India Gearing to Set Up Indian Data Relay Satellite System

In News

India is planning to establish its own space-to-space tracking and communication of its space assets using by putting in place a new series of satellite system called the Indian Data Relay Satellite System (IDRSS).

In-Detail

  • The Indian Space Research Organisation (ISRO) is gearing to set up IDRSS this year with the launch of new satellites.
  • These satellites will track and communicate constantly with Indian satellites, especially those that are in the low-earth orbit and have limited coverage of earth.
  • The IDRSS is a part of ISRO’s roadmap which involves LEO missions like space docking, space station, and outer space expeditions like missions to the moon, Mars and Venus.
  • As per ISRO, IDRSS will also be useful for tracking launches.
  • The first beneficiary of IDRSS will be the crew members of the Gaganyaan Mission.
  • The crew members can be constantly in touch with the ground stations and there will be 100% full visibility.

Work In Progress

  • As per ISRO, work on two IDRSS satellites has already begun.
  • The first satellite will be launched at the end of 2020.
  • The launch will precede the pre-Gaganyaan experimental unmanned space flight which will have a humanoid dummy in it.
  • The second satellite will be placed in orbit in 2021.
  • The two satellites track, send and receive information from the crew 24/7.
  • The coverage will be near-total.

Other Countries

  • Space major nations like the USA and Russia started their space relay program in the late 1970s-80s.
  • Each country has around 10 satellites now.
  • They used the satellites to monitor their space stations Mir and the International Space Station and the Hubble Space Telescope.

IDRSS Satellite Specifications

  • The satellites will be in the 2,000kg class.
  • They will be launched on the GSLV launcher.
  • The satellites will be placed in the geostationary orbits (GEO) around 36,000km away from the surface of the earth.
  • In GEO orbits, the satellites will be facing a fixed area on the earth all the time.
  • One GEO satellite can cover a third of the world and three such satellites will provide complete coverage.

Need for IDRSS

  • To track the human launch mission and the crew craft that travels at a distance of 400
  •  Km from the earth, a dedicated ground station is a must.
  • The existing ground stations are not sufficient for the task.
  • ISRO would have to build a series of ground stations everywhere or hire them across the globe.
  • This is a costly affair and hence the need for relay satellites.
  • Also, with ground stations, complete tracking of the craft is unlikely.
About Classic IAS Academy 372 Articles
Classic IAS Academy is at the forefront of providing best IAS coaching in delhi, India. The Academy helps the aspirants to tap their innate analytical power to become successful in the exam.

Be the first to comment

Leave a Reply