PSLV-C22

Polar Satellite Launch Vehicle, in its twenty fourth flight (PSLV-C22), will launch India’s first dedicated navigational satellite IRNSS-1A. The launch will take place from the First Launch Pad (FLP) of Satish Dhawan Space Centre, (SDSC) SHAR, Sriharikota. PSLV-C22 will use ‘XL’ version of PSLV. This is the fourth time such a configuration is being flown, earlier three being PSLV-C11/ Chandrayaan-1, PSLV-C17/ GSAT-12 and PSLV-C 19/ RISAT-1 missions. PSLV- C22 Stages at a Glance STAGE-1 STAGE-2 STAGE-3 STAGE-4 Nomenclature Core 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), 6X12(Strap-on) 41.7 7.6 2.5 Max Thrust (kN) 4819 (Core), 6X716(Strap-on) 804 240 7.3 X 2 Burn Time (sec) 101.5 (Core), 49.5(Strap-on) 149 112.1 513 Stage Dia (m) 2.8 (Core), 1(Strap-on) 2.8 2.0 2.8 Stage Length  (m) 20 (Core), 14.7(Strap-on) 12.5 3.6 2.6 HTPB : Hydroxyl Terminated Poly Butadine UH 25 : Unsymmetrical di-methyl hydrazine + 25% Hydrazine Hydrate N2O4 : Nitrogen Tetroxide MMH : Mono Methyl Hydrazine MON-3 : Mixed Oxides of Nitrogen