[daip] Calibration oddity.

[Craig Walker]

We created a CL table that only has data for one source.  We ran VPLOT 
without restricting which sources to look at, expecting that, because of 
the missing CL entries, we would only see that one source.  That was 
true up to the first scan with that source - data on that source were 
the first plotted.  But once past the first scan on the source in the 
table, other sources started to appear in the plot too.  So it appears 
to extend the last CL entry indefinitely and to other sources but does 
not use the first CL entry until the data for that source is 
encountered.  In normal usage, this is not a problem as you wouldn't ask 
for calibration of sources without CL entries.  But we were checking 
intermediate steps in the calibration sequence and got confused.

Cheers,

Craig

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     R. Craig Walker            Array Operations Center
     cwalker at nrao.edu           National Radio Astronomy Observatory
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