In News 

    • Astrosat, India’s maiden space-based observatory, has completed six years of successful operations.

    About AstroSat 

    • It was launched by the Indian Space Research Organisation (ISRO) in 2015
    • It is the first dedicated Indian astronomy mission aimed at studying celestial sources in X-ray, optical and UV spectral bands simultaneously.
    •  The payloads cover the energy bands of Ultraviolet (Near and Far), limited optical and X-ray regimes (0.3 keV to 100keV). 
    • The minimum useful life of the AstroSat mission is expected to be 5 years.
    • The scientific objectives of AstroSat mission are:
      • To understand high energy processes in binary star systems containing neutron stars and black holes
      • Estimate magnetic fields of neutron stars
      • Study star birth regions and high energy processes in star systems lying beyond our galaxy
      • Detect new briefly bright X-ray sources in the sky
      • Perform a limited deep field survey of the Universe in the Ultraviolet region.

    Source: IE