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echo: atm
to: ATM
from: jlerch1{at}tampabay.rr.com
date: 2003-07-21 14:27:12
subject: ATM Robo Vs. The Intereferometer

From: "James Lerch" 
To: 
Cc: "ATM List" 
Reply-To: "James Lerch" 


Ok, Let the FUN begin 

For those that want "Just the Facts" here's everything I know at
the moment: http://lerch.no-ip.com/atm/2ndTry/lerchtest1.ZIP (300KB from RF
Royce)

For reference, Mr. Royce indicated that at the 0 Degree starting position,
Axis A was Up.  Also the 10th order polynomials are on the way if we need
them.

For those that want just the reduced data with out opening a web browser.

From the Quick Fringe Test Report: (with my math in {})

Unit = Waves
Wavelength = 633nm

RMS Wavefront = 0.145  {46nm Surface} PV wavefront  = 0.67       {212nm Surface}
Strehl Ratio    =  0.44
Astigmatism   =   0.40  83.3deg
Spherical = -1.43

So, we have astigmatism.  I imagine 0.4 is not a "good thing"

Question, given what we now have, can we work backwards and calculate what
Robo "should" have seen based on the interferometer data?

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction,testing, and coating site)

"Anything that can happen, will happen" -Stephen Pollock from:
"Particle Physics for Non-Physicists: A Tour of the Microcosmos"

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