A 4th-magnitude star saturates a ~150-pixel-diameter region in Roman's WFI after 170 s, and persistence from deeply saturated point sources decays to detector background within ~20 minutes.
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Nancy Grace Roman Space Telescope Wide Field Instrument: Bright Point Source Saturation Response and Persistence Properties from Thermal-Vacuum Testing
A 4th-magnitude star saturates a ~150-pixel-diameter region in Roman's WFI after 170 s, and persistence from deeply saturated point sources decays to detector background within ~20 minutes.