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Development of a unified guidance system for geocentric transferA method is presented for open loop guidance of a solar electric propulsion spacecraft to geosynchronous orbit. The method consists of determining the thrust vector profiles on the ground with an optimization computer program, and performing updates based on the difference between the actual trajectory and that predicted with a precision simulation computer program. The motivation for performing the guidance analysis during the mission planning phase is discussed, and a spacecraft design option that employs attitude orientation constraints is presented. The improvements required in both the optimization program and simulation program are set forth, together with the efforts to integrate the programs into the ground support software for the guidance system.
Document ID
19750040884
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cake, J. E.
Regetz, J. D., Jr.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1975
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
AIAA PAPER 75-349
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Electric Propulsion Conference
Location: New Orleans, LA
Start Date: March 19, 1975
End Date: March 21, 1975
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
75A24956
Distribution Limits
Public
Copyright
Other

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