[evlatests] AM889 observation now on the EVLA

Barry Clark bclark at nrao.edu
Fri Jun 29 14:40:46 EDT 2007


Just to document, the script was restarted at 16:03:21, and then
an antenna was added to the running script at 16:07:34.  Is it possible
that the latter was the thing that caused things to stop working?


> From evlatests-bounces at donar.cv.nrao.edu  Fri Jun 29 11:33:48 2007
> Date: Fri, 29 Jun 2007 13:33:28 -0400
> From: Ed Fomalont <efomalon at nrao.edu>
> 
> Hi All,
> 
>     Not looking too good.  Is this the first test of 3.3 sec sampling?
> 
> AM889  Lband 2 if's 2 pols 7 channel:
> 
> 14:00 - 1530  good phase stability, but fluctuating amp stability.
> 
> For calibrator at 16:04 until now.
> LOST PHASE STABILITY ON ALL  TELESCOPES EXCEPT
>    19 (ref)  13, 14, 16, 17, 18, 20, 21, 23, 24, 26, 27
>                   i.e. only EVLA antennas
> 
> I FIND NO COHERENCE AMONG THE VLA ANTENNAS OR BETWEEN
> THE VLA-EVLA ANTENNAS.
> 
> LOTS OF DATA OVERFLOWS
> 
> ===================================================
> 
> Hard to see data from CV in much detail, but only EVLAxEVLA baselines are
> useful after 1600.
> 
> Ed
> 
> Data on hamal.aoc.nrao.edu:  user 51 indisk 1, slot 4 (6 being still filled)
>    will look at this in about 30 min.
> 
> 



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