Night report 2025-09-19

Night report 2025/09/19

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 (01:13 UT): humidity 17%, seeing 1.8", wind  12.6m/s.  [poor weather at start of night]

Middle (05:24 UT): humidity 25%, seeing 2.6", wind  11.4m/s.

End ( UT): humidity 20%, seeing 2.0", wind  9.3m/s. 

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