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Dynamic and control assessment of the Space Station Freedom payload pointing systemAn analysis of the proposed Space Station Freedom Payload Pointing System (PPS) was performed to assess its dynamic payload pointing capability in the dynamic environment of the Space Station Freedom (SSF). In addition, the stability and control the the SSF was examined to verify the capability of its control devices to accommodate the impact of PPS operations. An analysis of the PPS ability to provide continuous, accurate pointing was performed and compared to the program requirements specified in the 1988 Program Definition and Requirement Document (PDRD). Results indicated that the PPS was not able to perform within the program requirements during the worst case scenario of a shuttle hard docking maneuver to the port side SSF docking adapter. The PPS maintained marginal pointing accuracy during crew treadmill activity. The Space Station attitude control system easily accommodated all PPS operations simulated. The PPS caused a negligible impact on the SSF's control environment.
Document ID
19910011912
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Shannon, David T., Jr. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1991
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
NAS 1.15:101667
NASA-TM-101667
Accession Number
91N21225
Funding Number(s)
PROJECT: RTOP 476-14-06-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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