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Period: to
Insta 1A
The Insat-1A was launched by a Delta in April 1982 but was abandoned in September 1983 when its attitude control propellant was exhausted. -
Insta 2C
Power of four C-band transponders increased to improve communication facilities in remote areas like Northeast and Andaman & Nicobar Islands. Coverage of two other C-band transponders is enlarged to include parts of Southeast Asia, Central Asia and West Asia -
Kalpana 1
METSAT (renamed as Kalpana - 1 on February 5, 2003 after the Indian born American Astronaut Dr. Kalpana Chawla, who died on February 1, 2003 in the US Space Shuttle Columbia disaster) is the first in the series of exclusive meteorological satellites built by ISRO. -
EDUSAT
GSAT-3, known as EDUSAT is meant for distant class room education from school level to higher education. This was the first dedicated "Educational Satellite" that provide the country with satellite based two way communication to class room for delivering educational materials. -
HAMSAT
HAMSAT is a Micro-satellite for providing satellite based Amateur Radio services to the national as well as the international community of Amateur Radio Operators (HAM). It consists of two transponders-one indigenously developed by Indian Amateurs, with the expertise of ISRO and the experience of HAMSAT-INDIA. The second transponder has been developed by a Dutch Amateur Radio Operator and Graduate Engineering student at Higher Technical Institute, Venlo, The Netherlands. -
INSTA-4CR
INSAT–4CR spacecraft is configured with exclusive Ku band employing the I-2K Bus with a mass of 2130 Kg. It was injected into the orbit by GSLV-F04 rocket with enhanced Russian Cryogenic engine and co-located at 74o East longitude along with INSAT–3C / Kalpana–1 / GSAT–3 (EDUSAT).
