Details
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Type:
RFC
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Status: Implemented
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Resolution: Done
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Component/s: DM
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Labels:None
Description
We wish to adopt the best practice default configuration settings as determined by HSC (and adopted for their full processing data production runs). These values have been carefully scrutinized and fully "battle-tested" on all of the HSC SSP data available to date (~300 square deg). In DM-6815 we have made the appropriate changes on a branch and here wish to advertise these changes (in addition to soliciting feedback). Please see DM-6815 for further details, but here is a summary of the proposed changes:
charImage:
| Name | HSC value | LSST value | Proposal |
|---|---|---|---|
| Astrometry SIP Fitting order | 3 | 4 | Set to HSC via config override (as in HSC) |
| Aperture Flux Slot | radius=12 pixels | radius=3 pixels | Set to HSC |
| HSM Algorithms | Run | Not Run | Set to HSC |
| Psfex flux scale | Aperture 7 pixel radius | Aperture Slot= 3 pixel radius | Set to 9 pixel radius (7 not in default list) |
| background estimation | useApprox=True | useApprox=False | Set to HSC |
| background binSize | 128 | 256 | Set to HSC |
calibrate:
| Name | HSC value | LSST value | Proposal |
|---|---|---|---|
| Aperture Flux Slot | 12 pixel radius | 3 pixel radius | Set to HSC |
| background estimation | useApprox=True | useApprox=False | Set to HSC |
| background binSize | 128 | 256 | Set to HSC |
stacking:
| Name | HSC Value | LSST Value | Proposal |
|---|---|---|---|
| LocalBackground | True | False | Set LSST default to True after |
| background estimation | useApprox=True | useApprox=False | Set to HSC |
| assembleCoadd.minClipFootOverlap | 0.6 | 0.65 | Set to HSC |
| assembleCoadd.clipDetection. nSigmaToGrow | 2 | 4 | Set to HSC |
| assembleCoadd.clipDetection. background.binSize | 128 | 256 | Set to HSC |
| assembleCoadd.doWrite | False | True | Kept LSST but set to False when running coaddDriver |
Attachments
Issue Links
- blocks
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- Done
Given the lack of pushback, this RFC is now adopted.