[daip] Amplitude plot for one of the Antennas not showing in SNPLT

[Eric Greisen]

On 7/24/2020 10:15 AM, Abdulla Alhosani wrote:
> Dear Eric,
>
> Thank you for your reply.
>
> I have run SNPLT on the Cl and TY tables as you suggested. The data 
> for Hancock seemed fine and matched that from the rest of the 
> antennas. However, there was no weather data on Hancock at all for the 
> duration of the observation. I have checked the weather data as well 
> on NRAO database for that observation in Hancock and it is also not 
> showing any data. I assume that was the reason the data was flagged 
> when running VLBAAMP. Is it possible to still use the data from 
> Hancock by generating weather data (Tsys) or creating a new TY table? 
> If so, please let me know how to do proceed
>
> Best,
> *Abdulla Alhosani*


In VLBAAMP if you set DOFIT=-1 then the weather data is not used in 
APCAL which is probably the source of your problem.  At 4 GHz you should 
probably be okay without an opacity correction.

Eric Greisen




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