[evlatests] Time error fixed.

Claire Chandler cchandle at nrao.edu
Wed Feb 18 11:17:27 EST 2009


This sounds suspiciously like what happened in January 2008, where the 
L350 synchronization was lost and eventually a new module was installed. 
Do we have any standard tests to detect this?

Claire

On Wed, 18 Feb 2009, Ken Sowinski wrote:

> On Tue, 17 Feb 2009, Vivek Dhawan wrote:
>
>> The EVLA knickers have been untwisted. I heard that a re-synch of the L350
>> was done, followed by all the antennas. Ken (+ Hichem or Rob) may wish to
>> elaborate.
>
> Yes, the L350 and all the antennas were synchronized again.  I worry
> that there were no measureable time offsets in the system before the
> synchronization and that we have no plausible explanation of how it
> could have been wrong in the first place.  There is more work to do
> to understand what happened.  A simple diagnostic would be useful.
>
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