From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Mission type Communication
Operator ISRO
Mission duration 15 years (Estimated)
Spacecraft properties
Bus I-3K [1]
Manufacturer ISRO Satellite Centre
Space Applications Centre
Launch mass 3,650 kilograms (8,050 lb) [1]
Power 2 solar array batteries
Start of mission
Launch date TBD
Rocket GSLV Mk III [1]
Launch site Satish Dhawan SLP
Contractor ISRO
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 55° East

GSAT-20 is a communication satellite jointly being developed by Indian Space Research Organisation Satellite Centre and Liquid Propulsion Systems Centre[2] and will be launched by ISRO. GSAT-20 will be a continuation of GSAT series of communication satellites. The satellite is intended to add data transmission capacity to the communication infrastructure required by Smart Cities Mission of India.

It will be the first fully Electric Propulsion/EP enabled satellite which can be five to six times more efficient than chemical-based propulsion.[2] It will be the first ISRO made satellite to move from Geostationary transfer orbit to Geosynchronous orbit using Electric Propulsion.[3]


The satellite features a Ka-band high-throughput communications payload with 70 Gbit/s[4] throughput utilizing 40 beams.[5] Each beam will have 2 polarisations, effectively making them 80 beams.[6]


The satellite will be launched by GSLV Mk III. The satellite will be configured around ISRO's I-3K bus with a launch mass of 3,650 kilograms. Lauch not before 2020.

See also[edit]


  1. ^ a b c "Annual Report 2017-18, Department of Space". Department of Space, Government of India. Retrieved 13 February 2018.
  2. ^ a b D.S, Madhumathi (May 1, 2017). "GSAT-9 heralds cost-saving electric propulsion". The Hindu. Bengaluru. The Hindu. Retrieved May 27, 2017.
  3. ^ RAMACHANDRAN, R. (June 26, 2017). "ISRO's Mk III Launched a Little-Known Instrument Called GRASP – This Is What It Does". The Wire. Bengaluru. The Wire. Retrieved June 26, 2017.
  4. ^ Nair, Avinash (May 17, 2017). "ISRO's GSAT-trio to usher in high-speed internet era". The Indian Express. Ahmedabad. Retrieved May 27, 2017.
  5. ^ "GSAT-20".
  6. ^ Vasudeva, Akshay (May 22, 2017). "India to enter high-speed internet era with Isro's new satellites". India: