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Home >> Launch Vehicles >> PSLV >> PSLV-C19
 
The Polar Satellite Launch Vehicle, in its 21st flight (PSLV-C19), launches India’s first Radar Imaging Satellite – RISAT-1 into a Polar Circular Orbit with an altitude of 480 km (+ 40.5 km) and orbital inclination of 97.552 (+ 0.2). RISAT-1 weighing 1858 kg is the heaviest satellite being launched by PSLV.

This is the third flight of the high end version (PSLV-XL) with six extended strap-on motors, each carrying 12 tonnes of solid propellant. (The two earlier flights of PSLV-XL were used to launch Chandrayaan-1 and GSAT-12 Communication Satellite)

PSLV- C19 Stages at a Glance
  STAGE-1 STAGE-2 STAGE-3 STAGE-4
Nomenclature Core Stage (PS1) + 6 Strap-on Motors PS2 PS3 PS4
Propellant Solid
(HTPB Based)
Liquid
(UH25 + N2O4)
Solid
(HTPB Based)
Liquid
(MMH + MON-3)
Mass (Tonne) 138.0 (Core), 6 x 12.0 (Strap-on) 41.7 7.6 2.5
Max Thrust (kN) 4819 (Core),
6 x 716 (Strap-on)
804 240 7.3 X 2
Burn Time (sec) 101.5 (Core),
49.5 (Strap-on)
149 112.1 523
Stage Dia (m)
2.8 (Core),
1.0 (Strap-on)
2.8 2.0 2.8
Stage Length  (m) 20 (Core)
14.7 (Strap-on)
12.8 3.6 2.6
  • HTPB : Hydroxy Terminated Poly Butadine
  • UH 25 : Unsymmetrical di-methyl hydrazine & Hydrazine hydrate
  • MMH : Mono Methyl Hydrazine
  • MON : Mixed Oxides of Nitrogen

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