ds9 error messages
different versions of ds9 throw different errors for the same file.
Verison 7.3.2
!! AST: Error at line 3509 in file fitsimage.C.
! astRead(FitsChan): A longitude axis ('HPLN-TAN') was found without a corresponding latitude axis.
Versionn 8.1
!! AST: Error in routine wcsSkyFrame at line 37 in file frame/wcsast.C.
! astSet(FrameSet): Cannot maintain FrameSet integrity.
! Unable to accommodate the attribute setting "System=FK5, Equinox=J2000".