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caracal-pipeline / caracal

Containerized Automated Radio Astronomy Calibration (CARACal) pipeline
GNU General Public License v2.0
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low level RFI #1260

Open viralp opened 4 years ago

viralp commented 4 years ago

Hi. Is there any autoflagging option available in the selfcal worker? I know cubical does clipping, but how to remove low level RFI as seen in the below uvplot of final visibility (after three rounds of phase selfcal)? I used tricolor's two rounds of autoflagging, before 1GC and after splitting the target.

image

bennahugo commented 4 years ago

You may need to manually do another round of flagging between rounds, at least this what I do in my pipelined processing.

Cubical is not great at flagging tiles where the gains are severely blown up due to residual RFI

On Fri, Oct 16, 2020 at 10:39 AM Viral Parekh notifications@github.com wrote:

Hi. Is there any autoflagging option available in the selfcal worker? I know cubical does clipping, but how to remove low level RFI as seen in the below uvplot of final visibility (after three rounds of phase selfcal)? I used tricolor's two rounds of autoflagging, before 1GC and after splitting the target.

[image: image] https://user-images.githubusercontent.com/4331123/96235322-ee295b00-0f9a-11eb-902c-f6e330edc52a.png

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Benjamin Hugo

PhD. student, Centre for Radio Astronomy Techniques and Technologies Department of Physics and Electronics Rhodes University

Junior software developer Radio Astronomy Research Group South African Radio Astronomy Observatory Black River Business Park Observatory Cape Town