GSat 12 [ISRO]
GSAT-12 is an Indian communications satellite being realised as replacement INSAT-3B. The satellite carries 12 Extended C-band transponders and is positioned at 83º East longitude colocated with Insat-2E and Insat-4A with a mission life of 7 years.
The bus system is based on I-1K (I-1000) platform with ASIC based BMU and 64 Ah Li-ion batteries. The satellite weighs 1375 kg with a payload power of 550W and launch is planned onboard PSLV-XL during 2010. The launch vehicle put the GSAT-12 into an elliptical transfer orbit (Sub-GTO) of 284 km perigee and 21000 km apogee. The satellite’s Liquid Apogee Motor raises both apogee and perigee and put the satellite into the circular geostationary orbit of 36000 km.
A similar replacement, GSAT 12R, was launched in December 2020.
Nation: | India |
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Type / Application: | Communication |
Operator: | Insat |
Contractors: | ISRO |
Equipment: | 12 Extended C-band transponders |
Configuration: | I-1K (I-1000) Bus |
Propulsion: | LAM |
Power: | 2 deployable solar arrays, batteries |
Lifetime: | 7 years |
Mass: | 1410 kg (#12); 1450 kg (#12R) |
Orbit: | GEO |
Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
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GSat 12 | 2011-034A | 15.07.2011 | Sr SLP | PSLV-XL | ||
GSat 12R (CMS 01) | 2020-099A | 17.12.2020 | Sr SLP | PSLV-XL |