#28 Beam keywords are not saved in wideband MFS images

[André Offringa]

Related to #20, reported by N. Hurley-Walker:

"I might still be seeing a bug in
the MFS fits header outputs though:

[nhw@mwadas2 1067875320]$ wsclean -version

WSClean version 1.5 (2014-12-16)
This software package is released under the GPL version 3.
Author: André Offringa (offringa@gmail.com).

and running a clean with the new -fitbeam option...

But there is no BMAJ, BMIN, BPA in the MFS fitsimage header, only in the
individual subchannels.

See /data/das2/nhw/fitbeam_test/1067875320 for the example files, and the
wsclean command in wsclean.sh."

[André Offringa]

Another comment by Natasha:
"even with the -fitbeam parameter, the different channels still have
the same BMAJ, BMIN, BPA in their headers. Is that not right? I just
assumed they were restored with the same beam (like in the old-style
-nofitbeam option). In which case the MFS image should just use the same
beam again. Presumably this is causing a little loss in resolution at all
but the lowest frequencies that are imaged."

[André Offringa]

While not yet solved, I close this since the beam parameters are deliberately not written to the MFS image -- Ticket #42 reports the right way to fix this.