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Use of libration-point orbits for space observatoriesThe sun-earth libration points, L1 and L2, are located 1.5 million kilometers from the earth toward and away from the sun. Halo orbits about these points have significant advantages for space observatories in terms of viewing geometry, thermal and radiation environment, and delta-V expediture.
Document ID
19930039435
Document Type
Conference Proceedings
Authors
Farquhar, Robert W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dunham, David W. (Computer Sciences Corp. Lanham, MD, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1990
Publication Information
Publication: In: Observatories in earth orbit and beyond (A93-23401 07-89)
Subject Category
ASTRODYNAMICS
Funding Number(s)
CONTRACT_GRANT: NAS5-31500
Distribution Limits
Public
Copyright
Other