Photometry Diagnostics for ngc55_u63q01

Frame list, with derived and commanded shifts

dataset	filter	exptime	derived dx	derived dy	header dx	header dy	delta dx	delta dy
u63q0101r	F555W	900.00	0.00	0.00	0.00	0.00	0.00	0.00
u63q0102r	F555W	800.00	-0.01	0.04	0.00	0.00	-0.01	0.04
u63q0103r	F555W	800.00	0.00	0.03	0.00	0.00	0.00	0.03
u63q0107r	F814W	800.00	0.04	0.04	0.00	0.00	0.04	0.04
u63q0108r	F814W	800.00	0.05	0.06	0.00	0.00	0.05	0.06
u63q0109r	F814W	800.00	0.07	0.10	0.00	0.00	0.07	0.10
u63q0104r	F255W	900.00	0.00	0.00	0.00	0.00	0.00	0.00
u63q0105r	F255W	800.00	0.00	0.00	0.00	0.00	0.00	0.00
u63q0106r	F255W	800.00	-0.02	0.01	0.00	0.00	-0.02	0.01

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