I was wondering if anyone had any experience with CFITSIO. I have a FITS file with random grouped data. I would like to extract this data and, among other things, put it into a more accessible format.
I have been trying to use the command: fits_read_grppar_[flt] (fitsfile *fptr, long group, long firstelem, long nelements, > DTYPE *array, int *status ) without much success. I think I am most confused about the "long group" input. The documentation for this command is fairly scarce, and I do not know if the data is even in a group, or what the default input would be.
The reference for the above command is here. Thanks,