To: 
From: Michael Peck 
Reply-To: Michael Peck 


At 09:57 24-07-03 -0400, James Lerch wrote:


>I'm hoping when the mirror arrives, the10th order coefficients are included.
>I've asked for them via Email, but I haven't received them, nor have I
>received
>the order and units for the coefficients we do have...

I'm pretty sure this software is using what's commonly known as the
"Fringe" set of Zernike polynomials. Ordering is the same as on
the site by James Wyant at
http://wyant.opt-sci.arizona.edu/zernikes/zernikes.htm>, minus the
piston term. Units are waves {at} 633nm.

The site is interactive. Give it a try! The first three (2nd order) terms
don't contribute to aberrations so leave those out. Royce removed the coma
terms from his RMS computation and maybe from the map as well. Those are
terms 6 and 7 (3rd and 4th "4th order" terms).

Or, if you're too lazy to type in 20 some numbers here is my reconstruction
of the wavefront (not as fancy but maybe more useful)

As given by Royce (less the missing 10th & 12th(?) order terms):
http://home.netcom.com/~mpeck1/astro/royce_wf.png>

My estimate of the wavefront from James' foucault data and images (as
reprocessed by me):
http://home.netcom.com/~mpeck1/astro/mike_wf.png>

James' original data (pooled into one big data set); [spherical terms
only]: http://home.netcom.com/~mpeck1/astro/james_wf.png>.

I don't think that 3rd "2nd order" term is of any particular use.
Sorting it out isn't going to help you any. Steve Koehler, are you still
with us?

Mike Peck


_________________

Michael Peck
email mpeck1{at}ix.netcom.com
Wildlife photography page http://home.netcom.com/~mpeck1/index.html Amateur
telescope making http://home.netcom.com/~mpeck1/astro/astro.html

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