human spaceflight & operations European Lunar Lander: System Engineering Approach SECESA, 17 Oct. 2012 ESA Lunar Lander Office
European Lunar Lander Mission Objectives: Preparing for Future Exploration PRIMARY TECHNOLOGICAL OBJECTIVE Implement & prove key European technologies for future robotic and human lander missions PRECISE LANDING with advanced Guidance, Navigation and Control SAFE LANDING with Hazard Detection and Avoidance SURFACE MISSION OBJECTIVE Operate & survive on the Moon gathering data for preparing future human exploration SAFETY Boulders Slopes Shadows NASA (LRO-NAC) INVESTIGATE the Lunar environment & its effects, and potential resources OPERATE on the Lunar surface, carry out sampling, support autonomous survival 2 2
Recommended Mission Mission Definition Trade Space Scenario for Phase B1 Soyuz RHU No-RHU Low Latitude Polar Low Latitude Polar Constraints: European launcher Cost compatible with precursor-type mission Timeframe not later than 2018 European technologies Landing Site Launcher Ariane 5 Shared RHU Low Latitude Polar Low Latitude Thermal Control No-RHU Polar 3
Mission Recommended Implementation Mission Trade Scenario Space for Phase B1 Soyuz NO Orbiter HEO single stage GTO single stage Constraints: European launcher Cost compatible with precursor-type mission Timeframe not later than 2018 Technology: European-made GTO dual stage Rover Launcher Ariane 5 Shared NO Orbiter WSB transfer Dual stage Rover (100 kg class) Mission Elements Injection Orbit 4
Industrial/ESA CDF Phase A Mission Studies SOYUZ SHARED ARIANE-5 Single Stage / No Rover Dual Stage / With Rover OPTION BASELINE Dual Stage with Service Module / Rover Light (???) Reviewed by ESTEC 5
Selected Phase B1 Mission Architecture & Spacecraft Configuration 66
Phase B1 Project Framework Science & Payload Definition L-DAP L-DEPP L-VRAP Mission & Spacecraft Phase B1 Soyuz Launcher Landing Site Characterisation 7
Science-driven Mission Design Philosophy How to design a science mission (highly idealised, iterative process not represented, to be used with caution): Science question Science objectives Science requirements Experiment requirements Mission requirements Payload definition Spacecraft/ lander/ rover design 8
Exploration-driven Mission Design Philosophy How to design a technology mission with exploration enabling science (highly idealised, iterative process not represented, to be used with caution): Technical capability sought Technology development objectives Technology demonstration requirements Technology demonstration requirements Mission requirements Technology definition Spacecraft/ lander/ rover design Payload definition 9
Landing Platform Outcomes Priority: precision landing and hazard avoidance Two examples of where this determines the lander solution Propulsion type Instrumentation for landing Top-down approach for the mission mass budget, with effect on mass available for surface payload Integrated payload and platform to maximize use of resources (no plug-in possible for surface operations) 10
European Lunar Lander Mission Video
European Lunar Lander Key Technologies Guidance, Navigation & Control Optical Absolute Navigation: Landmark identification Relative Visual Navigation: Low-level illumination Hazard Detection and Avoidance Passive (camera) and active (Lidar) terrain navigation sensors High performance avionics Propulsion Pulsed mode thrust modulation Engine clustering & thermal interaction Landing legs Thermal control/survival Low temperature compatibility: batteries, electronics Loop heat pipes Power subsystem for flight and surface operations Robotic arm Autonomous Navigation Systems G-N-C SW & Avionics Verification & Validation 12
System & Technology Concurrent Engineering HW & SW Mission & System Pre-development Phase B 13
vanced Landing hnologies Conclusions Exploration Preparation Advanced Surface Capabilities Exciting Science 14 http://www.esa.int/specials/lunarlander