PSLV-C1

PSLV-C1

Model of the PSLV rocket
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
Polar Satellite Launch Vehicle missions ← PSLV-D3 PSLV-C2 →

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.^[1][2][3][4] 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.^[5][6]

Mission parameters

• Mass:
  • Total liftoff weight: 294,000 kilograms (648,000 lb)
  • Payload weight: 1,250 kilograms (2,760 lb)
• Overall height: 44.4 metres (145.7 ft)
• Propellant:
  • Stage 1:Solid HTPB based
  • Stage 2:Liquid UH 25 + N2O4
  • Stage 3:Solid HTPB based
  • Stage 4:Liquid MMH + MON-3
• Altitude: 826 kilometres (513 mi)
• Maximum velocity:7,436 metres per second (24,396 ft/s) (recorded at time of fourth stage cut-off)
• Inclination: 98.731°
• Period: 1090.52 seconds

^[2]

Launch

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.^{[1][2][3][4][5]}

See also

• Indian Space Research Organisation
• Polar Satellite Launch Vehicle

References

1. "PSLV-C1". Indian Space Research Organisation website. Retrieved 24 Jun 2016.
2. "PSLV-C1 brochure" (PDF). Indian Space Research Organisation website. Retrieved 24 Jun 2016.
3. "PSLV". spacelaunchreport.com. Retrieved 24 Jun 2016.
4. "ISRO Timeline". Indian Space Research Organisation website. Retrieved 24 Jun 2016.
5. "Space". digitaltoday.in. Retrieved 24 Jun 2016.
6. "PSLV fail". spacelaunchreport.com. Retrieved 24 Jun 2016.