Night report 2021-07-31

Observers: Javier, Lluís Galbany

Support: Lluís Galbany

TAT: Janet, Shubham

EFOSC Calibrations:

UBVRi flats evening

SOFI Calibrations:

JHK flats

Weather:

Start: humidity ~17%, wind ~4.7m/s, seeing ~1.0"

Middle: humidity ?, wind ?, seeing ?

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

Comments (times in UT):

problem with the shutter at the beginning of the night