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teuben / dc2019

Improving Image Fidelity on Astronomical Data: Radio Interferometer and Single-Dish Data Combination (workshop material)
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DC_script.py fails at step 6 and 7 #21

Closed teuben closed 2 years ago

teuben commented 3 years ago

This is the new "python3only" branch (although the casa5 version also does it). Steps 0-5 all work.

In step-6 I get:

SEVERE SynthesisImagerVi2::defineImage (file casa-source/code/synthesis/ImagerObjects/SynthesisImagerVi2.cc, line 594) Error in building Coordinate System and Image Shape : 2021-04-30 13:22:02 SEVERE MSTransformRegridder::calcChanFreqs calcChanFreqs failed, check input start and width parameters

In step-7 I get this:

Table .../scripts4paper/tmp/skymodel-c_120L.sd.SD_ro_TPfac1000000.0.ms does not exist

emoravec commented 3 years ago

I also get the same error at step 6 running DC_script.py from the 'python3only' branch.

LydiaMF commented 3 years ago

step6: Can it be that mode (in the par-file) is set to 'cube' instead of 'mfs' for the skymodel-data? see Emily's error message on slack-channel #testing

step7: Oh my gosh, I'm crying and dying from laughing. I switched the create_TP2VIS_ms and transform_INT_to_SD_Freq_spec off to save time once they were created in the first run. If you uncomment these code blocks, it works.

LydiaMF commented 3 years ago

step6: I was able to reproduce it. This happens when you use the channel setup from M100 for the simulated cont data. Use mode='mfs' and any channel setup will be ignored.