GPC1 Reference Catalog

Reductions

Reduction	Date	Reference Catalog	Static Sky Photometry	Notes
SAS2.123.rerun20111129	2011-11-30	Synth	Single-Filter, PSF-stats only	Consistent re-reduction with synthetic catalog.
czw.SASg.bkg	2011-12-13	Synth	none	Includes improved PATTERN.ROW/PATTERN.CELL choices. Only available in g filter. (not in PSPS)
czw.SAS.continuity	2012-02-29	Synth	5-band, forced photometry + extended source analysis	Includes continuity correction.
czw.SAStest	2012-03-30	PS1.REF.20120325	5-band, etc.	Includes Noisemap correction.
SAStest.v4	2012-05-10	PS1.REF.20120505	5-band, etc.	Includes boosted noisemap, improved ghost model, improved reference catalog
SAStest.v5	2012-05-31	PS1.REF.20120524	5-band, etc.	Includes improved pshot+psphotStack (+ details), improved reference catalog for bright sources and ghost model

Key

Each plot shows the histogram of the previous reductions, indexed by the box width and the pattern used to fill the box. The SAStest (which uses the new reference catalog) is consistently plotted in blue, whereas all previous reductions are plotted in a color representing the filter:

Color	Filter
Green	g.00000
Red	r.00000
Purple	i.00000
Black	z.00000
Brown	y.00000

Statistics

Filter	Reduction	Zeropoint	Zeropoint Sigma	Sigma RA
g.00000	SAS2.123.rerun20111129	24.4896 +/- 0.0703976	0.0093078 +/- 0.0063013	0.157016 +/- 0.00889786
	czw.SASg.bkg	24.4900 +/- 0.0702534	0.0095896 +/- 0.0063863	0.156969 +/- 0.00903421
	czw.SAS.continuity	24.4893 +/- 0.0703734	0.0095073 +/- 0.0060756	0.156860 +/- 0.008981
	czw.SAStest	24.4345 +/- 0.0085146	0.0360338 +/- 0.0038688	0.028311 +/- 0.00397256
r.00000	SAS2.123.rerun20111129	24.7800 +/- 0.0819525	0.0220368 +/- 0.0735258	0.178928 +/- 0.00921915
	czw.SAS.continuity	24.7795 +/- 0.0798221	0.0209898 +/- 0.0586834	0.178670 +/- 0.00921215
	czw.SAStest	24.6659 +/- 0.0064320	0.0279179 +/- 0.0033903	0.022197 +/- 0.00405199
i.00000	SAS2.123.rerun20111129	24.7372 +/- 0.166531	0.0196903 +/- 0.0550734	0.182216 +/- 0.00952142
	czw.SAS.continuity	24.7371 +/- 0.16596	0.0182169 +/- 0.0388831	0.182158 +/- 0.00952476
	czw.SAStest	24.5720 +/- 0.0047154	0.0278085 +/- 0.0023871	0.020658 +/- 0.00409838
z.00000	SAS2.123.rerun20111129	24.3912 +/- 0.0719598	0.0123021 +/- 0.0341089	0.179379 +/- 0.00976284
	czw.SAS.continuity	24.3914 +/- 0.0717808	0.0123326 +/- 0.0332356	0.179267 +/- 0.00976036
	czw.SAStest	24.2326 +/- 0.0062009	0.0283726 +/- 0.0041190	0.022693 +/- 0.00420167
y.00000	SAS2.123.rerun20111129	23.4098 +/- 0.0478044	0.0112222 +/- 0.0219299	0.175774 +/- 0.0103804
	czw.SAS.continuity	23.4100 +/- 0.0486761	0.0094085 +/- 0.0236608	0.175604 +/- 0.0104095
	czw.SAStest	23.2532 +/- 0.0083929	0.0368878 +/- 0.003583	0.025637 +/- 0.00405634

Zeropoints

Zeropoint Sigma

RA

Dec