When making a coadded image, we use the header of one of the images in the list.
There could be some keywords that need to be added or updated (e.g., with the start/end of the exposure or the total exposure time).
It could also be useful to add the file names of the images used in the coadd and the number of the image all were aligned to.
When making a coadded image, we use the header of one of the images in the list. There could be some keywords that need to be added or updated (e.g., with the start/end of the exposure or the total exposure time). It could also be useful to add the file names of the images used in the coadd and the number of the image all were aligned to.