@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/2435bd13-980a-42ad-98f8-9eac9457bce4>
  ns0:altLabel [ ] ;
  skos:definition """[Text Source:  Scott A. Budzien, NRL, Washington, DC; and K. F. Dymond, D. H. Chuah, and C. Coker, Tiny "Ionospheric Photometer science program, data products, and operations on COSMIC",  Fourth Symposium on Space Weather, 2007,  http://ams.confex.com/ams/87ANNUAL/techprogram/paper_120405.htm ]

The Tiny Ionospheric Photometer (TIP) sensors aboard the Constellation Observing System for Meterology, Ionosphere and Climate (COSMIC) spacecraft comprise a suite of six nadir-viewing ultraviolet photometers for characterizing the Earth's nightside ionosphere. The TIP instruments complement the ionospheric capabilities of the GPS occultation experiment (GOX) by characterizing horizontal ionospheric density gradients. These photometers target OI 135.6 nm emission produced by ionospheric O++e recombination and measure ionospheric structure with a horizontal resolution of 10 – 30 km and sensitivity of greater than 300 counts/s/Rayleigh. The satellites initially orbited in the same plane at 450 km, but over the course of 13 months they are individually raised to their final 750~km orbits in six planes separated by 24° in right ascension. This deployment period provides opportunities for cross-calibration among the sensors, for multi-pass observations as the satellites orbit together early in the mission, and for observations at different spatial resolutions as the spacecraft operate at different altitudes. TIP data and basic Level 1 data products are processed and disseminated by the COSMIC Data Analysis and Archive Center (CDAAC) at UCAR and the Taiwan Analysis Center for COSMIC (TACC). Additionally, advanced algorithms and higher-level data products are generated and disseminated by the TIP operations center at NRL, including ionospheric morphology products, simple ionospheric electron densities, and combined GOX/TIP data products. COSMIC data will also be incorporated into the Utah State University Global Assimilation of Ionospheric Measurements (GAIM) model operating at NRL.


Group: Instrument_Details
   Entry_ID: TIP
   Group: Instrument_Identification
      Instrument_Category: Earth Remote Sensing Instruments
      Instrument_Class: Passive Remote Sensing
      Instrument_Type: Photon/Optical Detectors
      Instrument_Subtype: Photometers
      Short_Name: TIP
      Long_Name: Tiny Atmospheric Photometer
   End_Group
   Group: Associated_Platforms
      Short_Name: COSMIC/FORMOSAT-3
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Spectral_Frequency_Coverage_Range: 135.6 nm
   End_Group
   Online_Resource: http://ams.confex.com/ams/87ANNUAL/techprogram/paper_120405.htm
   Online_Resource: http://adsabs.harvard.edu/abs/2004AGUSMSA51A..01F
   Online_Resource: http://www.cosmic.ucar.edu/
   Online_Resource: http://cosmic-io.cosmic.ucar.edu/cdaac/
   Creation_Date: 2009-10-20
   Group: Instrument_Logistics
      Instrument_Owner: DOD/United States Naval Research Laboratory
      Instrument_Owner: NSF/UCAR
   End_Group
End_Group"""@en ;
  skos:prefLabel "TIP"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/f66daf4f-4d71-49a0-9d3d-205dc7f1faed> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/f66daf4f-4d71-49a0-9d3d-205dc7f1faed>
  skos:prefLabel "Photometers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/2435bd13-980a-42ad-98f8-9eac9457bce4> .