[daip] VLBARUN failure at PCCOR task

Venkatessh Ramakrishnan vramakrishnan at udec.cl
Wed May 6 18:18:53 EDT 2020


Hello,

I encountered an error while running the PCCOR task as part of the 
VLBARUN pipeline. The error reads as follows:

All rows of the PC table are bad for the selected parameters.
Purport to die of UNNATURAL causes.

I am performing the reduction of my VLBA experiment BR229A using the 
AIPS19 version on my Linux machine. I tried plotting the PC table and 
found dips during the observation of the bandpass calibrator. If I 
understand correctly, these dips are caused when the location of the 
bandpass calibrator is farther away from the target, as a result, 
twisting the cables. But could that or anything else affect correcting 
the instrumental phases?


Best,
-Venkatessh.



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