Trajectory design and navigation analysis for Cargo Transfer Vehicle proximity operationsThe paper documents an investigation of alternative (or off-nominal) final approach trajectories and terminal guidance algorithms for Cargo Transfer Vehicle (CTV) automated rendezvous and proximity operation in the vicinity of Space Station Freedom (SSF). Ten candidate trajectory designs, representing a survey of all approaches that reasonably satisfy the mission constraints, are compared qualitatively and quantitatively. It is shown that several fundamentally different types of approach strategies are feasible in the CTV application and enjoy more favorable passive collision avoidance and plume impingement properties than the nominal. They are, however, generally more costly in propellant. The extent to which an alternative approach is more costly is determined largely by the abort (or specifically the 'hold' or 'wave-off') requirements. These approach techniques are verified in a software simulation using a parametrically defined candidate navigation system, and proximity sensor accuracy requirements are derived.
Document ID
19920069442
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Marsh, S. M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
White, B. D. (Lockheed Missiles and Space Co., Inc. Sunnyvale, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking