[evlatests] Quick EVLA System Check

[Rick Perley]

    It gets stranger ...

    I retrieved the pointing solutions from this morning's run, to find 
that antenna 16 gave perfectly good pointing solutions at C, X, and 
K-bands.  So, antenna 16 was definitely fringing at the time of this 
test.  No solutions reported from antenna 24, however.
    So I then re-filled the data, taking off all flagging, and also 
filling the pointing data.  Amazingly -- there are still no data from 
antenna 16 present.  So how can the Modcomps see the data in order to 
get pointing to work, but that same data fail to be loaded by FILLM?
    But antenna 16 is not the only one giving pointing solutions without 
any apparently data -- VLA antenna 6 has the same behavior.

    I also note that the K-band pointing solutions are all quite normal 
-- including the apparent flux density. 

   



Ken Sowinski wrote:
> On Mon, 5 Feb 2007, Rick Perley wrote:
>
>>    Results:
>>
>>    For reasons unexplained, antennas 16 and 24 gave no data at all --
>> not even with all the flags turned off in the FILLM stage.  The operator
>> reports the antennas were in the array, in the appropriate state.
>
> At the moment we are observing at L band, 2AC, and antennas
> 16 and 24 look just fine.
>
> I can say even less about the rest of the bizarre behavior
> reported by Rick.
>