@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/3e8bc0c6-f599-4e23-9535-449af00edd61>
  skos:prefLabel "IRS (Indian Remote Sensing Satellite)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/8f7e0fb3-1917-4bb5-ae90-93af14ef0c51> .

<https://gcmd.earthdata.nasa.gov/kms/concept/8f7e0fb3-1917-4bb5-ae90-93af14ef0c51>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The Indian Remote Sensing Satellite-1A (IRS-1A) was launched on March 17, 1988.  IRS-1A is the first of a series of semi-operational/ operational remote sensing satellites developed by Indian Space Research Organisation (ISRO) for land-based applications such as agriculture,forestry, geology, and hydrology.  The three-axis-stabilized sun-synchronous satellite carries two linear imaging self-scanned sensors (LISS). LISS-1 and LISS-II perform "pushbroom" scanning in visible and near IR bands to acquire images of the earth.  Both push-broom scanning sensors operate in the four spectral bands: 0.45-0.52, 0.52-0.59, 0.62-0.68, and 0.77-0.86 micrometer.  Local equatorial crossing time is fixed at around 10 a.m.  The spacecraft platform, measuring 1.56 m x 1.66 m x 1.10 m, has the payload module attached on the top and a deployable solar array stowed on either side.  Attitude control is provided by four momentum wheels, two magnetic torques, and a thruster system. Together these mechanisms provide an estimated accuracy of plus or minus 0.10 deg in all three axes.


Group: Platform_Details
   Entry_ID: IRS-1A
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: IRS (Indian Remote Sensing Satellite)
      Short_Name: IRS-1A
      Long_Name: Indian Remote Sensing Satellite-1A
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: IRS-1A
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: LISS-II
      Short_Name: LISS-I
   End_Group
   Group: Orbit
      Orbit_Altitude: 904 km
      Orbit_Inclination: 99.01 deg
      Period: 103.1minutes
      Repeat_Cycle: 22 days
      Perigee: 863 km
      Apogee: 917 km
      Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous
   End_Group
   Creation_Date: 2007-10-05
   Online_Resource: http://www.isro.gov.in/satellites/irs-1a.aspx
   Sample_Image: http://www.isro.gov.in/satellites/images/irs1a_img.gif
   Group: Platform_Logistics
      Launch_Date: 1988-03-17
      Launch_Site: BAIKONUR COSMODROME, TYURATAM, RUSSIA
      Primary_Sponsor: India
   End_Group
End_Group"""@en ;
  skos:prefLabel "IRS-1A"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/3e8bc0c6-f599-4e23-9535-449af00edd61> ;
  a skos:Concept .