India’s Space Research Organisation is the space agency of the Indian Government headquartered in the city of Bangalore and today it launched eight satellites from one rocket into two different orbits. Prime Minister Narendra Modi tweeted, “Our space scientists keep scripting history.”
Launch vehicle fleet
During the 1960’s – 70’s India started its own launch vehicle program because of the geopolitical and economic considerations. and in 1980 it was successful and prepared to launch the Satellite Launch Vehicle-3 and the more advanced Augmented Satellite Launch Vehicle.
Satellite Launch Vehicle ( SLV )
The Satellite Launch Vehicle, usually known by its abbreviation SLV or SLV-3 which was a 4-stage solid-propellant light launcher. It Was expected to reach the height of 500 km and carry a payload of 40 kg but Only two of its four test flights were successful.
Augmented Satellite Launch Vehicle (ASLV)
The Augmented Satellite Launch Vehicle which is usually known as ASLV was a 5-stage solid rocket with the capability of placing a 150 kg satellite into Low Earth Orbit. This project was started in 1980 but only 2 were successful before it was decommissioned.
Polar Satellite Launch Vehicle (PSLV)
This system is an expendable launch system and it was launched so that India can have its own Remote sensing. PSLV can also launch small satellites into geostationary transfer orbit (GTO). The maximum number of satellites launched by the PSLV in a single launch is 20, in the PSLV-C34 launch on 22 June 2016 (Earth observation satellite( Cartosat-2 Series) and 19 others in the designated polar Sun Synchronous Orbit.
The first GAGAN navigation payload has been fabricated and it was proposed to be flown on GSAT-4 during Apr 2010. However, GSAT-4 was not placed in orbit as GSLV-D3 could not complete the mission. Two more GAGAN payloads will be subsequently flown, one each on two geostationary satellites, GSAT-8 and GSAT-10. On 12 May 2012, ISRO announced the successful testing of its indigenous cryogenic engine for 200 seconds for its forthcoming GSLV-D5 flight.
The INSAT series
The INSAT was a joint venture of various departments All India Radio, Doordarshan, Department of telecommunications, India Meteorological Department and Department of Space. This system was launched to make the telecommunications better and to help the India Meteorological Department.