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LANDSAT-D MSS/TM tuned orbital jitter analysis model LDS900The final LANDSAT-D orbital dynamic math model (LSD900), comprised of all test validated substructures, was used to evaluate the jitter response of the MSS/TM experiments. A dynamic forced response analysis was performed at both the MSS and TM locations on all structural modes considered (thru 200 Hz). The analysis determined the roll angular response of the MSS/TM experiments to improve excitation generated by component operation. Cross axis and cross experiment responses were also calculated. The excitations were analytically represented by seven and nine term Fourier series approximations, for the MSS and TM experiment respectively, which enabled linear harmonic solution techniques to be applied to response calculations. Single worst case jitter was estimated by variations of the eigenvalue spectrum of model LSD 900. The probability of any worst case mode occurrence was investigated.
Document ID
19830017877
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Pollak, T. E. (General Electric Co. Philadelphia, PA, United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1981
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
E83-10281
NAS 1.26:170546
NASA-CR-170546
DOC-81SDS4226
Accession Number
83N26148
Funding Number(s)
CONTRACT_GRANT: NAS5-25300
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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