Charlie’s mirror, with it’s original optical surface

(As tested by R.F.Royce and myself)

Lets start with a profile comparison between Robo and the same diameter seen by the interferometer with all Zernike terms enabled

(Except piston, tip, tilt, defocus, and primary Coma)

(The blue line is the diameter profile from the interferometer, the black line is the profile from Robo)

Same comparison, but using only spherical terms

For reference, here’s the Contour map as seen by Dale Eason’s Open_Fringe

Here’s the report on the same optical surface from Mr. Royce

Finally, here’s the FigureXP reduction of the Robo data:

For those interested, all the raw data (including fringe images and still frames from Robo) may be downloaded from here: