Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-12T16:51:49.549Z Has data issue: false hasContentIssue false
  • English
  • Français

The USNO Astrometric Interferometer

Published online by Cambridge University Press:  19 July 2016

Donald J. Hutter
Donald J. Hutter*
Affiliation:
United States Naval Observatory, USNO/NRL Optical Interferometer Project, AD5, 3450 Massachusetts Avenue, NW, Washington, DC 20392-5420

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

The U.S. Naval Observatory Astrometric Interferometer (USNOAI) will be the dedicated astrometric sub-array of the new Navy Prototype Optical Interferometer (NPOI) at Lowell Observatory, which is being built in collaboration with the Naval Research Laboratory. The USNOAI will be in operation on Anderson Mesa, near Flagstaff, Arizona, in late 1993. The instrument will incorporate four siderostats which will be located in a Y-shaped configuration, and will feature state-of-the-art delay lines, a real-time zeroth-order fringe tracking algorithm, a full-array laser metrology system to monitor baseline motion, and a limiting magnitude of 10. The instrument will be capable of simultaneous observations on six baselines, and will produce star positions accurate to a few mas. With it, we will be able to maintain the HIPPARCOS reference frame with matching accuracy over the next few decades.

References

Buchanan, K.: 1993, Real Time Control of a Long Baseline Optical Interferometer , in The Proceedings of IAU Symposium No. 158 Google Scholar
Elias, N.M., and Hutter, D.J.: 1993, The Baseline Metrology System of the USNO Astrometric Interferometer , in The Proceedings of IAU Symposium No. 158 CrossRefGoogle Scholar
Hummel, C.A.: 1993, Five Years of Stellar Position Measurements with the MkIII Optical Interferometer , in The Proceedings of IAU Symposium No. 158 Google Scholar
Mozurkewich, D.: 1993, Design and Construction of a Beam Combiner and Related Hardware , in The Proceedings of IAU Symposium No. 158 Google Scholar
Shao, M., Colavita, M.M., Hines, B.E., Staelin, D.H., Hutter, D.J., Johnston, K.J., Mozurkewich, D., Simon, R.S., Hershey, J.L., Hughes, J.A., and Kaplan, G.H.: 1988, Astron. Astrophys. 193, 357 Google Scholar
Shao, M., Colavita, M.M., Hines, B.E., Hershey, J.L., Hughes, J.A., Hutter, D.J., Kaplan, G.H., Johnston, K.J., Mozurkewich, D., Simon, R.S., and Pan, XP.: 1990, AJ 100, 1701 Google Scholar
Simon, R.S.: 1993, The Big Optical Array , in The Proceedings of IAU Symposium No. 158 Google Scholar
White, N.M.: 1993, Site Development of the Navy Prototype Optical Interferometer (NPOI) at the Lowell Observatory , in The Proceedings of IAU Symposium No. 158 Google Scholar