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Orbiting Stellar Interferometer: An Overview

Show simple item record Wolff, Donna M. en_US 2004-10-01T17:35:08Z 2004-10-01T17:35:08Z 1995-01-09 en_US
dc.identifier.citation AIAA, Aerospace Sciences Meeting en_US
dc.identifier.citation Reno, Nevada en_US
dc.identifier.clearanceno 95-0046 en_US
dc.description.abstract The Orbiting Stellar Interferometer (OSI) is a concept for a first-generation space interferometer with astrometric and imaging capabilities and is 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 7m maximum baseline and aperture diameters of 33 cm; the targeted astrometric performance is a wide-field accuracy of 5µas for 20-mag objects. The instrument would also be capable of synthesis imaging with a resolution of 10mas. 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. en_US
dc.format.extent 347065 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject.other OSI (Orbiting Stellar Interferometer) en_US
dc.subject.other Interferometer Design en_US
dc.title Orbiting Stellar Interferometer: An Overview en_US

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