RuntimeError: Empty PSF slice detected while fitting. Check your data.

[Viral Parekh]

Hi Folks,

I have recently joined the board and testing DDFacet on MeerKAT data. I am using newer version wscms of DDFacet. It does not allow me --Freq-NBand more than 3 and giving the following error (with higher values than 3) -
File "/home/parekh/DDFacet/DDFacet/Imager/ClassDeconvMachine.py", line 473, in _finalizeComputedPSF
raise self.fit_stat #delay fitting errors
RuntimeError: Empty PSF slice detected while fitting. Check your data.

I have tested the same data with wsclean and I can split measurement set with -channelsout 10 without any problem. Could any one please look at this issue?

Thanks in advance!

Cheers,

-Viral