16395

This UVIS daily monitor program obtains full-frame comma four-amp readout bias and dark frames. All exposures are post-flashed at a 20 e--pixel level a separate program (16397) will be used to obtain un-flashed UVIS darks to monitor non-postflashed behavior. The biases and darks from this proposal comma in addition to those that are obtained as part of the WFC3-UVIS anneal program (16414) comma will be used to create superbias and superdark calibration reference files for the Calibration Reference Data System (CRDS) and monitor the evolution of hot pixels comma dark current comma bias level and readnoise. This is the second of three daily monitoring programs of Cycle 28 (the others are 16394 and 16396). It covers March 15th comma 2021 through July 14th comma 2021. The combination of the three programs provides full coverage of Cycle 28.

本紫外可见通道（UVIS）日常监测计划将获取全画幅四放大器读出的偏置帧与暗场帧。所有曝光均以20电子每像素的参数进行后闪光处理；另有编号为16397的独立观测计划，将用于获取未经过后闪光处理的UVIS暗场帧，以监测未经历后闪光的器件运行特性。本计划获取的偏置帧与暗场帧，连同宽视场相机3-紫外可见通道（WFC3-UVIS）退火计划（16414）所获取的相关数据，将用于为校准参考数据系统（Calibration Reference Data System，CRDS）生成超偏置与超暗场校准参考文件，并监测热像素、暗电流、偏置电平与读出噪声的演化情况。本计划是第28观测周期三项日常监测计划中的第二项（其余两项分别为16394与16396）。该计划的执行时段为2021年3月15日至2021年7月14日。三项计划的联合观测将实现第28观测周期的全时段覆盖。