16543

This activity measures the baseline performance and commandability of the CCD subsystem. Only primary amplifier D is used. Bias and Flat Field exposures are taken in order to measure bias level comma read noise comma CTE comma and gain. Numerous bias frames are taken to permit construction of d_commasuperbiasd_comma frames in which the effects of read noise have been rendered negligible. Full frame observations are made. Bias frames are taken in subarray readouts to check the bias level for ACQ and ACQ-PEAK observations. All exposures are internals.

本项实验旨在测量CCD子系统的基线性能与可操控性。仅使用主放大器D。通过采集偏置曝光和平场曝光，以测量偏置电平、读出噪声、电荷转移效率（Charge Transfer Efficiency，CTE）及增益。采集大量偏置帧，以构建超偏置（superbias）帧——其中读出噪声的影响可忽略不计。进行全帧观测。在子阵列读出模式下采集偏置帧，以检查ACQ和ACQ-PEAK观测的偏置电平。所有曝光均为内部曝光。