| Mission type | Communications |
|---|---|
| Operator | ISRO |
| COSPAR ID | 2011-034A |
| SATCATno. | 37746 |
| Mission duration | Planned: 8 years Duration: 11 years, 8 months, 8 days |
| Spacecraft properties | |
| Launch mass | 1,412 kilograms (3,113 lb) |
| Dry mass | 559 kilograms (1,232 lb)[1] |
| Start of mission | |
| Launch date | 15 July 2011, 11:18 (2011-07-15UTC11:18Z) UTC |
| Rocket | PSLV-XL C17 |
| Launch site | Satish DhawanSLP |
| Contractor | ISRO |
| End of mission | |
| Disposal | Graveyard orbit |
| Deactivated | March 2023 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 48°E (Relocated: 19 Mar 2021.) 83°E (till 9 Feb 2021) |
| Perigee altitude | 35,782 kilometres (22,234 mi) |
| Apogee altitude | 35,803 kilometres (22,247 mi) |
| Inclination | 0.01 degrees |
| Period | 23.93 hours |
| Epoch | 25 December 2013, 01:49:32 UTC[2] |
| Transponders | |
| Band | 12 ExtendedC band |
GSAT-12 was a communication satellite designed and developed by theIndian Space Research Organisation. It was the second satellite to be launched and placed on aGTO usingPSLV.[3]
GSAT-12 was considered to be a replacement of the aged satelliteINSAT-3B. It provided services like tele-education, tele-medicine, disaster management support and satellite internet access.[4]
GSAT-12 was equipped with 12 Extended C-band transponders.
GSAT-12 was launched onboardPSLV-XL C17 fromsecond launch pad ofSatish Dhawan Space Centre on July 15, 2011.[5] The tentative life of satellite was 8 years.[6][7]
While GSAT-12 was still operational a replacement satelliteCMS-01(formerly GSAT-12R) was launched on 17 December 2020.[8] GSAT-12 was relocated from 83°E slot to 48°E slot on 19 March 2021.[9]
In March 2023 GSAT-12 was retired from its operational service. After seven maneuvers to raise the satellite to a circulargraveyard orbit, 390 km above GEO belt.[10][11][12]
The post mission disposal of GSAT-12 was successfully carried out through 7 manoeuvres to raise the satellite to a circular super-GEO synchronous orbit 390 km above GEO belt.
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