24 September 1999 Spatial calibration of the EO-1 Advanced Land Imager
Author Affiliations +
Spatial calibrations have been performed on the Advanced Land Imager (ALI) of the EO-1 satellite. Topics discussed in this paper include end-to-end imaging test, measurements of system modulation transfer function (MTF), and pixel lines of sight. The MTF measurements were made by recording scans of a knife-edge past the pixels. The techniques used to place the focal plane at the correct focal position are described, since they make use of MTF measurements. Line-of- sight measurements combine theodolite measurements of the telescope distortions and the photolithographic patterns of the detector arrays with images of a stationary Ronchi ruling recorded with the instrument at its normal operating conditions in a thermal vacuum chamber.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David R. Hearn, David R. Hearn, Jeffrey A. Mendenhall, Jeffrey A. Mendenhall, Berton C. Willard, Berton C. Willard, } "Spatial calibration of the EO-1 Advanced Land Imager", Proc. SPIE 3750, Earth Observing Systems IV, (24 September 1999); doi: 10.1117/12.363503; https://doi.org/10.1117/12.363503

Back to Top