[daip] shifts in point sources

[gcastell at iafe.uba.ar]

Dear colleague,

My name is Gabriela Castelletti, I am calibrating VLA continuum data at 1.4
GHz, the source is SN 1006 which has a diameter comparable to the primary
beam (~30') and was observed with a single pointing. We detected several
shift in the positions of the point sources comparing with an image
obtained with Australia Telescope Compact Array, which does not seem to
follow any rule. Could you tell me, please, if there is a task in AIPS to
correct such shifts?

Thank you very much in advance,
Gabriela