Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ooas.symp.....n&link_type=abstract
International Symposium on Optical and Optoelectronic Applied Science Engineering, 4th, The Hague, Netherlands, Mar. 28-Apr. 3,
Astronomy and Astrophysics
Astronomy
Astrometry, Functional Design Specifications, Space Stations, Spaceborne Telescopes, Extrasolar Planets, Ground Based Control, Space Shuttle Payloads, Stellar Motions
Scientific paper
The preliminary system definition study for an Astrometric Telescope Facility (ATF) designed for the Space Station IOC is discussed, and a strawman system is designed which is found to meet the requirements for extrasolar planetary systems search and study. The strawman facility design, with a prime-focus 1.25-m aperture telescope and an f ratio of 13, was selected to minimize random and systematic errors. A basic operations approach is identified, including the approach to launch, initial on-orbit assembly and checkout, normal operations, and the response to anomolous conditions or failures. The preliminary system is designed to be fail-safe and single-fault tolerant. Mission analysis indicates that the basic viewing required for planetary detection can be accomplished in about 2/3 of the total viewing time.
Givens John J.
Nishioka Kenji
Scargle Jeffrey D.
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