Night report 2025-09-21

Night report 2025/09/21

Observers: Anwesha Sahu, Ben Warwick (University of Warwick)

Support:  Miika Pursiainen, Ben Godson, Mark Magee, Joe Lyman, Tom Killestein

TAT: Jesper Sollerman, Xinyue Sheng, Lluís Galbany

Start (23:54 UT): humidity 41%, seeing 1.8", wind   4.8m/s. 

Middle (06:05 UT): humidity 13%, seeing 1.4", wind   10.7m/s.

End ( 09:56 UT):  humidity 6%, seeing 2.2", wind   12.8m/s.

Calibrations: Bias, arcs, taken in the evening/morning.