AOF – first on-sky performance of the GALACSI GLAO mode (or how to close 10 loops in less than 5 minutes)

GALACSI is an AO module that equips the VLT Yepun, making use of the recently installed Deformable Secondary Mirror and 4 Laser Guide Star Facility. In its Wide Field Mode, it feeds the MUSE instrument with a GLAO corrected FoV in the visible of 1 arcmin square. This paper will present the results of the first commissionings that took place from March to June 2017: Acquisition and Observation, taking over the telescope Active control and AO performance vs. Turbulence conditions.