Chapter 6:
WFC3-IR Error Sources

6.1 WFC3-IR Error Source Checklist

Checklist

6.2 WFC3 Bias Correction

6.3 WFC3 Dark Current and Banding

6.3.1 Dark Current Subtraction

6.3.2 Banding

Behavior

Mitigation

6.4 Blobs

6.5 Detector Nonlinearity Issues

6.5.1 Nonlinearity Calibrations

6.5.2 Non-Zero Zeroth Read Correction for Bright Sources

6.6 Count Rate Non-Linearity

6.7 Flat-Fielding

6.7.1 Ground Flats (P-flats)

6.7.2 On-orbit L-Flats

6.7.3 Pipeline Flats

6.7.4 Sky Flats

6.8 Pixel Defects and Bad Imaging Regions

6.8.1 Bad Pixels

6.8.2 Non-nominal Detector Regions

6.8.3 Dead Pixels

6.8.4 Bad Zeroth Read Pixels

6.8.5 Unstable Pixels

6.8.6 Snowballs

6.9 Image Persistence

6.9.1 Finding Persistence

6.9.2 Mitigating effects of Persistence

6.10 Scattered Earthlight