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

<https://gcmd.earthdata.nasa.gov/kms/concept/af0968ce-ffe3-44a0-86de-2ec9b9a8fa5d>
  skos:prefLabel "G - I"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/715b3ba7-61be-4298-b1b9-13b4c3f0d960> .

<https://gcmd.earthdata.nasa.gov/kms/concept/715b3ba7-61be-4298-b1b9-13b4c3f0d960>
  ns0:altLabel [ ] ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/af0968ce-ffe3-44a0-86de-2ec9b9a8fa5d> ;
  skos:prefLabel "IBSS"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/projects> ;
  skos:definition """IBSS (Infrared Background Signature Survey)

      Launch: April 28,1991
      Landed: May 6, 1991

      Dedicated Department of Defense mission. Unclassified payload
      included Air Force Program-675 (AFP-675); Infrared Background
      Signature Survey (IBSS) with Critical Ionization Velocity (CIV),
      Chemical Release Observation (CRO) and Shuttle Pallet
      Satellite-II (SPAS-II) experiments; and Space Test Payload-1
      (STP-1). Classified payload consisted of Multi-Purpose Release
      Canister (MPEC). Also on board was Radiation Monitoring
      Equipment III (RME III) and Cloud Logic to Optimize Use of
      Defense Systems-1A (CLOUDS-1).

      The Infrared Background Signature Survey (IBSS) Program was a
      Department of Defense (DoD) Ballistic Missile Defense Organization
      (BMDO) project flown on the Space Shuttle STS-39 mission in 1991.
      IBSS instruments included the IR Sensor, the Arizona
      Imager/Spectrograph (AIS), and two Low Light Light Level TV (LLLTV)
      cameras which were mounted on the improved Shuttle Pallet Satellite
      (SPAS II). Data was taken with SPAS II in a free-flying deployed mode,
      while attached to the Remote Manipulator System (RMS) and inside the
      Shuttle bay. The IR sensor was composed of two sensors, a radiometer
      and a spectrometer. The AIS istrument was composed of nine grating
      spectrographs and twelve optical imagers. The LLLTV instrument
      consisted of two cameras operating in the visible region of the
      spectrum.

      For more information, link to
"http://www-pao.ksc.nasa.gov/kscpao/chron/sts-39.htm\""""@en ;
  a skos:Concept .