Details
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Type:
Story
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Status: Won't Fix
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Resolution: Done
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Fix Version/s: None
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Component/s: Design Documents
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Labels:
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Story Points:2
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Epic Link:
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Team:Data Release Production
Description
Correctly handling wavelength-dependent photometric and PSF effects is one of the biggest qualitative differences between the current state-of-the-art and what we have in mind for LSST, and that makes it easy to get wrong. We need to make sure all steps that produce high-quality fluxes or rely on high-quality PSFs have access to object colors and a reasonable approach to using them.
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Activity
This ticket has been open for a few months now, and LDM-151 has evolved substantially since it was filed. Jim Bosch, is it still relevant? Merlin Fisher-Levine, is it on your todo list?
Probably best to just close this.
Sorry it's taken me so long to get round to this, but if you'd still like it done I could take a look at it next week or the week after when I start properly at Princeton...
Merlin Fisher-Levine – no need, thanks. We've just closed it down.
Merlin Fisher-Levine, I created this issue a while ago to ensure that we had extra eyeballs looking at whether chromaticity was handled correctly in the DRP pipelines, and given your expressed interest in making sure photometric calibrations are correctly applied in DRP, I think you'd be a good candidate to do it.
If you can keep an eye on whether chromatic dependent PSFs are handled well, too, that'd be great. I think the most important questions are whether we can actually infer an SED at every point we try to use a wavelength-dependent PSF model or flat-field, and whether we're producing any final outputs using too-preliminary SEDs or preliminary wavelength-dependent quantities.