  The single mirror small-size telescope (SST-1M) is one of the telescope
projects being proposed for the Cherenkov Telescope Array observatory by a
sub-consortium of Polish and Swiss institutions. The SST-1M prototype structure
is currently being constructed at the Institute of Nuclear Physics in Cracow,
Poland, while the camera will be assembled at the University of Geneva,
Switzerland. This prototype enables measurements of parameters having a
decisive influence on the telescope performance. We present results of
numerical simulations of the SST-1M performance based on such measurements. The
telescope effective area, the expected trigger rates and the optical point
spread function are calculated.
