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

<https://gcmd.earthdata.nasa.gov/kms/concept/47d0c7c0-683c-42a9-b53b-53b684972b52>
  skos:prefLabel "GPS"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/d5ac2829-12b3-41c0-8ec1-c00ec8ad1a0d> .

<https://gcmd.earthdata.nasa.gov/kms/concept/d5ac2829-12b3-41c0-8ec1-c00ec8ad1a0d>
  ns0:altLabel [ ] ;
  skos:definition """[Source: ESA's Gravity Mission GOCE Brochure, http://esamultimedia.esa.int/docs/BR209web.pdf ]

The Satellite-to-Satellite Tracking Instrument (SSTI) consists of 
an advanced dual-frequency, 12-channel GPS receiver and an 
L-band antenna. The SSTI receiver is capable of simultaneously 
acquiring signals broadcast from up to 12 spacecraft in the GPS 
constellation. The SSTI instrument delivers, at 1Hz, so-called 
pseudo-range and carrier-phase measurements on both GPS 
frequencies, as well as a real-time orbit navigation solution. 


Group: Instrument_Details
   Entry_ID: SSTI
   Group: Instrument_Identification
      Instrument_Category: Earth Remote Sensing Instruments
      Instrument_Class: Passive Remote Sensing
      Instrument_Type: Positioning/Navigation
      Instrument_Subtype: GPS
      Short_Name: SSTI
      Long_Name: Satellite-to-Satellite Tracking Instrument
   End_Group
   Group: Instrument_Associated_Sensors
      Short_Name: GPS
   End_Group
   Group: Associated_Platforms
      Short_Name: GOCE
   End_Group
   Online_Resource: http://esamultimedia.esa.int/docs/BR209web.pdf
   Online_Resource: http://www.esa.int/esaLP/ESAHTK1VMOC_LPgoce_0.html
   Creation_Date: 2009-05-15
   Group: Instrument_Logistics
      Instrument_Start_Date: 2009-03-20
      Instrument_Owner: ESA
   End_Group
End_Group"""@en ;
  skos:prefLabel "SSTI"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/47d0c7c0-683c-42a9-b53b-53b684972b52> ;
  a skos:Concept .