RE: Re[2]: [ATM] holographic null test on round robin mirror C

[Jim Burrows <burrjaw@earthlink.net>]

At 2005-02-04 09:21 -0600, Steve Koehler wrote:

>Dale and I are going to do one more thing with this test on mirror C.  We're
>going to rotate the mirror 180 degrees to see if any of the asymmetric 
>features
>visible at null follow the mirror.

How about a REALLY tough test: make a test tower (the toughest part) so the 
mirror is resting comfortably horizontal, rotate it 90° and see if the 
primary astigmatism estimates change sign.  Webcam Hartmann is still trying 
to pass that test...

         -- Jim Burrows
         -- mailto://burrjaw@earthlink.net
         -- http://home.earthlink.net/~burrjaw
         -- Seattle N47.4723 W122.3662 (WGS84) 

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