![]() INSAT-4A spacecraft in deployed configuration | |
Mission type | Communications |
---|---|
Operator | INSAT |
COSPAR ID | 2005-049A |
SATCAT no. | 28911 |
Website | INSAT 4A |
Mission duration | Planned: 12 years Achieved: 13 years, 9 months, 29 days |
Spacecraft properties | |
Bus | I-3K |
Manufacturer | ISRO |
Launch mass | 3,081 kilograms (6,792 lb) |
Dry mass | 1,386 kilograms (3,056 lb)[1] |
Dimensions | 2.8 x 1.7 x 2.0 m |
Power | 5,922 watts |
Start of mission | |
Launch date | 21 December 2005, 22:33 | UTC
Rocket | Ariane 5GS |
Launch site | Kourou ELA-3 |
Contractor | Arianespace |
End of mission | |
Disposal | Moved to a graveyard orbit |
Deactivated | 21 October 2019[2] |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Slot | 83° East (0°N 83°E / 0°N +83°E) |
Period | 24 hours |
Transponders | |
Band | 12 Ku band 12 C-band |
Bandwidth | 36 megahertz |
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).[3][4][5][6]