An astrometric facility for planetary detection on the Space StationThe 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.
Document ID
19870063476
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nishioka, Kenji (NASA Ames Research Center Moffett Field, CA, United States)
Scargle, Jeffrey D. (NASA Ames Research Center Moffett Field, CA, United States)
Givens, John J. (NASA Ames Research Center Moffett Field, CA, United States)