QA for run 4623 (rerun 40, strip 23S), fields: 24-376

The Estimates of Photometric Zeropoint Errors:

Zeropoint corrections to flatten background

	Zeropoint Corrections to Flatten Background
band:	u	g	r	i	z
Col. 1	-0.008	0.009	-0.001	0.000	0.017
Col. 2	0.003	0.021*	0.018	0.021*	0.031*
Col. 3	0.009	-0.010	0.010	0.007	0.024
Col. 4	0.012	-0.021*	-0.018	-0.011	-0.009
Col. 5	-0.008	0.006	0.005	0.022*	0.017
Col. 6	-0.012	-0.008	-0.018	-0.002	-0.031*

*Red entries are triggered by abs(entry) > (0.02 0.02 0.02 0.02 0.03) in (u g r i z)
The table above lists the photometric zeropoint corrections
required for a flat background across all camera columns.

Zeropoint corrections from principal colors

	Zeropoint Corrections to Fix Principal Colors
band:	u	g	r	i	z
Col. 1	-0.012	0.006	-0.004	-0.002	-0.005
Col. 2	0.028*	0.014	-0.009	-0.005	-0.024
Col. 3	-0.002	0.007	-0.001	-0.006	-0.005
Col. 4	-0.012	0.010	-0.005	-0.005	0.004
Col. 5	-0.003	0.006	-0.002	-0.004	-0.007
Col. 6	-0.021*	-0.003	-0.000	0.003	0.017

*Red entries are triggered by abs(entry) > (0.02 0.02 0.02 0.02 0.03) in (u g r i z)
The table above lists the photometric zeropoint corrections
required to make the median principal colors (for all fields in
a camera column) to be 0 (assuming that errors in gri add up to 0)

	Mean Values for All Columns
QUANTITY	u	g	r	i	z
Sky: RMS	0.004	0.002	0.003	0.004	0.005
Sky: Max Dev	0.013	0.006	0.017	0.017	0.025
m(apert7)-m(psf): Max Dev	0.138*	0.073*	0.044	0.050	0.080
m(apert7)-m(psf): Med Off	0.020*	0.005	0.001	0.001	0.007
m(apert7)-m(psf): RMS	0.019	0.011	0.008	0.009	0.014
m(mod)-m(psf): Max Dev	0.061	0.052*	0.037	0.031	0.030
m(mod)-m(psf): Med Off	0.002	0.006	0.004	0.003	0.004
m(mod)-m(psf): RMS	0.010	0.009	0.007	0.005	0.005

Click here for expanded tables with links to plots.

Relative Astrometry, mean values for 6 columns: