Computer Science – Performance
Scientific paper
Feb 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976stin...7617182b&link_type=abstract
Unknown
Computer Science
Performance
Planetary Orbits, Space Tugs, Trajectory Optimization, Payloads, Reusable Spacecraft, Space Rendezvous, Space Shuttles, Three Dimensional Motion
Scientific paper
Equations are derived by using the maximum principle to maximize the payload of a reusable tug for planetary missions. The analysis includes a correction for precession of the space shuttle orbit. The tug returns to this precessed orbit (within a specified time) and makes the required nodal correction. A sample case is analyzed that represents an inner planet mission as specified by a fixed declination and right ascension of the outgoing asymptote and the mission energy. The reusable stage performance corresponds to that of a typical cryogenic tug. Effects of space shuttle orbital inclination, several trajectory parameters, and tug thrust on payload are also investigated.
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