CMS-01 (formerly known as GSAT-12R [6]) is a communication satellite designed and developed by the Indian Space Research Organisation (ISRO). This satellite is a replacement of the aging GSAT-12 at 83.0° E.[7] This satellite was successfully launched by Polar Satellite Launch Vehicle-XL C50 on 17 December 2020 at 10:11 UTC.[3]
| Names | GSAT-12R |
|---|---|
| Mission type | Communications |
| Operator | ISRO |
| COSPAR ID | 2020-099A |
| SATCAT no. | 47256 |
| Mission duration | Planned: >7 years Elapsed: 1 year, 5 months, 7 days |
| Spacecraft properties | |
| Bus | I-1K[1] |
| Manufacturer | ISRO |
| Launch mass | 1425 kg [2] |
| Power | 1500 watts [3] |
| Start of mission | |
| Launch date | 17 December 2020, 10:11 UTC |
| Rocket | PSLV-C50[4] |
| Launch site | Satish Dhawan, Site SLP |
| Contractor | ISRO |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 83.0° E |
| Transponders | |
| Band | Extended C-band[5] |
| Coverage area | Indian mainland, Andaman and Nicobar Islands and Lakshadweep Islands |
GSAT ← GSAT-30 CMS-02 → | |

CMS-01 is considered to be a replacement of the aged satellite GSAT-12. It provides services like tele-education, tele-medicine, disaster management support and Satellite Internet access.[4] Approved cost of CMS-01 is ₹200 crore (US$26 million).[8]
CMS-01 will be replacing services of GSAT-12 in Extended C-band.

CMS-01 was successfully launched from a PSLV-C50 launch vehicle on 17 December 2020 at 10:11 UTC.[5][4]
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