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Changes between Version 9 and Version 10 of Durham_MDS_Testing4


Ignore:
Timestamp:
Dec 1, 2009, 6:53:35 AM (17 years ago)
Author:
shaun.cole@…
Comment:

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  • Durham_MDS_Testing4

    v9 v10  
    1919[[Image(psf_x_30204_30204NM.jpg,400px)]]
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    21 One potential problem is demonstrated here. The above shows the difference in PSF magnitude as a function of x position on the stack for two reductions of the same stack (30204). One is the provided cmf file, the other is our own run of psphot (code from SVN as of Nov 25th 2009) on 30204. Note the shift in difference with x. It must be said that there is no such shift between 29871 and 30204.
     21One potential problem is demonstrated here. The above shows the difference in PSF magnitude as a function of x position on the stack for two reductions of the same stack (30204). One is the provided cmf file, the other is our own run of psphot (code from SVN as of Nov 25th 2009) on 30204. Note the shift in difference with x. ''It must be said that there is no such shift between 29871 and 30204'', so this does not explain the non-linearity seen there.
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