[daip] Source correction with CLCOR

[Andrew Biggs]

Hi Eric. I have a question about CLCOR versus UVFIX. CLCOR seems to have
worked well for the phase calibrator, where the the position shift was
only a few mas. I also shifted the target, but by nearly an arcsec. The
resultant map of the target was pretty awful and I suspect that this is
because the shift was too large. I repeated the calibration without the
target CLCOR shift and instead ran UVFIX after all the calibration steps
had been carried out. This map looks absolutely fine. So, I think that
this is entirely expected behaviour, but just wanted to check with you.

Cheers,

Andy

On 27/07/2012 22:59, "Eric Greisen" <egreisen at nrao.edu> wrote:

>I have putbck revisions of CLCOR and FITLD.  The former defends itself
>and reports and changes in the apparent coords of > 0.01 degrees.  The
>latter in IDI always computes apparent coords and also reports any with
>changes > 0.01 deg.
>
>Thanks
>
>Eric Greisen