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GSat 7, 7A (Insat 4F, Rukmini)

GSat 7 [ISRO]

GSAT-7 / INSAT-4F or Rukmini is a multi-band satellite carrying payloads in UHF, S-band, C-band and Ku-band to be used by the Indian Navy.

It was originally planned to be launched during 2011 onboard GSLV, but was instead moved to a commercial launch by an Ariane-5ECA rocket. It was successfully orbited in August 2013 and positioned at 74º East. The satellite weighs 2650 kg with a payload power of 2000 W and mission life of 9 years.

The multiple-band spacecraft will be used exclusively by the Navy to shore up secure, real-time communications among its warships, submarines, aircraft and land systems. GSAT-7/ INSAT-4F is said to significantly improve the country’s maritime security and intelligence gathering in a wide swathe on the eastern and western flanks of the Indian Ocean region, among others.

A second satellite of this type, GSat 7A, is reportedly for shared use of the Indian Air Force and the Indian Army. GSAT-7A will enable the IAF to interlink different ground radar stations, ground airbase and Airborne early warning and control (AWACS) aircraft such as Beriev A-50 Phalcon and DRDO AEW&CS. the satellite will enhance Network-centric warfare capabilities of the Indian Air Force and therefore enhance it's global operations.

Nation: India
Type / Application: Communication
Operator: Insat
Contractors: ISRO
Equipment: UHF, S-band, C-band and Ku-band transponders
Configuration: I-2K (I-2000) Bus
Propulsion: 440 Newton thrust liquid apogee motor
Power: 2 deployable solar arrays, batteries
Lifetime: 9 years
Mass: 2650 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
GSat 7 (Insat 4F, INAV 1, Rukmini) 2013-044B 29.08.2013 Ko ELA-3 Ariane-5ECA with Eutelsat 25B / Es'hail 1
GSat 7A - 2017

References:

  • ISRO Website
Further Insat missions:
Further GSat missions: