Night report 2025-08-09

Night report 2025/08/09

Observers: Joyce Naomi Dominique van Dalen  and  Daniele Bjørn Malesani.

Support:  Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter.

TAT: Lluis Galbany, Tanja Petrushevska, Shubham Srivastav.

Start (22:55 UT): humidity 13.0%, temperature 11.1 ºC, wind speed 5.9 m/s, seeing 1.5'', airmass 1.04.

Middle (07:20 UT): humidity 8.0%, temperature 11.7 ºC, wind speed 6.7 m/s, seeing 1.8'', airmass 1.63 

End (10:00 UT): humidity 8.0%, temperature 12.1 ºC, wind speed 8.4 m/s, seeing 2.0'', airmass 1.4 

Comments: Some thin clouds during the day and at the start of the night. Telescope closed at 00:48 UT due to clouds and reopened at 7:17 UT.

Calibrations: bias and arcs were taken in the afternoon. Bias, arcs, and flats (will be) taken in the morning.