Harvard-smithsonian Center for Astrophysics
نویسندگان
چکیده
This memo describes the results of Shack-Hartmann wavefront sensor measurements of the 48” mirror at the Whipple Observatory, Mount Hopkins, AZ. The observations show significant errors in the figure of the primary mirror. Visual inspection of the data shows spots that are significantly shifted, distorted in shape, and some spots that are missing entirely from the images. Local slope errors on the mirror surface are as large as 1.6 arcsec, and vary in direction and magnitude from one location to another. The severity of the local slope errors precludes measurement of the large scale aberrations. Our conclusion is that the 48” mirror is significantly flawed.
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