Investigation of the Ozerki meteoroid parameters
Anna Kartashova, Alexander Golubaev, Alona Mozgova, Ivan Chuvashov, Galina Bolgova, Dmitry Glazachev, Vladimir Efremov
Planetary and Space Science
In Press, Journal Pre-proof, Available online 12 July 2020
• The method of the determination of meteoroid parameters was presented.
• The Ozerki meteoroid properties were analyzed by various observation data.
• Comparison with other observations in the mass, energy and diameter calculations.”
“In the morning of June 21, 2018 (1:16 Universal Time (UTC)) the space body entered the Earth atmosphere in the Lipetsk region, Russia. This event was detected by a number of registration systems in cars, satellite observations of bolide light curve and subsequent dust trail. The videos, photos, satellite data allow us to calculate the trajectory and the orbit of the Ozerki bolide. The atmospheric entry velocity is 14. 9 ± 1 km/s. The height of the depression point is 32.8 ± 0.9 km and that of the maximum brightness is 27.2 ± 0.9 km. The pre-atmospheric orbit of the Ozerki meteoroid was also calculated: q = 0.67 ± 0.04 AU, a = 0.84 ± 0.02 AU, e = 0.199 ± 0.030, i = 18.44° ±3.05°, Ω = 89.6561° and ω = 335.29° ±5.15°. The geocentric radiant position is RA = 307.515°±3 and DEC = 43.107°±3. The found material was called Ozerki meteorite and is classified as an ordinary chondrite (L6). The estimated: mass of the meteoroid is 94 ± 20 tons, the energy is 2.5 ± 0.54 kt TNT, diameter is 3.65 ± 0.45 m.”