Status: Won't Fix
Fix Version/s: None
There are several problems in obs_cfht/config/colorterms.py:
- the naming convention for Megacam --> SDSS colorterms is inadequate as it is called "e2v". It should be renamed "sdss" as in obs_subaru/hsc
- there are missing color terms for SDSS corresponding to Megacam filters: u2, g2, r2, i2, z2 and i3.
- the current color terms for panstarrs are identical to the sdss ones
- there is a color term for u band in panstarrs while this filter doesn't exist
- mentioned in
Lauren MacArthur, do you know enough about how our color term code works for this to be an easy thing for you to do?
If so, please help me to remember to bring it up next time we do DRP pair-coding so we can both get it done and increase the number of people who know how the color-term code works.
Dominique Boutigny, I'm guessing we'll be able to get to this sometime in the next month - if it'd be particularly helpful to get it sooner, please shout.
While I wouldn’t claim to be intimately familiar, it looks like item 1. should be easy enough. Adding new colour terms should also be easy if the numbers we need can all be gleaned from the linked site.
Céline Combet, Marina Ricci and myself are working on color terms for CFHT Megacam, so I think that we can handle this ticket. We will also take care to implement the new color terms using the column names used in the reference catalogs available on lsst-dev:/datasets/refcats (see discussion on: https://lsstc.slack.com/archives/C2K97E3L5/p1554304959026300)
http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/megapipe/docs/filt.html seems to be the reference for Megacam–>SDSS–>Pan-STARRS color terms