[daip] New Staff Reply - [!UXJ-401994]: FITS new WCS problem

Eric Greisen do-not-reply at nrao.edu
Mon Aug 20 16:27:22 EDT 2012


New Staff Reply: FITS new WCS problem

I did manage to get the file eventually and walked
through the header computation.  AIPS cannot handle 
skewed images and the coordinates attached to this
image are skewed.  The scheme to get the best 
average coordinates from such a CD matrix assumes
too much accuracy in the CD values.  I will change it
to favor rotations less than 90 degrees and to use
more sensible averaging.

Eric Greisen

Ticket Details
===================
Ticket ID: UXJ-401994
Department: AIPS Data Processing
Priority: Default
Status: Open
Link:  https://help.nrao.edu/staff/index.php?_m=tickets&_a=viewticket&ticketid=2203




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