DM-42979: Use calibFlux for source selector #983
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parejkoj
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Sep 27, 2024
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| self.star_selector["science"].signalToNoise.fluxField = "slot_CalibFlux_instFlux" | ||
| self.star_selector["science"].signalToNoise.errField = "slot_CalibFlux_instFluxErr" |
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What was the default for these? I would have thought that CalibFlux was the default, but ScienceSourceSelector defaults to PsfFlux. That surprises me, and I wonder if we have other places that have been inadvertently using the wrong flux?
Although, you shouldn't have a negative flux if we're restricting to S/N>10, since N is always positive, no?
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These defaulted to PsfFlux, and none of the later source selectors apply a N/N cut. They all assume that has been taken care of by this first selector, so if a source with valid PsfFlux but negative CalibFlux makes it through this selection it gets used for photometry.
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isullivan
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This ensures that the flux used in photometric calibration is a valid value. Otherwise the PsfFlux is used for selection and slot_CalibFlux is used for calibration.
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erykoff
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