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Proceedings Paper

Orbiting stellar interferometer
Author(s): Michael Shao; Donna M. Wolff
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Paper Abstract

The Orbiting Stellar Interferometer (OSI) is a concept for a first-generation space interferometer with astrometric and imaging capabilities and its responsive to the recommendations of the Astronomy and Astrophysics Survey Committee for an astrometric interferometry mission. OSI is a triple Michelson interferometer with articulating siderostats and optical delay lines. The design uses a 7 m maximum baseline and aperture diameters of 33 cm; the targeted astrometric performance is a wide-field accuracy of 5 (mu) as for 20-mag objects. The instrument would also be capable of synthesis imaging with a resolution of 10 mas. Laser metrology is used to relax structural requirements thereby reducing cost. The currently envisaged flight system fits into an Atlas II shroud, for insertion into a 900 km sun- synchronous orbit.

Paper Details

Date Published: 26 June 1995
PDF: 12 pages
Proc. SPIE 2477, Spaceborne Interferometry II, (26 June 1995); doi: 10.1117/12.212995
Show Author Affiliations
Michael Shao, Jet Propulsion Lab. (United States)
Donna M. Wolff, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 2477:
Spaceborne Interferometry II
Robert D. Reasenberg, Editor(s)

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