[daip] Problem with VPLOT

Eric Greisen egreisen at nrao.edu
Tue May 14 12:00:00 EDT 2013


Andrew Biggs wrote:
> Hi there. I'm experiencing a problem with VPLOT in that it is not always
> displaying calibrated data correctly. I calibrated one source out of 5,
> somewhere in the middle of the observation, but if I plot the data for all
> sources, VPLOT shows the data for that source as if uncalibrated. If I
> then only plot that source, the data now appear correctly calibrated. The
> same happens if I change the time range to something less than the full
> range. I then tried calibrating two sources, one of which happens to be
> the first scan. In this case, VPLOT only shows the first scan to be
> calibrated (see attached figure - all high SNR scans should show
> calibrated phases). Again, selecting only the two calibrated sources shows
> correctly-calibrated data. This problem only seems to exist in 31DEC13.
> This is VLA data from 1999 at Q band.
> 
> Cheers,
> 
> Andy
> 
> 
> 
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I have found a data set with CL table issues - let me solve that and see 
if it fixes your issues.  I suspect it will.  The problem is that iot is 
finding totally unrelated solutions for antennas that are missing and 
being confused by them...

Eric




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