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On-board attitude determination for the Explorer Platform satelliteThis paper describes the attitude determination algorithm for the Explorer Platform satellite. The algorithm, which is baselined on the Landsat code, is a six-element linear quadratic state estimation processor, in the form of a Kalman filter augmented by an adaptive filter process. Improvements to the original Landsat algorithm were required to meet mission pointing requirements. These consisted of a more efficient sensor processing algorithm and the addition of an adaptive filter which acts as a check on the Kalman filter during satellite slew maneuvers. A 1750A processor will be flown on board the satellite for the first time as a coprocessor (COP) in addition to the NASA Standard Spacecraft Computer. The attitude determination algorithm, which will be resident in the COP's memory, will make full use of its improved processing capabilities to meet mission requirements. Additional benefits were gained by writing the attitude determination code in Ada.
Document ID
19920060673
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jayaraman, C.
(NASA Headquarters Washington, DC United States)
Class, B.
(Fairchild Space and Defense Corp. Germantown, MD, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AAS PAPER 91-484
Meeting Information
Meeting: AAS/AIAA Astrodynamics Conference
Location: Durango, CO
Country: United States
Start Date: August 19, 1991
End Date: August 22, 1991
Accession Number
92A43297
Distribution Limits
Public
Copyright
Other

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