@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/6f28194d-9df5-4ec4-bbbd-075cb23cc4ae>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The TRACE imaging telescope is the sole science instrument on the spacecraft. Its primary science objectives are to: (1) follow the evolution of magnetic field structures from the solar interior to the corona; (2) investigate the mechanisms of the heating of the outer solar atmosphere; and, (3) determine the triggers and onset of solar flares and mass ejections.

The 30 cm aperture Transition Region and Coronal Explorer (TRACE) telescope on the TRACE mission uses four normal-incidence coatings for the EUV and UV on quadrants of the primary and secondary mirrors. The segmented coatings on solid mirrors form identically sized and perfectly coaligned images. Pointing is internally stabilized to 0.1 arc second against spacecraft jitter. A 1024 x 1024 CCD detector collects images over an 8.5 x 8.5 arc minute field-of-view (FOV). A powerful data handling computer enables very flexible use of the CCD array including adaptive target selection, data compression, and fast operation for a limited FOV.

For more information on the TRACE telescope, see: http://vestige.lmsal.com/TRACE/Project/Instrument/insrument.htm 


Group: Instrument_Details
   Entry_ID: TRACE IMAGING TELESCOPE
   Group: Instrument_Identification
      Instrument_Category: Solar/Space Observing Instruments
      Instrument_Class: Photon/Optical Detectors
      Instrument_Type: Telescopes
      Short_Name: TRACE IMAGING TELESCOPE
      Long_Name: Transition Region and Coronal Explorer Telescope
   End_Group
   Group: Associated_Platforms
      Short_Name: TRACE
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Ultraviolet
      Number_Channels: 8
      Spectral_Frequency_Coverage_Range: 284A - 2500A
      Spectral_Frequency_Resolution: 8.4 - 170 nm
   End_Group
   Online_Resource: http://trace.lmsal.com/Project/Instrument/insrument.htm
   Online_Resource: http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=1998-020A-01
   Online_Resource: http://sunland.gsfc.nasa.gov/smex/
   Sample_Image: http://trace.lmsal.com/Images/insphoto.gif
   Group: Instrument_Logistics
      Instrument_Start_Date: 1998-04-02
      Instrument_Owner: USA/NASA
      Instrument_Owner: Lockheed Martin Solar and Astrophysics Lab
   End_Group
End_Group"""@en ;
  skos:prefLabel "TRACE IMAGING TELESCOPE"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/7502f18e-f489-49f5-b879-27d5407df7ec> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/7502f18e-f489-49f5-b879-27d5407df7ec>
  skos:prefLabel "Telescopes"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/6f28194d-9df5-4ec4-bbbd-075cb23cc4ae> .