Instrument Science Report WFPC2 97-04:
Properties of WFPC2 Bias Frames
C. P. O'Dea, S. Gonzaga, M. McMaster, I. Heyer, J. C. Hsu, S. Baggett, K. Rudloff
June 3, 1997
We report on the basic on-orbit characteristics of the biases and the overscan region, and also discuss the superbiases. We then investigate the jumps in the bias level, and present the procedure for creation of the current set of pipeline superbiases.