 | |
| Mission type | Communications Weather |
|---|---|
| Operator | INSAT |
| COSPAR ID | 2002-002A |
| SATCATno. | 27298 |
| Website | INSAT 3C |
| Spacecraft properties | |
| Bus | I-2K |
| Manufacturer | ISRO |
| Launch mass | 2,750 kg (6,060 lb) |
| Dry mass | 1,210 kg (2,670 lb) |
| Power | 2.765 kilowatts |
| Start of mission | |
| Launch date | 23 January 2002, 23:46:57 (2002-01-23UTC23:46:57Z) UTC |
| Rocket | Ariane-42L H10-3 |
| Launch site | KourouELA-3 |
| Contractor | Arianespace |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 74° East (0°N74°E / 0°N +74°E /0; +74) |
| Inclination | 4 degrees |
| Period | 24 hours |
INSAT-3C is a multipurposesatellite built byISRO and launched byArianespace in Jan 2002.[1] INSAT-3C is the second satellite of theINSAT-3 series. All the transponders provide coverage over India. Insat-3C is controlled from theMaster Control Facility atHassan inKarnataka. It will provide voice, video and digital data services to India and neighboring countries.
INSAT 3C was launched by theAriane 4 launch vehicle ofArianespace at 5:17 am IST fromKourou,French Guiana inSouth America. INSAT-3C was placed into a Geo-synchronous Transfer Orbit (GTO), 21 minutes after the lift-off, in a 3-axis stabilised mode, with a perigee of 570 km and an apogee of 35,920 km and an inclination of 4° with respect to the equator. After 4 maneuvers INSAT-3C has been put in its final three axis stabilised mode on February 1, 2002. The orbit rising maneuvers were carried out in phases by firing the 440 NewtonLiquid Apogee Motor(LAM). The satellite carried about 1.5 tonne of propellant (MMH (MonoMethylHydrazine) andMON-3 (Mixed Oxides of Nitrogen)) for orbit raising operations as well as for station keeping and in-orbit attitude control.INSAT-3C like all of its predecessors in theINSAT series has a 3-axis body stabilized spacecraft using momentum/reaction wheels Earth sensors,Sun sensors, inertial reference unit andmagnetic torquers. It is equipped with unified bi-propellant thrusters.[2]
INSAT-3C, carrying Fixed Satellite Services (FSS) transponders, Broadcast Satellite Services (BSS) transponders & Mobile Satellite Services (MSS) transponders is intended to continue the service of INSAT-2DT and INSAT-2C which were nearing their end to life besides enhancing and augmenting the INSAT system capacity.[3]
The satellite was designed for operations near 74 deg Longitude.[4][5]
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