@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/8a7c1795-8625-484d-8f62-6d7204d211b9>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The Global Ultraviolet Imager (GUVI) is one of four instruments that constitute
the TIMED spacecraft, the first mission of the NASA Solar Connections program.
The TIMED spacecraft is being built by Johns Hopkins University Applied Physics
Laboratory and GUVI is a joint collaboration between JHU/APL and the Aerospace
Corporation. TIMED will be used to study the energetics and dynamics of the
Mesosphere and lower Thermosphere between an altitude of approximately 60 to
180 kilometers

GUVI is a far-ultraviolet (115 to 180 nm), scanning imaging spectrograph that
provides horizon-to-horizon images in five selectable wavelength intervals, or
"colors." These colors (HI 121.6 nm, OI 130.4 nm, OI 135.6 nm, and N2
Lyman-Birge-Hopfield bands 140 to 150 nm and 165 to 180 nm) are chosen in order
to produce the GUVI key parameters.

GUVI is based on heritage from the Special Sensor Ultraviolet Spectrographic
Imager (SSUSI), an instrument previously built for Defense Meteorological
Satellite Program Block 5d-3 satellites, which will fly on the DMSP Block 5D3
satellites F-16 through F-20. The instrument consists of a scan mirror feeding
a parabolic telescope and Rowland circle spectrograph, with a wedge-and-strip
detector at the focal plane.

Additional information available at
"http://guvi.jhuapl.edu/about/introduction.shtml"


Group: Instrument_Details
   Entry_ID: GUVI
   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: GUVI
      Long_Name: Global Ultraviolet Imager
   End_Group
   Group: Associated_Platforms
      Short_Name: TIMED
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Ultraviolet
      Number_Channels: 4
      Spectral_Frequency_Coverage_Range: 115 - 180 nm
   End_Group
   Online_Resource: http://guvi.jhuapl.edu/
   Sample_Image: http://guvi.jhuapl.edu/about/photek_tube.jpg
   Group: Instrument_Logistics
      Data_Rate: 8 kbps
      Instrument_Start_Date: 2001-12-07
      Instrument_Owner: Johns Hopkins University/Applied Physics Lab
   End_Group
End_Group"""@en ;
  skos:prefLabel "GUVI"@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/8a7c1795-8625-484d-8f62-6d7204d211b9> .