rob pfile Posted October 19 Share Posted October 19 is there a way to get uncompressed raw subs from telescope.live? pixinsight will not open compressed fits files. furthermore, these subs don't seem to be compressed in a way that funpack can uncompress the files. the headers are not compatible with funpack: Quote Error processing file: CHI-1-CMOS_2023-10-18T23-54-04_NGC7293_Halpha_300s_ID396804_raw.fz in HDU number 2 FITSIO status = 252: 1st key not SIMPLE or XTENSION Extension doesn't start with SIMPLE or XTENSION keyword. (ffrhdu) BSCALE = 1 Input file is unchanged. so i guess the question is, what software was used to compress these files, and how can i batch uncompress them? note that i had to change the file suffix for funpack to even open the file. none of this would be a problem if the calibrated subs were not somehow over subtracted. a great majority of the pixels in the calibrated subs are clamped at 0. i need to do the calibration myself but can't open the files. observatory on the mac can open these files but i'm not sure if it can do a batch export. thus i am looking for a different way to uncompress these files. thanks Link to comment Share on other sites More sharing options...
Jarmo Ruuth Posted October 19 Share Posted October 19 Hi Rob, If you are willing to use Python you can use my tool here: https://ruuth.xyz/FitsPyInfo.html. You can of course modify it to fit you needs. In another thread has been also other suggestions like using Siril. Jarmo 2 Link to comment Share on other sites More sharing options...
rob pfile Posted October 19 Author Share Posted October 19 14 minutes ago, Jarmo Ruuth said: Hi Rob, If you are willing to use Python you can use my tool here: https://ruuth.xyz/FitsPyInfo.html. You can of course modify it to fit you needs. In another thread has been also other suggestions like using Siril. Jarmo sure i can use python. it does turn out that observatory can batch export the files as well. i'll give your script a try. it does seem that there is something wrong with some of the subs - the background ADU is much lower than the dark in most of the subs. is this a problem seen on CHI-1-CMOS? Link to comment Share on other sites More sharing options...
rob pfile Posted October 19 Author Share Posted October 19 ok FitsPy worked a lot better than a trip thru Observatory. i think the data was getting mangled by Observatory; i don't have the clipping problem after converting with FitsPy. 3 Link to comment Share on other sites More sharing options...
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