Re Trying to calibrate SX AO


Aug 31, 2008

 


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#33623 Aug 31, 2008

Hi Paul



What a lot I could write about this problem! In fact I have previously

described it in great detail on this forum.......



The short answer is that you can only do dark frame subtraction on the main CCD

guide tab - not the SX AO guide tab. For basic calibration you must find a

genuine bright isolated star and use that. Any other with probably be ignored

by Maxim for the reasons you have discovered.......



regards



Lawrence Harris





>Trying to calibrate SX AO

> Posted by: "paul_lx200gps" paulskitching@... paul_lx200gps

> Date: Sun Aug 31, 2008 2:47 am ((PDT))

>

>Hi All

>

>I have tried calibrating in Version 4 and 5.01 of Maxim. I have also

>contacted tech support before posting here and I'm awaiting a reply.

>

>The problem I have is that the calibration will lock onto a hot pixel.

>The calibrartion results in a failure because the star did not move 5

>pixels. I'm unable to subtract a dark frame to help with this. Is

>there something else I can try (workaround) to get me past this first

>hurdle.

>

>-Paul



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