It seems some recent changes are making PyMORESANE quit the deconvolution at a shallower level. Something for you to explore @JSKenyon when you get your teeth sunk into the pipeline.
For example, see recent pipeline results here: /net/aretha/home/oms/VLA-CygA/reduction-18Aug15-HI-224chan-chan16-lsmthr0.25-spi-moresane3-rob-2-multisig/*/*s7*.res*
I'm looking at the stage 7 image produced like this:
(Note the new -moresane-sl 12,6,3 option: meaning, use --sigmalevel 12 on the first major loop iteration, 6 on the second, 3 on the third. Except I just found my wsclean patch was broken, bah, it was using -sl 3 throughout... should be fixed now).
By contrast, the stage 7 images from a month ago look like this: /net/aretha/home/oms/VLA-CygA/ref/reduction-23Jul15-HI-224chan-chan16-lsmthr0.25-spi-moresane3-rob-2/*/*s7*.res*
As you can see, this just has an explicit --sigmalevel 3. So, both images have effectively been deconvolved down to 3 sigma -- but the one from last month has much lower residual.
It seems some recent changes are making PyMORESANE quit the deconvolution at a shallower level. Something for you to explore @JSKenyon when you get your teeth sunk into the pipeline.
For example, see recent pipeline results here:
/net/aretha/home/oms/VLA-CygA/reduction-18Aug15-HI-224chan-chan16-lsmthr0.25-spi-moresane3-rob-2-multisig/*/*s7*.res*
I'm looking at the stage 7 image produced like this:
(Note the new
-moresane-sl 12,6,3
option: meaning, use --sigmalevel 12 on the first major loop iteration, 6 on the second, 3 on the third. Except I just found my wsclean patch was broken, bah, it was using -sl 3 throughout... should be fixed now).By contrast, the stage 7 images from a month ago look like this:
/net/aretha/home/oms/VLA-CygA/ref/reduction-23Jul15-HI-224chan-chan16-lsmthr0.25-spi-moresane3-rob-2/*/*s7*.res*
The command was:
As you can see, this just has an explicit --sigmalevel 3. So, both images have effectively been deconvolved down to 3 sigma -- but the one from last month has much lower residual.