Details

Type: Story

Status: Done

Resolution: Done

Fix Version/s: None

Component/s: pipe_analysis

Labels:None

Story Points:4

Epic Link:

Sprint:DRP S183, DRP S184, DRP S185, DRP S186

Team:Data Release Production
Description
Ivezić et al. 2004 (2004AN....325..583I) define a "Principle Color" analysis to estimate the accuracy of the photometric zeropoint calibration. The principle colors are defined by linear combinations of magnitudes in the SDSS bands. The coefficients in that paper are for the SDSS filters. To enable direct comparison with those results, derive the associated values of these coefficients for the HSC filters. The calibration here will start with just the RC2 dataset. A later ticket will use the full PDR1 to calibrate these coefficients.
Work for this ticket is being initiated on
DM13154. The current status is a rough derivation of the P2 coefficients which look very reasonable compared to the SDSS values (i.e. the differences are easily understood in terms of different filter response functions). Slight refinements may be made after the perobject Galactic Extinction correction is implemented inDM13519. Also, the need for a P2 > P2' calibration (based on a slight dependence of P2 vs. r band mag observed in the SDSS data: see Fig 2 and Section 3.2.1 of Ivezić et al. 2004) will be further investigated on DM14556 (in conjunction with DM14196 and after implementingDM13519).