Night report 2024-06-01

Night report 01/06/2024

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: BVRi skyflats

Morning twilight:  

Start: UT 00:30, humidity 13%, temperature 14.9C, wind 3.4 m/s. Clear sky, seeing around 1 arcsecond.

Mid: UT 05:00, humidity 12.8%, temperature 14.8C, wind 4 m/s. Clear sky, seeing 1.1 arcseconds.

End: UT 09:00, humidity 12%, temperature 14.3C, wind 6.4 m/s. Clear sky, seeing 1.5 arcseconds.

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