Photometry Diagnostics for m31_u2ug01

Frame list, with derived and commanded shifts

dataset	filter	exptime	derived dx	derived dy	header dx	header dy	delta dx	delta dy
u2ug010at	F555W	160.00	0.00	0.00	0.00	0.00	0.00	0.00
u2ug010bt	F555W	500.00	0.04	-0.12	0.00	0.00	0.04	-0.12
u2ug010ct	F555W	500.00	0.05	-0.14	0.00	0.00	0.05	-0.14
u2ug010dt	F555W	500.00	0.10	-0.09	0.00	0.00	0.10	-0.09
u2ug010et	F555W	500.00	0.13	0.10	0.00	0.00	0.13	0.10
u2ug010ft	F555W	160.00	0.00	-0.11	0.00	0.00	0.00	-0.11
u2ug010gt	F555W	500.00	0.04	-0.11	0.00	0.00	0.04	-0.11
u2ug010ht	F555W	500.00	0.06	-0.12	0.00	0.00	0.06	-0.12
u2ug010it	F555W	500.00	0.08	-0.15	0.00	0.00	0.08	-0.15
u2ug010jt	F555W	500.00	0.16	0.12	0.00	0.00	0.16	0.12
u2ug0101t	F814W	160.00	0.06	0.15	0.00	0.00	0.06	0.15
u2ug0102t	F814W	500.00	0.10	0.15	0.00	0.00	0.10	0.15
u2ug0103t	F814W	500.00	0.14	0.09	0.00	0.00	0.14	0.09
u2ug0104t	F814W	500.00	0.27	0.06	0.00	0.00	0.27	0.06
u2ug0105t	F814W	400.00	-0.04	0.18	0.00	0.00	-0.04	0.18
u2ug0106t	F814W	500.00	0.01	0.19	0.00	0.00	0.01	0.19
u2ug0107t	F814W	500.00	0.03	0.20	0.00	0.00	0.03	0.20
u2ug0108t	F814W	500.00	0.03	0.18	0.00	0.00	0.03	0.18
u2ug0109t	F814W	500.00	0.08	0.29	0.00	0.00	0.08	0.29

Mosaic images

F555W	F814W

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

CHI vs. magnitude diagrams

	All chips	PC	WF2	WF3	WF4
f555w
f814w

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