By default SPLAT searches input spectra for a spectral coordinate system.
This can lead to unexpected behaviour when attempting to display spectra with
non-spectral coordinates (by selecting the GRID or PIXEL frames in an NDF), so
a new command-line flag "-keepcoords" has been introduced to inhibit the
search for spectral coordinates, and a UI preference Options->Find spectral
coordinates.
SPLAT-VO -- A VO-enabled Spectral Analysis Tool