[evlatests] AD562, Sunday afternoon

[Rick Perley]

    Too hot to be outside (102F), came in at 4:30 PM to see how things 
were going. 

    Loaded Dwaraka's 2nd run -- FILLM hung up -- turns out vispipe is 
broken, so FILLM is waiting for the next piece of data to come down in 
order to finish.  Operator tells me Ken is trying to get things going 
again.  He'll have to report on what went wrong, later. 
    I was able to load about 2  hours' data, including two good looks at 
a calibrator. 
   
    Some curiosities in these data:

    1) Antennas 13 and 16 were included, even though they have no 
receivers.  Antenna 16 was flagged, but 13 was only intermittently 
flagged. 
    2) As on Friday night, antenna 23 is *very* erratic in amplitude.  
The phases are fine. 
    3) Antenna 18 is being flagged, but the data are good.  Antenna 19 
was flagged at the beginning, but not after about an hour.  The data are 
fine throughout. 
    4) The most peculiar thing:  All EVLA antennas give no fringes in IF 
'B'.  Whatever is causing this failure is not being caught by the flagger. 
    5) Antenna 26, IF 'D' stopped fringing partway through the early 
part of the run -- not flagged. 

    All other antennas seem fine, giving good, stable fringes.