Night report 2020-10-25

Observers:  Mariusz Gromadzki, Nada Ihanec (Warsaw)

Support:      Thomas Wevers (ESO)

TAT:              C. Gutierrez (Turku), S. Taubenberger (MPA Garching), T.-W. Chen (Stockholm), S. Schulze (Weizmann)

EFOSC2 Calibrations:

Spectroscopic flats & arcs dome Gr#11, Gr#16 with filters Free, GG495, OG530 and slit: 1.0 and 1.5


Sky flats


Start:  Humidity   33, wind speed  7.5   m/s

Middle: Humidity 17 , wind speed 9 m/s

End:    Humidity  6, wind speed 5 m/s  seeing 0.7

Comments: High wind speed in the beginning of the night, up to 12 m/s