Hi All, I’m sending this out as my registration is in process (Siril 1.4 beta). I have a huge FITS sequence of 33,746 subs and am doing a Drizzle (2.75 - drop shrink .85). Thus far I’ve only seen one registration FITS file created that is still growing (233MB+) even though the console is showing it having went through 1815 frames. Since this is uncharted territory for me I wanted to see if it’s doing the right thing. Can’t believe when all is said and done it will have only one file to stack. Thanks in advance.
Hi,
You can compute the size of the output from size of the input:
- if input is 16b and you force 32b, multiply by 2
- with a drizzle scale of 2.75, output is 2.75^2 so multiply by 7.6
- if your sensor is color multiply by 3
So if all of the above is true, your output fitseq will be 45 times larger than the input. You may want to reconsider some of the options based on the above…
Cheers
C.
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Thanks for the quick reply. Indeed my sequence file is 140GB. I have plenty of disk so no problem. My question was related more towards the output r_XXXX registration files. In all other previous registrations (without using a sequence) I would get one registration FITS file (r_XXX) per FITS file. Now registration is producing only ONE r_XXX FITS file thus far even though Siril has went through 2,000+ frames/images. Obvoiusly I’m not getting a one to one mapping between the FITS files in the sequence and the output registration FITS files.
Yes, using fitseq format will produce a single r_xxxx.fits file, growing as more images are written to it
So final question; Does stacking still read through this large file and work as before using your parameter settings? Thanks
Yes it does. It’s just a multi-image cointainer.