Night report 2024-12-20

Night Report 2024-12-20

Observers:  Niilo Koivisto, Christian Vassallo

Support: Christina Humina, Timo Kravtsov, Niko Pyykkinen

TAT: Lluís Galbany, Shubham Srivastav, Amit Kumar

Start (01:14): Humidity: 42 %, Temperature: 15 Celsius, Wind speed: 1.1 m/s , Seeing: 0.94 

Middle (04:40): Humidity 32 %, Temperature: 16 Celsius, Wind speed: 2.8 m/s , Seeing: 0.5 

End (06:51): Humidity 34 %, Temperature: 15.8 Celsius, Wind speed: 4 m/s, Seeing: 0.7 

Calibrations: Afternoon calibrations:  bias, spec flats, arcs in gr11, g13, gr16, gr18, gr20. Morning calibrations: arcs in gr11, g13, gr16

Comments: Seeing around 1 or better all night. Great observing weather.