|Mission duration||7 years (planned)
1.3 years (achieved)
|Launch mass||1,190 kilograms (2,620 lb)|
|Start of mission|
|Launch date||21 July 1988|
|Launch site||Kourou ELA-2|
INSAT-1C was the third in the first generation INSAT series of satellites(termed as INSAT-1) developed by United States to satisfy the domestic communication requirement of India. The Govt. agencies using its services were All India Radio, Doordarshan, Department of Space and Indian Meteorological Department
INSAT-1C was launched from Guiana Space Centre in Kourou using Ariane 3 rocket on July 21, 1988. At launch, it had a mass of 1,190 kilograms (2,620 lb), and an expected operational lifespan of seven years. The satellite was positioned at 93.5° East longitude in geostationary orbit
- Very High Resolution scanning Radiometer (VHRR)
- 12 transponders operating in 2-phases (earth-to-satellite and vice versa).
- Data channel to send data for land based applications.
INSAT-1C mission was a failure and lasted only for about 1.3 years because the satellite lost its 6 C-band transponders and 2 S-band transponders when a power system failure knocked out one of the two buses