The observing team at Gemini keeps a detailed log of each night's science observing, also noting weather issues, technical faults and any time spent in planned engineering. It is read by Gemini staff early each morning. A summary of the night is written at the end of observing and included at the top of each night log. That summary is posted here, unedited, to give interested users a feel for what we're doing.

Show nightlog summary for the night of:

Mar 22, 2023 GMOS, Flamingos-2 and IGRINS Queue First half of the night lost to weather, then observed several GMOS and F-2 programs in good conditions.
Mar 21, 2023 GMOS, Flamingos-2 and IGRINS Queue Night lost to weather.
Mar 20, 2023 GMOS, Flamingos-2, and IGRINS Queue. Expecting clear sky with variable seeing. Night lost to weather
Mar 19, 2023 GMOS, Flamingos-2 and IGRINS Queue Overall a good observing night with clear sky and variable seeing.
Mar 18, 2023 We will try for the high-priority DD program with F2, and then the rest is GMOS, F2, and IGRINS. Forecast is for lower humidity, and good conditions. The humidity cooperated with us all night. We observed with F2 and IGRINS. Seeing was more variable, and really went high in the last hour of the night. Telescope and systems behaved well, so overall a successful night.
Mar 17, 2023 Assuming the weather will cooperate, we will observe with GMOS, F2, and IGRINS. We waited more than half of the night for the dew point to drop to a safe level. Then we were able to observe with mostly F2 and GMOS. A few minor faults, but otherwise a smooth night.
Mar 16, 2023 Forecast is for clear skies with average-to-poor seeing. We will run a regular GMOS/F2/IGRINS queue tonight. The weather was fairly stable - clear skies, and mostly IQ70 all night. We were able to get one of the high priority DD programs, but unfortunately, a fault with the F2 detector prevented us from getting the IR part. We used only GMOS and IGRINS during the night. We also had some other minor faults through the nigh.
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