QA for run 3478 (rerun 40, strip 14N), fields: 74-188

The Estimates of Photometric Zeropoint Errors:

Zeropoint corrections to flatten background

	Zeropoint Corrections to Flatten Background
band:	u	g	r	i	z
Col. 1	-0.010	-0.011	0.000	-0.004	0.011
Col. 2	-0.014	-0.011	0.010	-0.004	0.011
Col. 3	0.007	0.005	0.001	-0.003	0.014
Col. 4	0.024*	0.008	0.007	0.003	-0.003
Col. 5	-0.020	-0.005	-0.003	0.001	-0.017
Col. 6	0.012	0.009	-0.007	-0.002	-0.004

*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	-0.031*	-0.017	0.004	0.013	-0.002
Col. 2	-0.006	-0.007	0.001	0.006	-0.016
Col. 3	-0.023*	-0.014	0.003	0.011	0.010
Col. 4	0.004	-0.009	0.005	0.004	0.014
Col. 5	-0.001	-0.008	0.003	0.006	0.018
Col. 6	-0.034*	-0.019	0.007	0.012	0.010

*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	0.002	0.002	0.002	0.002	0.002
Sky: Max Dev	0.010	0.006	0.004	0.007	0.007
m(apert7)-m(psf): Max Dev	0.090	0.067*	0.028	0.031	0.094*
m(apert7)-m(psf): Med Off	0.018*	0.006	0.001	0.005	0.006
m(apert7)-m(psf): RMS	0.011	0.008	0.006	0.007	0.014
m(mod)-m(psf): Max Dev	0.034	0.042	0.023	0.030	0.020
m(mod)-m(psf): Med Off	0.002	0.006	0.003	0.005	0.004
m(mod)-m(psf): RMS	0.006	0.005	0.005	0.004	0.004

Click here for expanded tables with links to plots.

Relative Astrometry, mean values for 6 columns: