Photometry Diagnostics for m31_u2lg02

Frame list, with derived and commanded shifts

dataset	filter	exptime	derived dx	derived dy	header dx	header dy	delta dx	delta dy
u2lg0201t	F555W	500.00	0.00	0.00	0.00	0.00	0.00	0.00
u2lg0202t	F555W	300.00	0.29	0.01	0.51	0.00	-0.22	0.01
u2lg0203t	F555W	300.00	-0.09	0.31	0.00	0.51	-0.09	-0.20
u2lg0204t	F555W	300.00	0.25	0.24	0.51	0.51	-0.26	-0.27
u2lg0209t	F555W	300.00	0.07	0.05	0.00	0.00	0.07	0.05
u2lg020at	F555W	500.00	0.05	0.05	0.00	0.00	0.05	0.05
u2lg0205t	F814W	500.00	0.04	-0.02	0.00	0.00	0.04	-0.02
u2lg0206t	F814W	300.00	0.35	0.00	0.51	0.00	-0.16	0.00
u2lg0207t	F814W	300.00	-0.04	0.35	0.00	0.51	-0.04	-0.16
u2lg0208t	F814W	300.00	0.26	0.36	0.51	0.51	-0.25	-0.15
u2lg020bt	F814W	300.00	0.06	0.05	0.00	0.00	0.06	0.05
u2lg020ct	F814W	500.00	0.02	0.06	0.00	0.00	0.02	0.06
u2lg020dt	F300W	500.00	-0.23	-0.11	0.00	0.00	-0.23	-0.11
u2lg020et	F300W	500.00	-0.23	-0.11	0.00	0.00	-0.23	-0.11
u2lg020ft	F300W	500.00	-0.45	-0.05	0.00	0.00	-0.45	-0.05
u2lg020gt	F300W	500.00	-0.51	-0.03	0.00	0.00	-0.51	-0.03
u2lg020ht	F300W	500.00	-0.13	-0.09	0.00	0.00	-0.13	-0.09
u2lg020it	F300W	500.00	-0.18	-0.15	0.00	0.00	-0.18	-0.15

Mosaic images

F555W	F814W	F300W

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
f300w

CHI vs. magnitude diagrams

	All chips	PC	WF2	WF3	WF4
f555w
f814w
f300w

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