@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/15f02273-9e95-43d7-a2b0-e6cf8f569f69>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM)
is a panchromatic radiometer with 2.5-meter spatial resolution. Its
data will be used for extracting highly accurate digital elevation
model (DEM).

The PRISM has three independent optical systems for nadir, forward and
backward looking to achieve along-track stereoscopy. Each telescope
consists of three mirrors and several CCD detectors for pushbroom
scanning. The nadir-looking telescope provides 70 km width coverage;
forward and backward telescopes provide 35 km width coverage each.

The telescopes are installed on both side of its optical bench with
precise temperature control. Forward and backward telescopes are
inclined + and - 24 degrees from nadir to realize a base-to-height
ratio of 1.0. PRISM's wide field of view (FOV) provides fully
overlapped three-stereo (triplet) images (35 km width) without
mechanical scanning or yaw steering of the satellite. Without this
wide FOV, forward, nadir, and backward looking images would not
overlap each other due to the Earth's rotation.

[Summary provided by JAXA.]


Group: Instrument_Details
   Entry_ID: PRISM
   Group: Instrument_Identification
      Instrument_Category: Earth Remote Sensing Instruments
      Instrument_Class: Passive Remote Sensing
      Instrument_Type: Spectrometers/Radiometers
      Instrument_Subtype: Imaging Spectrometers/Radiometers
      Short_Name: PRISM
      Long_Name: Panchromatic Remote-sensing Instrument for Stereo Mapping
   End_Group
   Group: Associated_Platforms
      Short_Name: ALOS
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Spectral_Frequency_Coverage_Range: 0.52 μm - 0.77 μm
   End_Group
   Online_Resource: http://www.eorc.jaxa.jp/hatoyama/satellite/sendata/prism_e.html
   Sample_Image: http://www.eorc.jaxa.jp/hatoyama/satellite/sendata/image/prism_image.jpg
   Group: Instrument_Logistics
      Instrument_Owner: JAPAN/JAXA
   End_Group
End_Group"""@en ;
  skos:prefLabel "PRISM"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/944b7691-af37-4fb4-9393-c114e7997829> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/944b7691-af37-4fb4-9393-c114e7997829>
  skos:prefLabel "Imaging Spectrometers/Radiometers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/15f02273-9e95-43d7-a2b0-e6cf8f569f69> .