Syntax: sss (file with list of Flux-???.fits files) or: sss "all" (for all Flux-???.fits in current directory) Same setup sums: sums up Flux-???.fits with the same object name, coordinates, setup angles, etc. Also creates error file corresponding to sum. Output: sss(obs#)-(# summed)_(7 letter RA+DEC)[e].fits