Global Performance Characterization of the Three Burn Trans-Earth Injection Maneuver Sequence over the Lunar Nodal CycleThe Orion spacecraft will be required to perform a three-burn trans-Earth injection (TEI) maneuver sequence to return to Earth from low lunar orbit. The origin of this approach lies in the Constellation Program requirements for access to any lunar landing site location combined with anytime lunar departure. This paper documents the development of optimized databases used to rapidly model the performance requirements of the TEI three-burn sequence for an extremely large number of mission cases. It also discusses performance results for lunar departures covering a complete 18.6 year lunar nodal cycle as well as general characteristics of the optimized three-burn TEI sequence.
Document ID
20090029222
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Williams, Jacob (Engineering and Science Contract Group Houston, TX, United States)
Davis, Elizabeth C. (Engineering and Science Contract Group Houston, TX, United States)
Lee, David E. (NASA Johnson Space Center Houston, TX, United States)
Condon, Gerald L. (NASA Johnson Space Center Houston, TX, United States)
Dawn, Tim (NASA Johnson Space Center Houston, TX, United States)