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Global Positioning Svstem (GPS) on International Space Station (ISS) and Crew Return Vehicle (CRV)Both the International Space Station and Crew Return Vehicle desired to have GPS on their vehicles due to improve state determination over traditional ground tracking techniques used in the past for space vehicles. Both also opted to use GPS for attitude determination to save the expense of a star tracker. Both vehicles have stringent pointing requirements for roll, pitch, and heading, making a sun or earth sensor not a viable option since the heading is undetermined. This paper discusses the technical challenges associated with the implementation of GPS on both of these vehicles. ISS and CRY use the same GPS receiver, but have faced different challenges since the mission of each is di fferent. ISS will be discussed first, then CRY. The flight experiments flown on the Space Shuttle in support of these efforts is also discussed.
Document ID
20110011438
Document Type
Preprint (Draft being sent to journal)
Authors
Gomez, Susan F. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 25, 2013
Publication Date
June 1, 2002
Subject Category
Space Communications, Spacecraft Communications, Command and Tracking
Report/Patent Number
JSC-CN-7491
Funding Number(s)
CONTRACT_GRANT: 4-77-720N14B12V402CM
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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