Operational experience with the CMS pixel detectors

The Pixel Detectors of the Compact Muon Solenoid (CMS) experiment were installed and commissioned in the Summer and Fall of 2008, removed, repaired and reinstalled in the Spring of 2009 and recommissioned in the Summer of 2009 in preparation for beam at the Large Hadron Collider (LHC). In this note we present pixel detector operating parameters, vertexing performance, and long-lived particle mass reconstruction using data collected during the Fall of 2009 with 450 GeV/c and 1.18 TeV/c circulating proton beams.