  Photometric observations of asteroid (596) Scheila were obtained during and
after its 2010 outburst. The estimated radius of the body (spherical
approximation of the asteroidal body) was 51.2 km and 50.67 km for different
methods. The ejected dust mass from the asteroid ranged from 2.5*10e7 to
3.4*10^7 kg for different methods. An impact mechanism for triggering Scheila's
activity is discussed. A few days before the impact, Scheila passed through the
corridors of two potential cometary streams.
