Orion Powered Flight Guidance Burn Options for Near Term Exploration

Fill, Tom ; Goodman, John ; Robinson, Shane

关键词: EXPLORATION MISSION-1;    AUTONOMY;    UNMANNED SPACECRAFT;    SPACECRAFT CONTROL;    FLIGHT CONTROL;    ALGORITHMS;    FIRING (IGNITING);    CISLUNAR SPACE;    MODULARITY;    FEEDBACK CONTROL;    MISSION PLANNING;    RETROGRADE ORBITS;    LESSONS LEARNED;   

RP-ID  :  JSC-E-DAA-TN50474-2

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

NASA's Orion exploration spacecraft will fly more demanding mission profiles than previous NASA human flight spacecraft. Missions currently under development are destined for cislunar space. The EM-1 mission will fly unmanned to a Distant Retrograde Orbit (DRO) around the Moon. EM-2 will fly astronauts on a mission to the lunar vicinity. To fly these missions, Orion requires powered flight guidance that is more sophisticated than the orbital guidance flown on Apollo and the Space Shuttle. Orion's powered flight guidance software contains five burn guidance options. These five options are integrated into an architecture based on a proven shuttle heritage design, with a simple closed-loop guidance strategy. The architecture provides modularity, simplicity, versatility, and adaptability to future, yet-to-be-defined, exploration mission profiles. This paper provides a summary of the executive guidance architecture and details the five burn options to support both the nominal and abort profiles for the EM-1 and EM-2 missions.