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The first LHC pp collisions at centre-of-mass energies of 0.9 and 2.36 TeVwere recorded by the CMS detector in December 2009. The trajectories of chargedparticles produced in the collisions were reconstructed using the all-siliconTracker and their momenta were measured in the 3.8 T axial magnetic field.Results from the Tracker commissioning are presented including studies oftiming, efficiency, signal-to-noise, resolution, and ionization energy.Reconstructed tracks are used to benchmark the performance in terms of trackand vertex resolutions, reconstruction of decays, estimation of ionizationenergy loss, as well as identification of photon conversions, nuclearinteractions, and heavy-flavour decays.

CMS Tracking Performance Results from early LHC Operation