Mission typeCommunications
COSPAR ID2020-099A
SATCAT no.47256
Mission durationPlanned: >7 years
Elapsed: 4 months, 21 days
Spacecraft properties
BusI-1K [1]
Launch mass1425 kg [2]
Power1500 watts [3]
Start of mission
Launch date17 December 2020, 10:11 UTC
RocketPSLV-XL C50 [4]
Launch siteSatish Dhawan, Site SLP
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude83.0° E
BandExtended C-band [5]
Coverage areaIndian mainland, Andaman and Nicobar Islands and Lakshadweep Islands

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]


PSLV-C50 CMS-01 at Sriharikota

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]


CMS-01 will be replacing services of GSAT-12 in Extended C-band.


PSLV-C50 CMS-01 launching from Sriharikota, on 17 December 2020.

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


  1. ^ "GSAT-12/12R". Gunter Space Page. Retrieved 6 October 2020.
  2. ^ Launch of PSLV-C50/CMS-01 mission from Satish Dhawan Space Centre (SHAR), Sriharikota (Video) (in English and Hindi). 17 December 2020. 4 minutes 40 seconds minutes in.
  3. ^ a b "PSLV-C50/CMS-01 Brochure". ISRO. 11 December 2020.
  4. ^ a b c "ISRO gearing up for rocket launches with Virtual Launch Control Centre". The Tribune. 5 October 2020.
  5. ^ a b "PSLV-C50/CMS-01". ISRO. Retrieved 11 December 2020.
  6. ^ "ISRO gearing up for launch of small satellite launch vehicles: Sivan". The Hindu. Retrieved 10 November 2020.
  7. ^ "India launches CMS-01 communications satellite". SpaceNews. 17 December 2020. Retrieved 17 December 2020.