Chapter 3:
WFPC2 Calibration
3.1 Data Processing Pipelines
3.2 Data Processing Steps
3.2.1 Calibration of WFPC2 Images
3.3 Standard Pipeline Calibration
3.3.1 Calibration Files
3.3.2 Calibration Steps
3.4 Recalibration
3.4.1 Why and When to Re-retrieve data through OTFR
3.4.2 Running calwp2 manually
3.5 Improving the Pipeline Calibration
3.5.1 Warm Pixels
3.5.2 Alternate Flatfields
3.5.3 Removing Cosmic Rays from Co-aligned Images
3.5.4 Charge Traps
This chapter discusses the processing and calibration of WFPC2 data, the routine processing that must be performed before detailed data analysis can commence. We begin by describing the pipeline calibration that occurs before the data are delivered to the observer, then detail possible reasons to refine and enhance the routine calibration and the various options available to do so.
