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Temperature dependence of attitude sensor coalignments on the Solar Maximum Mission (SMM)The temperature correlation of the relative coalignment between the fine-pointing sun sensor and fixed-head star trackers measured on the Solar Maximum Mission (SMM) is analyzed. An overview of the SMM, including mission history and configuration, is given. Possible causes of the misalignment variation are discussed, with focus placed on spacecraft bending due to solar-radiation pressure, electronic or mechanical changes in the sensors, uncertainty in the attitude solutions, and mounting-plate expansion and contraction due to thermal effects. Yaw misalignment variation from the temperature profile is assessed, and suggestions for spacecraft operations are presented, involving methods to incorporate flight measurements of the temperature-versus-alignment function and its variance in operational procedures and the spacecraft structure temperatures in the attitude telemetry record.
Document ID
19900059713
Document Type
Conference Paper
Authors
Pitone, D. S. (Computer Sciences Corp. Falls Church, VA, United States)
Eudell, A. H. (Computer Sciences Corp. Falls Church, VA, United States)
Patt, F. S. (General Sciences Corp. Falls Church, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
AAS PAPER 89-391
Meeting Information
AAS/AIAA Astrodynamics Conference 1989(Stowe, VT)
Funding Number(s)
CONTRACT_GRANT: NAS5-31500
Distribution Limits
Public
Copyright
Other