A review is conducted on unmanned lunar landing modules lifted off by H-2 launch vehicles to accomplish various missions on the lunar surface as the lead to manned lunar exploration. Results of mission trade-offs are presented, based on the assumption of conducting at least each one mission with and without roving vehicles, and one sample return mission, if possible. Detailed mission trade-offs for environment, geology, underground structure, and ground characteristic survey missions are presented, and an unmanned lunar landing module mission structure is exemplified. Operation plans up to arrival at the moon and after the arrival are introduced. Results of system reviews on operation plans, system structures, system function distributions, and subsystem reviews on propulsion, structures, thermal control, electric power, navigation, and guidance subsystems are presented. Reviews on configurations and development plans are also presented.
H-2 Ni Yoru Mujin Getsumen Chakuriku Ki No Kentou (Review on Unmanned Lunar Landing Modules Lifted off by H-2 Launch Vehicles)
1991
19 pages
Report
No indication
English
Extraterrestrial Exploration , Astronautics , Lunar exploration , Lunar landing modules , Mission planning , Spacecraft equipment , Japanese spacecraft , Launch vehicles , Lunar probes , Lunar roving vehicles , Functional design specifications , Geological surveys , Lunar environment , Lunar landing , Spacecraft configurations , Spacecraft design , Tradeoffs , Foreign technology