Core Concepts
Detector read noise from the Nancy Grace Roman Space Telescope will require correction to ensure accurate weak lensing measurements, especially for faint galaxies ( fainter than mAB ≃ 24).
Stats
The expected sky background observing in the H band at high ecliptic latitude is 0.38 e pix−1 s−1.
Roman will have a downlink rate of 275 Mbps.
The Roman WFI SCAs will be read out in a 50-frame sequence.
The average gain from the Roman detectors is 1.458.
The K band has an estimated background count rate of 4.65 e pix−1 s−1.
1.15% of pixels are masked out due to various factors like non-responsive pixels, hot pixels, etc.