wiki:DC3bPT1.2-3000

Version 3 (modified by rhl, 8 years ago) (diff)

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LSST DC3b PT 1.2 3000 run

We expect to carry out a third ("3000") processing run in July 2011.

This page is intended to help us decide what to include. Some of this is already done on trunk or a branch, but I'd like a list of everything that we want that is not in level 2000. Please sign your contributions; this is not a commitment to implement them.

Desired Features

Chebyshev interpolation (RHL)
For PSF interpolation (using the RHL pcaPsf for now)
A star/galaxy number (RHL)
Probably based on the instFlux (==gaussianFlux) or the modelFlux from UCDavis
Proper flat fields (RHL)
There is evidence of problems in the corners of the array.
Proper propagation of measurement masks
From measurement to Source; no need to handle proper assigment of bits to different algorithms (i.e. a single global enum is OK for now)
Diffim for snap pairs (ACB)
This needs to be implemented as a pipeline of some sort; possibly using a single pipette-based stage + two I/O stages
aperture corrections for model fluxes (RHL)
The modelFlux for a point source must equal the PSF flux. N.b. this requires that the same aperture correction be applied as for the psfFlux
cleanup aperture correction application code (RHL)
The current code (in the stage) is specific to psf mags + cut-and-paste copies [mea culpa].
Look at background level bias
I think that there's evidence for a bias at the two DN level

Things that should not be included

Cleanup of Policy (RHL)
Replacement of sets of stages with pipette mega-stages (RHL)