Performance of the K-band multi-object spectrograph (KMOS) on the ESO VLT

KMOS is a multi-object near-infrared integral field spectrograph built by a consortium of UK and German institutes for the ESO Paranal Observatory. We report on the on-sky performance verification of KMOS measured during three commissioning runs on the ESO VLT in 2012/13 and some of the early science results.