Astrometry with the Space Interferometry Mission

Details Astrometry with the Space Interferometry Mission Astrometry with the Space Interferometry Mission

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.1909b&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #19.09; Bulletin of the American Astronomical Society, Vol. 28, p.1300

Computer Science

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2

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In this paper we will discuss the prospects for astrometric measurements with the Space Interferometry Mission (SIM). SIM performs precise astrometric measurements on point-like objects as dim as 20th magnitude using optical interferometric techniques with a 10 m baseline. SIM performs both narrow-angle astrometry, and global astrometry by means of an astrometric grid. Sensitivities of SIM astrometric performance and grid accuracy vs. instrumental parameters and sky coverage schemes will be presented. The problems in finding suitable astrometric grid objects, and ground-based observing programs that address these problems will be discussed.

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