# Update HSC transmission curves on shared repos (e.g. /datasets/hsc/repo)

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## Details

• Type: RFC
• Status: Implemented
• Resolution: Done
• Component/s:
• Labels:
None

## Description

With DM-22955, spatially varying narrow-band filter information has been added to obs_subaru. These updated transmission curves need to be installed on lsst-dev in /datasets/hsc/repo and on tigress in /tigress/HSC/HSC in order to be used generally.

Installation of the transmission curves is described in RFC-440, and is simply:

 setup obs_subaru installTransmissionCurves.py /path/to/repo

Note that the above path is to the regular data repository root, not a calibRoot; transmission curves are not yet versioned (they will be in the Gen3 butler). This new installation could overwrite the old installation as it will install new spatially varying information, and the older data (g/r/r2/i/i2/z) has not changed. However, if that is undesirable, the old transmission directory could be moved to transmission_old.

• Description and reason for addition/change/deletion: The new datasets enable new processing steps that improve the quality of the reductions for narrow-band data.
• Target top-level-directory for location of addition/change/deletion: /datasets/hsc/repo
• Organization of data:
• transmission curves will go into /datasets/hsc/repo/transmission
• Other necessary domain knowledge as identified by project members relating to the contents of the data: provided in the RFC link above.

## People

• Assignee:
Eli Rykoff
Reporter:
Eli Rykoff
Watchers:
Eli Rykoff, Hsin-Fang Chiang, Jim Bosch, John Swinbank, Paul Price