Saturday, April 21, 2007

PSLV

Polar Satellite Launch Vehicle

Developmental flights completed with successful third developmental launch in March 1996.
IRS-1D launched by PSLV-C1 on September 29, 1997.
Now available for launching 1,000-1,200 kg class of remote sensing satellites into polar sun-synchronous orbit.
IRS-P4 (OCEANSAT) and two piggy back small satellites - Korean KITSAT and German TUBSAT launched by PSLV-C2 on May 26,1999.

Technology Experiment Satellite (TES) of ISRO, BIRD of Germany and PROBA of Belgium - into their intended orbits launched by PSLV-C3 on October 22, 2001.
The 1060 kg KALPANA-1 satellite - into a Geosynchronous Transfer Orbit (GTO) launched by PSLV-C4 on September 12, 2002.
RESOURCESAT-1 (IRS-P6) satellite launched by PSLV-C5 on October 17, 2003.
CARTOSAT-1 and HAMSAT satellites launched by PSLV-C6 on May 5, 2005.

Weight (t) : 294
Payload (kg) : 1000-1200
Height(m) : 44.43
Orbit : Polar orbit Stage-1 Stage-2 Stage-3 Stage-4
Nomenclature Core PSI + Strap-on PSOM 6Nos. PS2 PS3 PS4
Propellant Solid HTPB Based Liquid UDMH+ N2O4 Solid HTPB Based Bi-Prop MMH + N2O4
Propellant Mass (tonnes) 138.0 + 6X9.0 40.6 7.2 2.0
Stage Mass (tonnes) 229 46 8.4 2.89
Max Thrust (kN) 4628 + 662 x 6 725 340 7.4 x 2
Burn time (sec) 107.4
45 163 76 415
Stage Dia(m) 2.8
1.0 2.8 2.0 1.3
Stage Length(m) 20
10 12.5 3.6 2.1
Control SITVC for Pitch & Yaw, Reaction control Thrusters for roll. SITVC in 2 PSOMs for roll control augmentation Engine Gimbal for Pitch & Yaw, Hot Gas Reaction Control Motor for roll control Flex Nozzle for Pitch & Yaw, PS4 RCS for roll control Engine Gimbal for Pitch, Yaw and roll On -off RCS for coast phase control

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