Photometry Diagnostics for ngc55_u63q03

Frame list, with derived and commanded shifts

dataset	filter	exptime	derived dx	derived dy	header dx	header dy	delta dx	delta dy
u63q0301r	F555W	900.00	0.00	0.00	0.00	0.00	0.00	0.00
u63q0302r	F555W	800.00	0.00	-0.06	0.00	0.00	0.00	-0.06
u63q0303r	F555W	800.00	0.00	-0.09	0.00	0.00	0.00	-0.09
u63q0307r	F814W	800.00	0.07	-0.02	0.00	0.00	0.07	-0.02
u63q0308m	F814W	800.00	0.08	-0.10	0.00	0.00	0.08	-0.10
u63q0309r	F814W	800.00	0.06	-0.10	0.00	0.00	0.06	-0.10
u63q0304r	F255W	900.00	-0.94	0.91	0.00	0.00	-0.94	0.91
u63q0305r	F255W	800.00	-1.01	0.55	0.00	0.00	-1.01	0.55
u63q0306r	F255W	800.00	-0.86	0.34	0.00	0.00	-0.86	0.34

Mosaic images

F555W	F814W	F255W

HSTPHOT command log

Color magnitude diagrams

	All chips	PC	WF2	WF3	WF4
PSF
Aperture

Error vs. magnitude diagrams

	All chips	PC	WF2	WF3	WF4
f555w
f814w
f255w

CHI vs. magnitude diagrams

	All chips	PC	WF2	WF3	WF4
f555w
f814w
f255w

Aperture corrections

Aperture corrections compared with those of entire database (green points are this field)
If aperture corrections appear to be significant outliers in the global trend, you should be cautious about their quality, and consider that the zeropoints of photometry and colors are more suspect