GSAT
Encyclopedia
The GSAT satellites are India
's indigenously developed technologies of satellite communications, like digital audio, data and video broadcasting. GSAT has been designed with two S-band and 3 C-band transponders (a high power C-band and two indigenous C-band transponders).
, also known as HealthSat was an experimental satellite
launched on 15th April
2010. Due to failure in the upper cyrogenic stage of the GSLV launch rocket, the satellite was lost in sea. The satelitte was to test various new technologies including the GPS Aided Geo Augmentation Navigation system. If launch was successful, then GSAT-4 would have been one of the heaviest satellites launched by India.
In the run-up to GSAT-11, the space agency is scheduling the launch of other communications satellites in the GSAT series by 2011-12.
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
's indigenously developed technologies of satellite communications, like digital audio, data and video broadcasting. GSAT has been designed with two S-band and 3 C-band transponders (a high power C-band and two indigenous C-band transponders).
GSAT-4
GSAT-4GSAT-4
GSAT-4, also known as HealthSat, was an experimental communication and navigation satellite launched in April 2010 by the Indian Space Research Organisation on the maiden flight of the Geosynchronous Satellite Launch Vehicle Mk.II rocket. It failed to reach orbit after the rocket's third stage...
, also known as HealthSat was an experimental satellite
Satellite
In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavour. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon....
launched on 15th April
April
April is the fourth month of the year in the Julian and Gregorian calendars, and one of four months with a length of 30 days. April was originally the second month of the Roman calendar, before January and February were added by King Numa Pompilius about 700 BC...
2010. Due to failure in the upper cyrogenic stage of the GSLV launch rocket, the satellite was lost in sea. The satelitte was to test various new technologies including the GPS Aided Geo Augmentation Navigation system. If launch was successful, then GSAT-4 would have been one of the heaviest satellites launched by India.
GSAT-11
A new satellite named GSAT-11 will provide advanced telecom services from 2011-12. At 4.5 tonnes, it will weigh more than twice as much as the biggest Indian satellite in orbit now. The advanced communications technology satellite will be launched in mid-2011 on board the Geo-Synchronus Satellite Launch Vehicle (GSLV-Mark III) from ISRO's spaceport at Sriharikota, about 80 km north-east of Chennai. The satellite will be designed at satellite centre in Bangalore, payloads consisting of 40 transponders in Ku/Ka band will be built at the space applications centre in Ahmedabad and the 630-tonne rocket (GSLV-Mark III) will be rolled out from the liquid propulsion systems centre in Thiruvananthapuram. With 16 high capacity multi-beams in Ku/Ka band, GSAT-11 will provide much faster uplinks for a host of communications and broadcasting services, including direct-to-home (DTH television). With a dry mass of 2.1 tonne, the spacecraft will provide 10 GHz of bandwidth, which will be equivalent to about 220 transponders of 36 MHz. The advanced satellite will employ a new 1-4K Bus (computer network). It will be configured with two-sided large solar array panels generating 11 KW of power.In the run-up to GSAT-11, the space agency is scheduling the launch of other communications satellites in the GSAT series by 2011-12.