PF061018 Bukienka - meteorite dropping fireball

On the night 2018 October 5/6, at 00h26m51s UT, the fireball with maximum absolute magnitude of -9.7 +/- 0.5 appeared over southern Poland. The precise orbit and atmospheric trajectory of the event are presented, based on the data collected by ten video stations of the Polish Fireball Network (PFN). The PF061018 Bukienka fireball entered the Earth's atmosphere with the velocity of 18.2 +/- 0.2 km/s and started to shine at a height of 86.0 +/- 0.1 km. Clear deceleration started after the first five seconds of the flight, and the terminal velocity of the meteor was only 4.9 +/- 0.2 km/s at a height of 30.8 +/- 0.1 km. Such a low value of the terminal velocity indicates that ablation process stopped and small fragments with the total mass of around 50-150 g could survive the atmospheric passage and cause fall of the meteorites. The predicted area of possible meteorite impact is computed and it is located between Taraska and Kotuszow villages less than 20 km from Piotrkow Trybunalski town.