Computer Science – Performance
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983asaer..21...66z&link_type=abstract
Astronautics and Aeronautics (ISSN 0004-6213), vol. 21, July-Aug. 1983, p. 66-69.
Computer Science
Performance
Satellite-Borne Instruments, Solar Instruments, Solar Spectra, Systems Engineering, Telescopes, Astronomical Photography, Chromosphere, Solar Temperature, Space Shuttle Payloads, Stellar Spectrophotometry, Ultraviolet Spectra, Visible Spectrum
Scientific paper
Design and performance features of the solar optical telescope (SOT) scheduled for Shuttle launch in 1989-90 are described. the SOT will be a 1.3 m device, capable of revealing surface features 70 km in diameter and making observations in the UV to reveal phenomena in the chromosphere. A final focal ratio of f/25 will result in an image that is 20 times hotter than the actual solar radiation. The SOT design includes active alignment, focus, and pointing systems to initiate adjustments in the primary and secondary mirrors by means of return signals from diodes and retroreflectors. The Shuttle will carry the instrument into orbit several times over an 18 mo period. Approximately 50,000 photographs will be taken of the sun during a 7-day mission, and filter graph spectrography will also be performed.
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