On Thu, 31 May 2012, Malcolm J. Currie wrote: >> !! FTMKYJ: Error modifying the BLANK header card. Error was: >> ! keyword not found in header >> ! NDF2FITS: Error converting an NDF into a FITS file. >> ! Application exit status SAI__ERROR, Error >> ! prompt > > Please update from the master repository to obtain a fix for this. > Sorry. I had missed an extra subroutine that needed to handle the > BITPIX=64 case. Thanks, that seems to have fixed this error. Not sure that we're handling BLANK pixels correctly so I was hoping this would help, but it hasn't... Peter.