Re: Same Photometry Settings on Same Image - different results

Posted by clkotnik on Aug 08, 2019; 2:39pm
URL: http://astroimagej.170.s1.nabble.com/Same-Photometry-Settings-on-Same-Image-different-results-tp1199p1201.html

Karen,
With all the balls you have in the air I really appreciate you looking into this so quickly.  

I did not go into the details of how I arrived at this simplified example.  In fact I ran photometry of an image sequence of 332 images and the blue filter image in my simplified example was the first processed.  The measurements that resulted indicated all 332 were saturated.   If you create an image sequence with the two images in my example you will see the same behavior.  I just wanted to make it as simple as possible and so removed the image sequence part.


Regarding the synthesis of the images, they are from the AAVSO's AAVSOnet for a project requested by Josh Pepper. For these images, the camera is a CMOS camera under automated control of ACP - hence MaxIm DL controls the camera and pinpoint does the plate solving.  Then, the science and calibration images are transferred to a central Linux computer where a custom IRAF pipeline applies the calibration frames.  If you would like more detail on the IRAF processing I would need to get with Arne Henden which I am happy to do.

Doing a fast, efficient processing of hundreds of images on my local machine is what makes AIJ so special for me.  I am more than willing to work to get this resolved.
Cliff