INSAT-4A spacecraft in deployed configuration
|Mission duration||Planned: 12 years |
Achieved: 13 years, 9 months, 29 days
|Launch mass||3,081 kilograms (6,792 lb)|
|Dry mass||1,386 kilograms (3,056 lb)|
|Dimensions||2.8 x 1.7 x 2.0 m|
|Start of mission|
|Launch date||22 December 2005, 22:33UTC|
|Launch site||Kourou ELA-3|
|End of mission|
|Disposal||Moved to a graveyard orbit|
|Deactivated||21 October 2019|
|Slot||83° East (Coordinates: )|
|Band||12 Ku band|
|TWTA power||140 & 63 watts|
|EIRP||51 & 38 dbW|
INSAT-4A was the first one in the INSAT-4 Satellites series, providing services in the Ku and C band frequency bands. At the time of launch, it was the heaviest satellite India had produced. The Ku transponders cover the Indian main land and C-Band transponders cover an extended area. It has a dozen Ku transponders and another dozen of C-band transponders. This spacecraft was placed at 83°E along with INSAT-2E and INSAT-3B, by Ariane launch vehicle (ARIANE5-V169).
INSAT-4A was a communication satellite intended for providing high quality television, telecommunication, broadcasting services and was the first satellite to be launched in the INSAT-4 series.
INSAT-4A was launched by an Ariane 5, produced by Arianespace, on 22 Dec 2005 at 4.22 am IST from Kourou, French Guiana. It was placed into a Geosynchronous Transfer Orbit (GTO), 30 minutes after lift-off in 3-axis stabilized mode, with a perigee of 859 km and an apogee of 36,055 km. Its co-passenger on board was Meteosat-9 of EUMETSAT.
The satellite was placed in the graveyard orbit on 21 October 2019 after almost 14 years in service. A replacement satellite GSAT-30 was launched on 21:05 UTC, 16 January 2020 aboard Ariane 5 VA251.
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