Delta II • ICESat-2

Second mission of Delta II rocket in 2017 after planned launch of JPSS-1 satellite on March. ICESat-2 will measure thickness of ice sheets from LEO orbit using laser altimeter.  Made for NASA by Orbital Sciences Corporation will spent on orbit 3 years performing number of maneuvers using its four 22 N and eighth 4.5 N thrusters burning hydrazine. Designated orbit of ICESat-2 is 481 km x 481 km with inclination of 94°. Delta II rocket in  this mission will be utilized in 7920 configuration. Rocket is supported by nine GEM-40 boosters (each providing 492.2 kN of thrust). First stage is powered by RS-27A engine (thrust at 1054 kN) and second stage propulsion is AJ-10 engine with thrust at 43.6 kN. Boosters are fueled with HTPB, first stage by RP1/LOX and second stage with Dinitrogen tetroxide/Aerozine. Rocket is long for 40 m, mass fits in the range 150000 kg -230000 kg. Maximal payload for LEO is 6100 kg in heavy variant.

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