This one is a bit odd....
I've got an NDF with and RA of 18h but when I run stats on it it reports
that the RA is -6h. If I use "ndftrace fullframe" the bounds of the image
come out correctly with positive RA.
Do other people see this? This seems to have been around for a while...
Test image at http://www.jach.hawaii.edu/~timj/test.sdf.gz