Instrument Science Report WFPC2 97-07:
WFPC2 Electronics Verification
M. Stiavelli and M. Mutchler
July 24, 1997
The results of calibration proposal 6942 aimed at verifying the linearity of WFPC2 for various exposure times and operating modes are described and analyzed. For count rates exceeding 0.5DN/s, WFPC2 appears to be linear to better than 0.5%. Results at very low count levels are less conclusive given the low signal-to-noise.