ON THE AIRBURST OF LARGE METEOROIDS IN THE EARTHS ATMOSPHERE - THE LUGO BOLIDE - REANALYSIS OF A CASE-STUDY

On January 19, 1993, a very bright bolide (peak magnitude -23) crossed the sky of Northern Italy, ending with an explosion approximately ove r the town of Lugo (Emilia Romagna, Italy). The explosion (14 kton of energy) generated shock waves which were recorded by six local seismic stations. A reanalysis of the available data leads us to the hypothes is that the meteoroid was a porous carbonaceous chondrite, somehow sim ilar in constitution to the asteroid 253 Mathilde.