Title:
Improving Lunar Return Entry Footprints Using Enhanced Skip Trajectory Guidance

dc.contributor.author Putnam, Zachary R.
dc.contributor.author Braun, Robert D.
dc.contributor.author Bairstow, S. H.
dc.contributor.author Barton, G. H.
dc.contributor.corporatename American Institute of Aeronautics and Astronautics
dc.date.accessioned 2007-05-31T21:55:49Z
dc.date.available 2007-05-31T21:55:49Z
dc.date.issued 2006-09
dc.description AIAA Space 2006 Conference September 2006, San Jose, CA. en_US
dc.description.abstract The impending development of NASA's Crew Exploration Vehicle (CEV) will require a new entry guidance algorithm that provides sufficient performance to meet all requirements. This study examined the effects on entry footprints of enhancing the skip trajectory entry guidance used in the Apollo program. The skip trajectory entry guidance was modified to include a numerical predictor-corrector phase during atmospheric skip portion of the entry trajectory. Four degree-of-freedom simulation was used to determine the footprint of the entry vehicle for the baseline Apollo entry guidance and predictor-corrector enhanced guidance with both high and low lofting at several lunar return entry conditions. The results show that the predictor-corrector guidance modification significantly improves the entry footprint of the CEV for the lunar return mission. The performance provided by the enhanced algorithm is likely to meet the entry range requirements for the CEV. en_US
dc.identifier.uri http://hdl.handle.net/1853/14695
dc.language.iso en_US en_US
dc.publisher Georgia Institute of Technology en_US
dc.publisher.original American Institute of Aeronautics and Astronautics (AIAA)
dc.relation.ispartofseries SSDL ; AIAA 2006-7438 en_US
dc.subject Crew Exploration Vehicle (CEV) en_US
dc.subject Earth entry systems en_US
dc.subject Entry trajectory en_US
dc.subject Footprints en_US
dc.subject Skip trajectory guidance en_US
dc.title Improving Lunar Return Entry Footprints Using Enhanced Skip Trajectory Guidance en_US
dc.type Text
dc.type.genre Paper
dspace.entity.type Publication
local.contributor.corporatename Space Systems Design Laboratory (SSDL)
local.contributor.corporatename Daniel Guggenheim School of Aerospace Engineering
local.contributor.corporatename Daniel Guggenheim School of Aerospace Engineering
relation.isOrgUnitOfPublication dc68da3d-4cfe-4508-a4b0-35ba8de923fb
relation.isOrgUnitOfPublication a348b767-ea7e-4789-af1f-1f1d5925fb65
relation.isOrgUnitOfPublication a348b767-ea7e-4789-af1f-1f1d5925fb65
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