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New GMOS-N bias features

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The GMOS-N detector has shown new bias features since an uncontrolled warm-up of the detector on February 26, 2022 . These features consist of a narrow bright column on amplifier 5, and broader bright columns on amplifiers 7 and 12. As a first measure to address this new issue, a full thermal cycle of the detector is being performed starting from today. GMOS will be unavailable for the next couple of nights until the thermal cycle is complete. PIs with data observed since February 27 (UT) are advised to reduce their data with the biases taken between UT dates 20220228 and 20220302.

New GMOS-N bias feature

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