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space shuttle star tracker challengesThe space shuttle fleet of avionics was originally designed in the 1970's. Many of the subsystems have been upgraded and replaced, however some original hardware continues to fly. Not only fly, but has proven to be the best design available to perform its designated task. The shuttle star tracker system is currently flying as a mixture of old and new designs, each with a unique purpose to fill for the mission. Orbiter missions have tackled many varied missions in space over the years. As the orbiters began flying to the International Space Station (ISS), new challenges were discovered and overcome as new trusses and modules were added. For the star tracker subsystem, the growing ISS posed an unusual problem, bright light. With two star trackers on board, the 1970's vintage image dissector tube (IDT) star trackers track the ISS, while the new solid state design is used for dim star tracking. This presentation focuses on the challenges and solutions used to ensure star trackers can complete the shuttle missions successfully. Topics include KSC team and industry partner methods used to correct pressurized case failures and track system performance.
Document ID
20110003998
Document Type
Presentation
Authors
Herrera, Linda M.
(Boeing Co. Cocoa Beach, FL, United States)
Date Acquired
August 29, 2013
Publication Date
May 13, 2010
Subject Category
Spacecraft Design, Testing and Performance
Report/Patent Number
KSC-2010-068
Meeting Information
13th Joint FAA/DoD/NASA Aircraft Airworthiness and Sustainment Conference(Austin, TX)
Funding Number(s)
CONTRACT_GRANT: 6000132079
Distribution Limits
Public
Copyright
Public Use Permitted.

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