Night report 2024-12-27

Night Report 2024-12-27

Observers: Christian Vassallo, Niilo Koivisto 

Support:  Christina Humina, Timo Kravtsov, Niko Pyykkinen

TAT:  Michael Fulton, Sara Faris, Jacco Terwel

Start (00:43 UT): Humidity: 54%, Temperature:  12.6 Celsius, Wind speed:  2.5 m/s , Seeing: 2.2 

Middle (04:30 UT): Humidity 50%, Temperature:  13.4 Celsius, Wind speed: 3.3 m/s , Seeing: 1.0

End (08:08 UT): Humidity 50%, Temperature:  13.4 Celsius, Wind speed: 3.3 m/s, Seeing: 0.9

Calibrations: Afternoon calibrations:  bias, arcs in gr11, g13, gr16, skyflats gri. Morning calibrations: arcs in gr11, g13, gr16

Comments:  Variable seeing between 1-2 arcsec during first hours of the night and later around 1 arcsec. Some thin clouds at the beginning, but later clear.