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The GSAT (Geosynchronous Satellite) series is a family of Indian communications satellites, indigenously developed and operated by the ISRO. The prorgamme was initiated in the early 2000s to create indigenous, multi-purpose, geostationary spacecrafts capable of supporting India's growing needs in telecommunications, broadcasting, broadband, emergency management, reconnaissance and navigation. The programme was supported by the development of Geosynchronous Satellite Launch Vehicle.

Key facts

Spacecraft class.name
GSAT
Spacecraft class.image
GSAT-7A in delpoyed configuration.png
Spacecraft class.caption
The GSAT-7A, a military communications satellite, in deployed configuration
Spacecraft class.manufacturer
ISRO
Spacecraft class.country
India
Spacecraft class.applications
Communications
Spacecraft class.orbits
Geostationary orbit
Spacecraft class.operator
INSAT
Spacecraft class.status
In service
Spacecraft class.built
27
Spacecraft class.orders
6
Spacecraft class.launched
27
Spacecraft class.operational
20
Spacecraft class.retired
3
Spacecraft class.failed
3
Spacecraft class.lost
1
Spacecraft class.first
GSAT-1 (GramSat-1) 18 April 2001
Spacecraft class.last
GSAT-7R (CMS-03) 2 November 2025

via Wikipedia infobox

~15 min read

Article

10 sections
Contents
  • History
  • Launched
  • Planned
  • Statistics
  • Launches by year
  • Launches by rocket
  • Launches by country
  • See also
  • References
  • External links

The GSAT (Geosynchronous Satellite) series is a family of Indian communications satellites, indigenously developed and operated by the ISRO. The prorgamme was initiated in the early 2000s to create indigenous, multi-purpose, geostationary spacecrafts capable of supporting India's growing needs in telecommunications, broadcasting, broadband, emergency management, reconnaissance and navigation. The programme was supported by the development of Geosynchronous Satellite Launch Vehicle.

GSAT satellites include a total of 168 transponders (out of which 95 are leased out to provide services to broadcasters), and operate primarily in C, Extended C, Ku, Ka, S and L bands, with payload configurations tailored for civilian, commercial, and strategic needs. The development of both GSAT satellites and the GSLV launch system represents India's transition from dependence on foreign-built INSAT spacecraft to self-reliant national communications capability. As of 21 November 2025, 27 GSAT satellites manufactured by ISRO have been launched, out of which 20 are in service and six more being planned.

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