Night report 2025-04-06

Night report 2025/04/06

Observers: Chris Duffy, Melzie Ghendrih (Lancaster University)

Support:  Georgios Dimitriadis, Sam Shilling, Andrew Milligan, Mathew Smith (Lancaster University)

TAT: Lluís Galbany (ICE-CSIC), Amit Kumar (University of Warwick), Priscila J. Pessi (Stockholm University)

Start: 23:35UT | Humidity: 43.1 % | Wind speed: 5.90 m/s | Seeing: 1.6

End: 04:46 UT | Humidity: 28.0 % | Wind speed: 12.4 m/s | Seeing: ???

Afternoon Calibrations:

Darks, arcs and dome flats done in the afternoon

Sky flats done during twilight (filters: grz). Unable to complete final 2 flats for z band

Notes

23:25UT -- Switched to slit 1.5 following standard seeing measurement

03:00UT -- Shutter failure occured. Stopped operations.

03:50UT -- Shutter repair attempted. Trying to resume operations. 

04:25UT -- Shutter repair unsucessful. Only opening for small fraction of commanded exposure time, curerntly impossible to do acquistion images.

04:46 UT -- Night aborted