To: "Jeff Anderson-Lee" ,
"Michael Peck"
        ,
 "James Lerch" 
From: Mark Suchting 
Cc: "ATM List" 
Reply-To: Mark Suchting 


At 04:28 PM 7/22/2003 -0700, Jeff Anderson-Lee wrote:

>Yes, but Royce's measurement are reported in wavefronts, not waves.  To
>quote page 2 of the report: "Surface errors are 1/2 these
numbers", so isn't
>the the surface error given buy the report 1/2 of 38nm or 19nm?


Royce seems to report overcorrected figure and the Robo undercorrected ( ?)
so the total difference is still 40 nm RMS or so even allowing for halving
of the Royce RMS to give a surface RMS.

~Mark










>If Robo reported a surface error RMS of 20.0 nm, then the agreement is
>within 1.0nm or 5%.  Not bad.
>
>Jeff Anderson-Lee
>Scramento, CA

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