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GSAT-12 is communication satellite designed and developed by the Indian Space Research Organisation. It is the second satellite to be launched and placed on a GTO using PSLV.[3]

GSAT-12

Mission type	Communications
Operator	ISRO
COSPAR ID	2011-034A
SATCAT no.	37746
Mission duration	Planned: 8 years Elapsed: 10 years, 11 months, 4 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 Dhawan SLP
Contractor	ISRO
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 Extended C band
GSAT ← GSAT-8 GSAT-10 →

Satellite

GSAT-12 is considered to be a replacement of the aged satellite INSAT-3B. It will provide services like tele-education, tele-medicine, disaster management support and satellite internet access.[4]

Payloads

GSAT-12 is equipped with 12 Extended C-band transponders.

Launch

GSAT-12 was launched onboard PSLV-XL C-17 from second launch pad of Satish Dhawan Space Centre on July 15, 2011.[5] The tentative life of satellite is 8 years.[6][7]

Mission Life and Replacement

GSAT-12 has exceeded its planned mission life and continues to operate. A replacement satellite CMS-01(formerly GSAT-12R) was launched on 17 December 2020.[8]

Relocation

GSAT-12 has been relocated from 83°E slot to 48°E slot on 19 March 2021.[9]

References

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