Аннотация:The report aim is to explain the destruction of a large cosmic body from the simple two-stage calculations using the observational data. At the fist stage the number of fragments determined regarding of change of light intensity. Using the statistical strength theory of Weibull the path length and time of luminescence of the fragments was determined. A model of sudden
disappearance in the second stage was constructed. We estimate the mean free paths to vaporation for small particles suggesting an explosive outbreak in the final stage.