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Why Atens Enjoy Enhanced Accessibility for Human Space FlightNear-Earth objects can be grouped into multiple orbit classifications, among them being the Aten group, whose members have orbits crossing Earth's with semi-major axes less than 1 astronomical unit. Atens comprise well under 10% of known near-Earth objects. This is in dramatic contrast to results from recent human space flight near-Earth object accessibility studies, where the most favorable known destinations are typically almost 50% Atens. Geocentric dynamics explain this enhanced Aten accessibility and lead to an understanding of where the most accessible near-Earth objects reside. Without a comprehensive space-based survey, however, highly accessible Atens will remain largely unknown.
Document ID
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Barbee, Brent W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Adamo, Daniel R.
(Adamo (Daniel R.) Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
July 31, 2011
Subject Category
Report/Patent Number
Meeting Information
Meeting: AAS/AIAA Astrodynamics Specialist Conference
Location: Girdwood, AK
Country: United States
Start Date: July 31, 2011
End Date: August 4, 2011
Sponsors: American Inst. of Aeronautics and Astronautics, American Astronautical Society
Distribution Limits
Public Use Permitted.
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