16567

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 (16569) 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 (16564) 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 29 (the others are 16566 and 16568). It covers March 18 through July 19 comma 2022. The combination of the three programs provides full coverage of Cycle 29.

本紫外可见成像光谱仪（UVIS）日常监测项目采用四安培读出模式获取全帧偏置帧与暗场帧。所有曝光均以每像素20电子的剂量进行后闪光处理；另有编号为16569的独立项目将获取未经过后闪光处理的UVIS暗场帧，用于监测非后闪光工况下的器件特性。本项目获取的偏置帧与暗场帧，连同WFC3-UVIS退火项目（16564）所获取的同类数据，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定标参考文件，并监测热像素、暗电流、偏置电平与读出噪声的演化情况。本项目为第29个观测周期（Cycle 29）的三项日常监测项目中的第二项，其余两项分别为编号16566与16568的项目。本项目执行时段为2022年3月18日至7月19日。三项项目的联合观测将实现第29个观测周期的全时段覆盖。