iraf-fitsutil binary package in Ubuntu Focal amd64

 Several tasks to operate of FITS files and extensions from within IRAF,
 like copying, extension extraction, conversion etc.
 .
 The following tasks are available:
 .
  * fgread: Read a FITS file with FOREIGN extensions
  * fgwrite: Create a FITS file with FOREIGN extensions
  * funpack: Uncompress a FITS file
  * fxconvert: Convert between IRAF image types.
  * fxcopy: Copy FITS files or FITS extension to an output FITS file
  * fxdelete: Delete FITS extensions in place
  * fxdummyh: Create a dataless single FITS file
  * fxextract: Extract a FITS extension
  * fxheader: List one line of header description per FITS unit
  * fxinsert: Insert FITS files or extensions into another FITS file
  * fxplf: Converts a pixel list file into a BINTABLE extension
  * fxsplit: Split a multiple extension FITS file into single FITS files
  * ricepack: Rice compress a FITS file
  * sum32: Compute the 32-bit FITS 1's complement checksum

Source package