Inverted SDSS DR12 images

Posted by Richard Piccioni on May 27, 2020; 4:46pm
URL: http://astroimagej.170.s1.nabble.com/Inverted-SDSS-DR12-images-tp1355.html

I have been downloading sets of FITS files from the SDSS DR12 Science Archive Server, specifically images of the same field and camcol taken through g, r, and i filters).  When I open the files in AJI, I find they are not oriented in the same way.  I do not see that behavior when I open the same files in SAOImageDS9.

I can reorient the non-conforming image using AJI View functions, but of course those adjustments do not persist, e.g., when I create an image stack.  I'd like my students to be able to work exclusively within AJI, so have tried hard to find/write a macro that changes the FITS itself, but without success.

Any advice would be greatly appreciated.

Here's a SAS search that yields FITS files showing this behavior:

https://dr12.sdss.org/fields/runCamcolField?run=125&camcol=1&field=12

Compare the g- and r-band FITS.

Thanks,
Richard