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AstroHuntsman / obs_huntsman

Huntsman-specific configuration and tasks for the LSST Data Management Stack
GNU General Public License v3.0
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LSST PSF fitting routine issues #11

Closed fergusL closed 3 years ago

fergusL commented 4 years ago
danjampro commented 4 years ago

On doing more than one iteration of initial PSF measurement, the stack was throwing errors because no detections made the PSF candidate selection cut in the later iterations. The relevant LSST code is here.

In order to get more PSF candidates, one can increase the value of:

config.measurePsf.starSelector['objectSize'].widthStdAllowed

One side note is that (at least some of) the data we are using to test (i.e. that in metahunter) has a drastically different PSF across the image, which may be causing problems. We will have to tune these parameters when we have some better commissioning data.