Maharashtra State PSC Model Paper 2

The Correct Answer is Option 1 i.e C.

• Astrosat:
  • ASTROSAT is India's first dedicated multi-wavelength space observatory.
  • AstroSat mission enables the simultaneous multi-wavelength observations of various astronomical objects with a single satellite.
  • ASTROSAT observes the universe in the optical, Ultraviolet, low and high energy X-ray regions of the electromagnetic spectrum
  • It was launched by PSLV-C30.
• Remote sensing satellites:
  • IRS-1A was the first of the series of indigenous state-of-art operating remote sensing satellites.
  • It was successfully launched into a polar sun-synchronous orbit on March 17, 1988.
  • Wetland mapping, Flood risk zone mapping, and flood damage assessment are few applications of remote sensing satellites.
• Communication Satellite:
  • Indian First Communication Satellite is APPLE.
  • The satellite successfully launched by Ariane-1, from French Guiana on June 19, 1981.
  • APPLE was used in several communication experiments including relay of TV programmes, and radio networking.
• Reconnaissance satellite:
  • RISAT-2  was the first India Reconnaissance satellite
  • It is a Radar Imaging Satellite with the all-weather capability to take images of the earth.
  • It was the first dedicated satellite for spying and reconnaissance for military use.