[daip] Fillm error - any info to explain what it REALLY means about my data?

[Eric Greisen]

Sean Dougherty writes:

 > I just downloaded some data of mine (BD122 Apr 21, 2007) from the VLA
 > and when I run FILLM
 > I get the  error message below for some of these data. I can examine the
 > visibs with uvplt etc
 > and I'm curious as to what this error message really indicates about the
 > data. There appears to be
 > some seriously bad data in a few sections of the observation.
 > 
 > Any info would be welcomed.
 > 
 > FILLM1: Number bad nominal sensitivities: ant 14 IF 4 =       368
 > FILLM1: Number bad nominal sensitivities: ant 16 IF 1 =       370
 > FILLM1: Number bad nominal sensitivities: ant 16 IF 2 =       368
 > FILLM1: Number bad nominal sensitivities: ant 16 IF 3 =       454
 > FILLM1: Number bad nominal sensitivities: ant 16 IF 4 =       410
 > FILLM1: Number bad nominal sensitivities: ant 17 IF 1 =       368
 > FILLM1: Number bad nominal sensitivities: ant 17 IF 2 =       368
 > FILLM1: Number bad nominal sensitivities: ant 17 IF 3 =       368
 > FILLM1: Number bad nominal sensitivities: ant 17 IF 4 =       368

This is a summary of the bad nominal sensitivity messages that used to
come put in profusion.  The task traps these, flags the data, and now
prints only a few individual messages.  Then it counts for each IF and
antenna and does the summary at the end.  These data are already
flagged and this is a rather small number for a run of any length.
(The last guy who asked had ~8100 for each correlator.)

If you see seriously bad data still in the data set, then those data
are not related to this warning.  Might they be EVLA antennas and
might they need application of VLANT and perhaps plain old editing?

Eric Greisen