Night report 2021-08-11

Observers: Ben Gompertz, Matt Nicholl, Evan Ridley

Support: Sara Muñoz, María Delgado, Raúl Gonzalez, Lluís Galbany

TAT: Shubham Srivastav, Stefan Taubenberger, Priscila Pessi

Calibrations:

Afternoon: All EFOSC calibrations

Evening: Sky flats griz

Weather:

Start: humidity ~ 25%, wind ~ 8m/s, seeing 0.8 "

Middle: humidity ~ 18%, wind ~ 10m/s, seeing ~ 1.2"

End: humidity ~ 22%, wind ~ 10m/s, seeing ~ 1.4"

Comments (times in UT):

DIMM reporting 1.5" seeing at start of night, but image quality appears much better

01.30 - some clouds appearing

02.00 - closed due to clouds

03.50 - clouds appear to be clearing a bit, but still closed

04.10 - clouds increasing again :(

05.40 - dome reopened, observations resumed.