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Mission type Communication
Operator ISRO
Spacecraft properties
Bus I-6K (I-6000) Bus
Manufacturer ISRO Satellite Centre
Space Applications Centre
Launch mass 5,725 kilograms (12,621 lb)
Power 11 kilowatts
Start of mission
Launch date 2018 (planned)[1]
Rocket Ariane 5
Launch site Guiana Space Centre
Contractor Arianespace, ESA
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 74° East[2]
Band 40 Ku/Ka band

GSAT-11 is a large planned Indian geostationary communications satellite.

The 5725 kg[citation needed] satellite is based on the new I-6K Bus and carry 40 transponders in the Ku-band and Ka-band frequencies (32 Ka × Ku-Band Forward Link Transponders and 8 Ku × Ka band Return Link Transponders), which are capable of providing up to 14 Gbit/s throughput. The satellite was planned to be launched in May 2018[3], but was delayed after ISRO recalled it back to India from the launch site in French Guiana for additional checks weeks after ISRO lost communication to another communication satellite, the GSAT-6A, soon after its launch in March 2018.[4]

After the satellite was found fit for the launch, the new launch date has been set to 30 November 2018.[3][5] GSAT-11 will be launched from the European spaceport in French Guiana as ISRO's own Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III) rocket can only lift a satellite weighing not more than four tonnes to Geostationary transfer orbit.[6]


GSAT-11 will be developed at the cost of Rs. 500 crore.[7] The payloads will consists of 40 high power Ku, Ka band transponders that will be built at Space Applications Centre in Ahmedabad.[8]

See also[edit]


  1. ^ "Proposed launch date with reference". Retrieved 7 December 2014.
  2. ^ "GSAT-11". Archived from the original on 7 January 2014. Retrieved 7 January 2014.
  3. ^ a b "ISRO Clears Launch Date Of GSAT 11 On November 30". Headlines Today. 6 August 2018. Retrieved 6 August 2018.
  4. ^ Clark, Stephen (27 April 2018). "Concerns with Indian satellite postpone next Ariane 5 launch". SpaceFlight Now. Retrieved 21 May 2018.
  5. ^ "Isro's heaviest sat launch from French Guiana on Nov 30: Sivan". The Times Of India. 6 August 2018. Retrieved 6 August 2018.
  6. ^ "No anomaly in Gsat-11, will fix launch date: Isro".
  7. ^ Kumar, Dilip (25 August 2009). "ISRO geared up for GSAT-10 and GSAT-11". Retrieved 15 October 2017.
  8. ^ K. Raghu (Jul 24, 2009). "Isro to launch GSAT-11 with 40 transponders in 2012". Live Mint. Retrieved March 20, 2013.

External links[edit]