In-orbit measurements of Landsat-4 Thematic Mapper dynamic disturbancesThis paper describes Landsat-4 sensors, spacecraft disturbances, and the methodology used to correct Thematic Mapper (TM) images. The discussion includes system requirements, mathematical modeling, in-orbit angular motion measurement, Fast Fourier Transformer (FFT) data analysis, and scan system correction. Emphasis is given to the cause and effect of the electromechanical disturbances beginning with the scan mirror and its interaction and sensitivity to externally and self-generated disturbances. Ground-testing results are compared with those obtained in orbit.
Document ID
19850030916
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sudey, J., Jr. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schulman, J. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)