title: Hack a FITs Image Header
body: <p>I need to change a few values in a couple of FITs image headers to fit with some test data I have. Therefore I'm trying to hack a FITs image header at the minute to run with the application.</p>
  
  <p>However at the minute - I can't even see the header, never mind hack it. I run Ubuntu.</p>
  
  <p>Can anyone advise some software to view the FITs - perhaps even hack it?</p>