PSLV-C18/Megha-Tropiques Home / Activities / Missions accomplished


Oct 12, 2011

Polar Satellite Launch Vehicle, in its twentieth flight (PSLV-C18) launches Megha-Tropiques satellite along with three auxiliary payloads with a total payload mass of 1047 kg from the first launch pad of Satish Dhawan Space Centre (SDSC SHAR).

PSLV-C18 is the seventh flight of PSLV in 'core-alone' configuration i.e, without solid strap-on motors.

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PSLV- C18 Stages at a Glance
STAGE-1 STAGE-2 STAGE-3 STAGE-4
Nomenclature PS1 PS2 PS3 PS4
Propellant Solid (HTPB Based) Liquid (UH25 + N2O4) Solid (HTPB Based) Liquid (MMH + MON-3)
Mass (Tonne) 138.0 41.7 7.6 0.8
Max Thrust(kN) 4800 799 247 7.3 X 2
Burn Time(sec) 100 148 108 163
Stage Dia(m) 2.8 2.8 2.0 2.8
Stage Length(m) 20 12.8 3.6 2.0
Control Secondary Injection Thrust Vector Control for Pitch & Yaw plane

Reaction control Thrusters for Roll Control 		Engine Gimbal for Pitch & Yaw plane

Hot Gas Reaction Control System (RCS) for Roll Control 		Flex Nozzle for Pitch & Yaw plane

PS4 RCS for Roll Control 		Engine Gimbal for Pitch & Yaw plane

RCS for Coast Phase Control

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