Questions on processing data.

Software Siril
1

Another question - I have practice data from a gentleman named Wei-Hao Wang. He runs very complicated observing playlist (at least to my simple eyes), but I learn a lot. I have a few questions:

  1. The data covers data at each band at 2 and 12 seconds and 1 and 2 minutes (?). All other parameters being equal, can I combine these sets of data all taken on the same night.
  2. I have immense probles when I include his dark files. The data files are at 12 sec and 1 minutes only. I am currently working with the 12 sec. data and I get this message “.21:46:02: After dark subtraction, the image contains many negative pixels (47%),” calibration frames are probably incorrect". I don’t know how to handle this.
  3. How do you cull (is that the right term) flats, darks, and biases other than visual inspection.
  4. Any and all help greatly appreciated.
2

Hi, for the darks problem you can use dark optimization if you have also some bias files: Calibration — Siril 1.4.2 documentation (look for ‘dark optimization’ below this anchor)

I don’t understand question 3, the answer is probably in the same page. Good luck