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SAMSI: An orbiting spatial interferometer for micro-arc second astronomical observationsThe concept and performance of (SAMSI) Spacecraft Array for Michelson Spatial Interferometry, an orbiting spatial interferometer comprised of three free-flying spacecraft, two collector telescopes and a central mixing station are described. In the one-dimensional interferometry mode orbits exist which provide natural scanning of the baseline. These orbits place extremely small demands on thrusters and fuel consumption. Resolution of 0.00001 arcsecond and magnitude limits of mv = 15 to 20 are achievable in a single orbit. In the imaging mode, SAMSI could synthesize images equivalent to those produced by equal diameter filled apertures in space, making use of the fuel resupply capability of a space station. Simulations indicate that image reconstruction can be performed with milliarcsecond resolution to a visual magnitude 12 in 12 hr of spiral scanning integration time.
Document ID
19860001636
Document Type
Conference Paper
Authors
Stachnik, R. V. (Harvard Smithsonian Center for Astrophysics Cambridge, Mass., United States)
Gezari, D. Y. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: ESA Colloq. on Kilometric Opt. Arrays in Space
Subject Category
ASTRONOMY
Funding Number(s)
CONTRACT_GRANT: NSG-7176
CONTRACT_GRANT: NASW-3755
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.