  The low energy part of the FAST linear accelerator based on 1.3 GHz
superconducting RF cavities was successfully commissioned. During
commissioning, beam based model dependent methods were used to correct linear
lattice and trajectory. Lattice correction algorithm is based on analysis of
beam shape from profile monitors and trajectory responses to dipole correctors.
Trajectory responses to field gradient variations in quadrupoles and phase
variations in superconducting RF cavities were used to correct bunch offsets in
quadrupoles and accelerating cavities relative to their magnetic axes. Details
of used methods and experimental results are presented.
