Photometry Diagnostics for ngc6822_u5ch03



Frame list, with derived and commanded shifts
dataset filter exptime derived dx derived dy header dx header dy delta dx delta dy
u5ch0303r F555W 600.00 0.00 0.00 0.00 0.00 0.00 0.00
u5ch0304r F555W 800.00 -0.08 0.08 0.00 0.00 -0.08 0.08
u5ch0305r F814W 400.00 -0.01 0.15 0.00 0.00 -0.01 0.15
u5ch0306r F814W 600.00 0.00 0.12 0.00 0.00 0.00 0.12
u5ch0301r F439W 600.00 -0.28 -0.20 0.00 0.00 -0.28 -0.20
u5ch0302r F439W 700.00 -0.27 -0.15 0.00 0.00 -0.27 -0.15


Mosaic images

F555W F814W F439W


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
f439w


CHI vs. magnitude diagrams

All chips
PC
WF2
WF3
WF4
f555w
f814w
f439w


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
F555W F814W F439W

Aperture correction for each frame/chip, showing individual stars
All chips
PC
WF2
WF3
WF4
f555w
f555w
f814w
f439w


PSF vs. aperture photometry

All chips
PC
WF2
WF3
WF4
f555w
f814w
f439w


Artificial star diagrams


Completeness as a function of input magnitude
PSF photometry Aperture photometry

Recovered mag-input mag as a function of input mag (PSF photometry)
All chips
PC
WF2
WF3
WF4
f555w
f814w
f439w

Average recovered magnitude as function of location in CMD (PSF photometry)
All chips
PC
WF2
WF3
WF4