[daip] Position offsets in UVFIT

[Eric Greisen]

Andy Biggs wrote:
> Hi Eric. I gave this a go and it works - it's now possible to fit to sources far from the phase centre. It seems that the UVFIX+UVFIT method works better, but it's much more convenient.

That is not surprising - UVFIX will shift the phases correctly and then 
also recompute u,v,w for your source.  That should fit much more 
accurately than using the original u,v,w even with a careful phase 
description for the widely separated source.  Glad that it works okay 
anyway.

Eric Greisen