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Communication Satellite GSAT-18 Successfully Launched
Oct 07, 2016

India's latest communication satellite GSAT was successfully launched by a heavy duty rocket of Arianspace from the spaceport of Kourou in French Guiana on October 6. The launch was originally scheduled October 5, but deferred by 24 hours owing to unfavourable weather conditions.

  • Kouro is a French territory located in northeastern coast of South America.

With the weather being clear, the European launcher Ariane-5 VA-231 blasted off at around 2 a.m. (IST) and injected GSAT-18 shortly after orbiting co-passenger Sky Muster II satellite for Australian operator nbn (National Broadband Network) in a flawless flight lasting about 32 minutes.

Key Features

  • GSAT-18, built by the Indian Space Research Organisation (ISRO), aims at providing telecommunications services for the country by strengthening its current fleet of 14 operational telecommunication satellites.
  • GSAT-18 that aims at providing telecommunications services for the country by strengthening ISRO's current fleet of 14 operational telecom satellites was launched into a Geosynchronous Transfer Orbit (GTO) about 32 minutes after the lift-off.
  • After its injection into GTO, ISRO's Master Control Facility (MCF) at Hassan took control of GSAT-18 and performed the initial orbit raising maneuvers using the Liquid Apogee Motor (LAM) of the satellite, placing it in circular Geostationary Orbit.
  • Weighing 3,404 kg at lift-off, GSAT-18 carries 48 communication transponders to provide services in Normal C-band, Upper Extended C-band and Ku-bands of the frequency spectrum.
  • GSAT-18 is designed to provide continuity of services on operational satellites in C-band, Extended C-band and Ku-bands.
  • The designed in-orbit operational life of GSAT-18 is about 15 years.
  • ISRO, which has been dependent on Ariane-5 rocket for carrying its heavier satellites, is developing GSLV Mk III for this purpose.
  • GSAT-18 is the 20th satellite from ISRO to be launched by the European space agency and the mission is the 280th for Arianespace launcher family. 


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