Orion's Powered Flight Guidance Burn Options for Near Term Exploration MissionsNASA'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.
Document ID
20180001863
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Fill, Thomas (Draper (Charles Stark) Lab., Inc. Cambridge, MA, United States)
Goodman, John (Odyssey Space Research, LLC Houston, TX, United States)
Robinson, Shane (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
March 9, 2018
Publication Date
February 2, 2018
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AAS 18-084JSC-E-DAA-TN50474-1
Meeting Information
Meeting: Annual AAS Guidance and Control Conference