[daip] Taks manual phase-cal

[Amy Mioduszewski]

Hi Hongmin,

Unfortunately the answer is, it depends.   Do you know why the antenna 
went missing?  There have been phase/delay jumps seen when setups 
change.  If, in particular, the antenna was pre-empted to do UT1-UTC 
measurements then there might be a problem, because that involves 
changing setups.  So I would do the manual phase-cal, and check it 
before and after the jump to make sure the correction is OK for the 
whole time.  If there is a problem, it can probably be worked around, 
get back to me and I can probably give you a recipe.

Amy

On 10/16/2015 12:55 PM, Eric W Greisen wrote:
>> Hi Eric,
>>
>> Now I got a problem which i am not sure:
>> I want to use a very strong source as the calibrator for manual phase cal
>> (VLBI data).
>> But one of the antennas stopped and restarted before the scan of this
>> source (note above).
>> Then whether the manual phase-cal could work properly for this case (?)
>>
>> best,
>>
>>       Hongmin
>>
>>
> My guess is that the phase will change in the stop/restart
> so that this antenna's phase will have a jump in it.  Amy
> may know more.
>
> Eric Greisen
>
>
> _______________________________________________
> Daip mailing list
> Daip at listmgr.nrao.edu
> https://listmgr.nrao.edu/mailman/listinfo/daip