"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1a5dc311-b702-4712-868a-f306bbdc0833> ;
  a skos:Concept .