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earth observation - Shanmugam IAS academy in coimbatore
earth observation


What’s in news?

The annual report of Department of Space was released which reveals a plan of ISRO’s satellite launch to increase its space surveillance.

Key data’s:

  • 10 satellites: Indian Space Research Organisation (ISRO) is gearing up to launch an unprecedented 10 earth observation satellites with space surveillance feature during 2020-21.
  • Current year plan: For the current fiscal year, ISRO has planned for 17 missions – includes the first ever Geo Imaging Satellite GISAT-1’s launch into space which would add to the capabilities of the nation.
  • Among the ten Earth Observation (EO) satellites,
    • three planned as Communication satellite
    • two planned as Navigation satellites
  • Isro’s priority is to boost space surveillance in order to keep an eye on terror launchpads along the borders, checking infiltration and keeping an eye on China’s naval activities in the Indian Ocean Region.
  • GISAT­1: It abbreviated as ‘Geo Imaging Satellite’ — will be the first of two planned Indian EO spacecraft to be placed in a geostationary orbit of around 36,000 km.
  • It will apparently be in a fixed spot looking over the Indian continent at all times.
  • The satellite is planned for launch in the first week of March from the Sriharikota satellite launch center.
  • In future: In fiscal year 2021-22, the space agency will target to add eight more EO satellites – brings a total of 36 missions.
  • Budget allocation: To achieve this feat in 2021-22, the Ministry of Finance allotted a budget of Rs 13,480 crore – the highest ever budget allotted.

Data to know:

  • ISRO has launched many operational remote sensing satellites.
  • India has one of the largest constellations of remote sensing satellites in operation.
    • 13 satellites in Sun-synchronous orbit 
    • 4 satellites in Geostationary orbit
  • Applications: The data from these satellites have been used for several applications – Agriculture, water resources, urban planning, rural development, mineral prospecting, environment, forestry, ocean resources and disaster management.
  • India’s first advance earth observation satellite – Hyper Spectral Imaging Satellite (HysIS) launched in 2018. The data will be applied in defence, agriculture, land use and mineral exploration and also in Agriculture, Forestry, Soil Survey, Geology, Coastal Zone Studies, Inland water Studies, Environmental monitoring, Pollution Detection from Industries.

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