@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/de43af49-b240-40e2-b412-9ba68c15ed7f>
  ns0:altLabel [ ] ;
  skos:definition """The K-band ranging (KBR) system is the instrument of GRACE which measures the
dual one-way range change between both satellites. Both KBR are identical,
except of the frequencies, which are shifted by 500 KHz to avoid cross-talk
between transmitted and received signals and to offset the down-converted
signal from zero frequency. Each satellite transmits carrier phase signals on
two frequencies allowing for ionospheric corrections.

[Summary provided by NASA.]


Group: Instrument_Details
   Entry_ID: HAIRS
   Group: Instrument_Identification
      Instrument_Category: Earth Remote Sensing Instruments
      Instrument_Class: Passive Remote Sensing
      Instrument_Type: Positioning/Navigation
      Instrument_Subtype: Radio
      Short_Name: HAIRS
      Long_Name: High Accuracy Inter-satellite Ranging System
   End_Group
   Group: Associated_Platforms
      Short_Name: GRACE
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Radio
   End_Group
   Online_Resource: http://www.asd.ssc.nasa.gov/m2m/sensor_report.aspx?sensor_id=1094
   Creation_Date: 2007-02-06
   Group: Instrument_Logistics
      Instrument_Owner: GFZ Potsdam
   End_Group
End_Group"""@en ;
  skos:prefLabel "HAIRS"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/7561d126-2baf-4583-a6cc-f8159ebf8e94> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/7561d126-2baf-4583-a6cc-f8159ebf8e94>
  skos:prefLabel "Radio"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/de43af49-b240-40e2-b412-9ba68c15ed7f> .