WFPC2 CTE Characterization
نویسنده
چکیده
The limiting factor of the accuracy of WFPC2 photometry is the CTE loss, which has increased to the level of 50% or more for faint stars at the top of the chips. I describe recent work on characterizing this effect, and provide improved equations for CTE correction. I also examine issues affecting background measurement, which if not done correctly can introduce artificial nonlinearities into photometry.
منابع مشابه
The Charge Transfer Efficiency and Calibration of WFPC 2 Andrew
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