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Proceedings Paper

Systematic errors in high-precision optical interferometric astrometry
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Paper Abstract

This paper lists several of the systematic error sources which we have identified in our studies of POINTS, concentrating on those which are expected to affect other spaceborne astrometric interferometers as well. Many of them also are expected to affect ground-based optical interferometers. Among the errors is a newly discovered systematic contribution which only occurs in the simultaneous presence of diffraction, aberration, spectrometer dispersion, and two-beam (Michelson) interference. This error can be as large as several nanometers of optical path difference, and thus may constitute an important source of systematic uncertainty in ground-based astrometric measurements as well.

Paper Details

Date Published: 26 June 1995
PDF: 21 pages
Proc. SPIE 2477, Spaceborne Interferometry II, (26 June 1995); doi: 10.1117/12.212992
Show Author Affiliations
Martin Charles Noecker, Smithsonian Astrophysical Observatory (United States)


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

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