Night report 2024-05-31

Night report 31/05/2024

Observers: Katja Matilainen, Christian Vassallo, Timo Kravtsov

Support: Thomas Killestein, Panos Charalampopoulos, Niilo Koivisto, Hanin Kuncarayakti

TAT: Andrea Reguitti, Lluís Galbany, Tanja Petrushevska

Calibrations:
Afternoon: bias, PESSTO_calib (arcs)

Evening twilight: grz skyflats

Morning twilight:  

Start: UT 23:30: humidity 10.5%, temperature 14.7C, wind 4.5 m/s. Clear sky, seeing around 1.4 arcseconds.

Mid: UT 03:30: humidity 11.5%, temperature 13.4C, wind 8.3 m/s. Clear sky, seeing around 1.2 arcseconds.

End: UT 08:00:, humidity 11%, temperature 14C, wind 9.4 m/s. Clear sky, seeing around 1.5 arcseconds.

Comments: DIMM seeing monitor not working; seeing estimated from imaging.