WFC3 IR Dark Monitor
Abstract
This program acquires a variety of WFC3/IR darks to support the removal and study of dark current. Similar to previous IR dark monitor programs, about a quarter of the orbits are used to periodically obtain SPARS200/full-frame dark observations. These long observations are used to monitor trends in the bad pixels (hot, unstable, or dead), zeroth read level, and dark current. The remaining orbits collect dark ramps for generating stacked IR dark calibration files for use by the MAST pipeline. The ramps will be collected for each observing mode at a cadence roughly scaled with the newness of the observing mode as well as its popularity in approved 2018/2019 proposals. This builds on the earlier program 15578 (cy 26).
- Publication:
-
HST Proposal
- Pub Date:
- June 2019
- Bibcode:
- 2019hst..prop15723R