9 June 1994 A thousand and one nights of seeing on Mt. Wilson
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The Mark III optical interferometer has been in routine operation on Mt. Wilson, near Los Angeles CA, since 1988. Because it employs active fringe-tracking, seeing measurements are a natural byproduct of any astronomical observation. An automated seeing analysis program has allowed us to extract measurements of the coherence time, t(omicron ), and the high-frequency spectral index of the power spectrum of fringe motion for all clear nights in the observing seasons 1989-1991. This provides a unique database of the seeing; very few other measurements of the temporal properties of astronomical seeing exist, and none with such a representative sampling of nights. We examine various statistical properties of the seeing and infer quantities of interest to the design of future interferometers.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David F. Buscher, David F. Buscher, } "A thousand and one nights of seeing on Mt. Wilson", Proc. SPIE 2200, Amplitude and Intensity Spatial Interferometry II, (9 June 1994); doi: 10.1117/12.177276; https://doi.org/10.1117/12.177276

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