Pixinsight batch processing problem

[Spookyer]

I am doing a 2 panel mosaic. I just did the preprocessing for panel 1. No problems. I am now trying to do Panel 2. I entered the necessary data just like I did with panel 1. Diagnostics says ok. When I run the script I immediately get an error popup saying

Image Calibration
Cannot execute instance in the global context
Reason: NO master calibration frames or overscan regions have been specified.

The processing box thing say towards the bottom

Begin calibration of flat frames
Searching for a master dark frame with exposure time = .5s best match is a master dark frame of unkown exposure time.


I gather from that it is looking at the first flat frame which is .5sec long and saying it doesn't have a matching dark. My master dark loaded is 600sec to match the light images. I have never had this message before. I have checked the usual settings in the script and they are ok and the same I used an hour earlier for panel 1.

I just removed the flats from the script and it runs ok so it must be getting stuck on matching darks to them somehow.

Any ideas?

[Spookyer]

Just made a discovery, it appears I have by accident binned 2x2 my green images for panel 2. Everything else is 1x1 as I usually do it.

Would that be the problem?

[RickS]

Yes, Brett. It will be looking for 2x2 calibration frames to match the lights.

[Spookyer]

Okay, that problem solved then. Thanks Rick. Do I use the Resample in Pixinsight to convert my green images back up to the normal 1 x1 resolution. Is there a way of doing this in a batch, the tool likes like it is one by one?

Brett

[RickS]

Did you collect Lum as well, Brett? If you did and don't plan to add any synthetic luminance then I'd resample down the calibration masters, calibrate the green subs using them, and then resample up the green master. The calibration won't work perfectly and you'll loose resolution but the softer green data won't matter much if you're combining with sharper luminance.

Otherwise there are more exotic possibilities like drizzle integrating the green data to get some resolution back...

Cheers,
Rick.

[Spookyer]

I worked out how to batch the resample and the greens are now back to the correct resolution, however they are still showing as Binning 2x2 in the batch processing script and the script still doesn;t work. How does one change them to binning 1x1 so the script will work?

Brett

[RickS]

You can use the "Add Custom" button in BPP to add files and adjust their settings, including binning. Alternatively, you could edit the FITS headers of the resampled files using the FITSHeader process.

[Spookyer]

Thanks Rick, I will give that Add Custom a go.

Cheers
Brett