PSLV-C1
Model of the PSLV rocket
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| Mission type | Deployment of one satellite. |
|---|---|
| Operator | ISRO |
| Website | ISRO website |
| Mission duration | 1090.52 seconds |
| Apogee | 826 kilometres (513 mi) |
| Spacecraft properties | |
| Spacecraft | Polar Satellite Launch Vehicle |
| Spacecraft type | Launch vehicle |
| Manufacturer | ISRO |
| Launch mass | 294,000 kilograms (648,000 lb) |
| Payload mass | 1,250 kilograms (2,760 lb) |
| Start of mission | |
| Launch date | 10:20:00, September 29, 1997 (IST) |
| Rocket | PSLV |
| Launch site | Sriharikota Launching Range |
| Contractor | ISRO |
| End of mission | |
| Disposal | Placed in graveyard orbit |
| Deactivated | 29 September 1997 |
| Orbital parameters | |
| Regime | Sun-synchronous Low Earth orbit |
| Inclination | 98.731° |
| Payload | |
| IRS-1D | |
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PSLV-C1 was the overall fourth mission of the PSLV program by Indian Space Research Organisation. The vehicle carried IRS-1D satellite which was deployed in the Sun-synchronous Low Earth orbit. This was India's first launch vehicle built without Russian assistance and PSLV's first operational flight placed IRS-1D into a polar orbit. However, it could not place the satellite in the desired circular orbit but in an elliptical orbit due to a leak of helium gas from one of the components. The mission was termed partial failure since the satellite could not be placed at the desired altitude.
PSLV-C1 was launched at 10:20 a.m. IST on 29 September 1997 from Satish Dhawan Space Centre (then called "Sriharikota Launching Range"). The vehicle placed the IRS-1D satellite in the sun-synchronous orbit.
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