Computer Science – Performance
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981spie..265..219c&link_type=abstract
In: Shuttle pointing of electro-optical experiments; Proceedings of the Seminar, Los Angeles, Calif., February 10-13, 1981. (A81
Computer Science
Performance
Solid State Devices, Space Shuttle Payloads, Spaceborne Telescopes, Star Trackers, Calibrating, Charge Coupled Devices, Optical Equipment, Performance Prediction, Test Facilities
Scientific paper
In certain programs the line of sight of the main telescope assembly must be accurately controlled or at least determined. This is usually accomplished through the use of auxiliary star sensors or 'aspect sensors' which are aligned at some angle to the telescope's optical axis. The aspect sensor may or may not share the telescope optical system, depending upon the wavelength band within which the telescope operates. Attention is given to the optical system of the prototype star mapper, aspects sensor calibration, and performance predictions. The CCD detectors considered consist of arrays of photosensitive elements, or pixels, which accumulate light for a period of time known as the integration period. At the end of each integration period, the charge accumulated in each pixel is shifted laterally into shift registers to each side of the pixel array.
Cassidy L.
Kaplan Leah
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