HST Advanced Camera for Surveys Performance in 2025
Abstract
We provide a summary of extrapolations out to the year 2025 of the primary instrument performance metrics of HST's Advanced Camera for Surveys. We discuss the increase in the underlying dark current and the number of hot and warm pixels on the Wide Field Channel (WFC) CCDs. Regarding the steadily degrading charge transfer efficiency (CTE) of the WFC CCDs, time-extrapolated comparisons are made between the pixel-based CTE correction and the CTE photometry correction formula. A simulated WFC image containing all of the effects is compared to images taken at various points in the mission. Estimates are made of how scientific results might be affected. Extrapolated performance metrics for the Solar Blind Channel are also presented.
- Publication:
-
American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23344312A