WFC3 Data Handbook V. 4.0

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Chapter 7:
WFC3/IR Sources of Error

7.1 WFC3/IR Error Source Checklist

7.2 WFC3/IR Bias Correction

7.3 WFC3 Dark Current and Banding

7.3.1 Dark Current Subtraction

7.3.2 Banding

7.4 Blobs

7.5 Detector Nonlinearity Issues

7.5.1 Nonlinearity Calibrations

7.5.2 Non-Zero Zeroth Read Correction for Bright Sources

7.6 Count Rate Non-Linearity

7.7 IR Flat Fields

7.7.1 Ground Flats (P-flats)

7.7.2 On-orbit Test of the Ground Flats.

7.7.3 On-orbit L-flats from Sky Observations.

7.7.4 Pipeline Flats

7.8 Pixel Defects and Bad Imaging Regions

7.8.1 Bad Pixels

7.8.2 Non-nominal Detector Regions

7.8.3 Dead Pixels

7.8.4 Bad Zeroth Read Pixels

7.8.5 Unstable Pixels

7.8.6 Snowballs

7.9 Time Variable Background Contamination

7.9.1 Scattered Earthlight

7.9.2 Metastable Helium 1.083 μm Emission Line

7.9.3 Mitigation Strategies

7.10 References