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From: "William Podgorski" <wap@cface4.harvard.edu>
Message-Id: <9611081724.ZM26875@cface4.harvard.edu>
Date: Fri, 8 Nov 1996 17:24:04 -0500
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To: jerius@cfa.harvard.edu, gaetz@cfa.harvard.edu
Subject: EKCHDOS04
Cc: wap@cface4.harvard.edu
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Diab, Terry,

I sent the E-mail below on 25 Sept to document the rigid body alignment params.
I noticed today that when EKCHDOS03.rdb is used along with 3 term optic fits we
get the following focus positions relative to MP6:


               EKCHDOS03                           EKCHDOS04     EKCHDOS04
               Raytrace    X_corrected wrt MP6      Raytrace    Raytrace(abs)
     ZC, MP1:  -0.3540         -0.3578              -0.3611      10079.4059
         MP3:  -0.2520         -0.2636              -0.2616      10079.5054
         MP4:  -0.4456         -0.4921              -0.4912      10079.2758
         MP6:   0.0000          0.0000               0.0002      10079.7672

I have also put into the above table the X_corr values from my E-mail below.
It seems that the raytrace using EKCHDOS03 does not duplicate the
measured values very well for MP4. I talked to Terry, and he is
modifying the rdb mirror table to better agree with the data. Then
we will try to figure out why it happened.

Bill

PS: I added EKCHDOS04 results, which are closer to X_corr, and I have added
    an absolute position of focus wrt CAP datum A.

--------------------------- Old E-Mail ----------------------------------------


From: "William Podgorski" <wap>
Date: Wed, 25 Sep 1996 08:25:48 -0400
To: Gary_Matthews@kodak.com, cgha@Kodak.com
Subject: Cross_check, revised
Cc: vanspeybroeck@cfa, gaetz@cfa, mfreeman@vger, wap

Selected Tests:
09/23/1996  12:37:16.000
09/23/1996  11:54:28.000
09/23/1996  11:11:38.000
09/23/1996  10:28:49.000
09/23/1996  09:46:00.000
09/23/1996  09:03:15.000
09/23/1996  08:20:30.000
09/23/1996  07:37:49.000
09/23/1996  06:55:05.000

Absolute:

                        MP1         MP3         MP4        MP6
Q0_real          -0.0454255   -0.031098  -0.0329422  -0.034436
Q0_imag           0.0321301    0.038456   0.0350395   0.034114
X_corr            0.2039560    0.109697   0.3382670  -0.153863
Q2_real          -0.0104824    0.005229   0.0049242   0.026339
Q2_imag           0.0034693   -0.002716  -0.0004583  -0.008975
2nd Order resid   0.0175684    0.013188   0.0069180   0.003096
3rd Order resid   0.0139335    0.015339   0.0130358   0.015618


With Respect to MP6:

                        MP1         MP3         MP4         MP6
Q0_real_6:       -0.0109895   0.0033380   0.0014938   0.0000000
Q0_imag_6:       -0.0019839   0.0043420   0.0009255   0.0000000      Look here
X_corr_6:         0.3578190   0.2635600   0.4921300   0.0000000   <------------
Q1_corr_6:        0.0431627   0.0256132   0.0422067   0.0000000


-- 
===============================================================================
William A. Podgorski                Harvard-Smithsonian Center for Astrophysics,
                                       Smithsonian Astrophysical Observatory
Email: wpodgorski@cfa.harvard.edu   60 Garden Street, MS 5
Phone: 617 495 7363                 Cambridge, MA  02138
FAX:   617 495 7098                 USA

