A comprehensive study of distribution laws for the fragments of Košice meteorite

Gritsevich, Maria; Vinnikov, Vladimir; Kohout, T.; Tóth, Juraj; Peltoniemi, Jouni; Turchak, L. I.; Virtanen, Jenni

doi:10.1111/maps.12252

Cited by 28 publications

(25 citation statements)

References 30 publications

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“…In this paper we present trajectory and orbital data for Annama's progenitor meteoroid obtained from the fireball imagery (Gritsevich et al, 2014a). The fall of Annama meteorite occurred in the remote Kola Peninsula (Russia) close to Finnish border on April 19, 2014 (local time) and the fireball was observed by the Finnish Fireball Network as well as numerous local residents.…”

Section: Introductionmentioning

confidence: 99%

Orbit and dynamic origin of the recently recovered Annama's H5 chondrite

Trigo-Rodríguez

Lyytinen²,

Gritsevich

et al. 2015

Monthly Notices of the Royal Astronomical Society

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We describe the fall of Annama meteorite occurred in the remote Kola Peninsula (Russia) close to Finnish border on April 19, 2014 (local time). The fireball was instrumentally observed by the Finnish Fireball Network. From these observations the strewnfield was computed and two first meteorites were found only a few hundred meters from the predicted landing site on May 29 th and May 30 th 2014, so that the meteorite (an H4-5 chondrite) experienced only minimal terrestrial alteration. The accuracy of the observations allowed a precise geocentric radiant to be obtained, and the heliocentric orbit for the progenitor meteoroid to be calculated. Backward integrations of the orbits of selected near-Earth asteroids and the Annama meteoroid showed that they rapidly diverged so that the Annama meteorites are unlikely related to them. The only exception seems to be the recently discovered 2014UR116 that shows a plausible dynamic relationship. Instead, analysis of the heliocentric orbit of the meteoroid suggests that the delivery of Annama onto an Earth-crossing Apollo type orbit occurred via the 4:1 mean motion resonance with Jupiter or the nu6 secular resonance, dynamic mechanisms that are responsible for delivering to Earth most meteorites studied so far.

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Section: Introductionmentioning

confidence: 99%

Orbit and dynamic origin of the recently recovered Annama's H5 chondrite

Trigo-Rodríguez

Lyytinen²,

Gritsevich

et al. 2015

Monthly Notices of the Royal Astronomical Society

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“…Based on the fragment distribution and fragmentation modelling Košice meteoroid (Gritsevich et al, 2014) may have been composed of two individual bodies.…”

Section: Introductionmentioning

confidence: 99%

Density, porosity and magnetic susceptibility of the Košice meteorite shower and homogeneity of its parent meteoroid

Kohout

Havrila

Tóth

et al. 2014

Planetary and Space Science

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Bulk and grain density, porosity, and magnetic susceptibility of 67 individuals of Košice H chondrite fall were measured. The mean bulk and grain densities were determined to be 3.43 g/cm 3 with standard deviation (s.d.) of 0.11 g/cm 3 and 3.79 g/cm 3 with s.d. 0.07 g/cm 3 , respectively. Porosity is in the range from 4.2 to 16.1%. The logarithm of the apparent magnetic susceptibility (in 10 −9 m 3 /kg) shows narrow distribution from 5.17 to 5.49 with mean value at 5.35 with s.d. 0.08.These results indicate that all studied Košice meteorites are of the same composition down to ∼g scale without presence of foreign (non-H) clasts and are similar to other H chondrites. Košice is thus a homogeneous meteorite fall derived from a homogeneous meteoroid.

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“…Our estimation of the drag effect caused by interaction of the meteor with the Earth's atmosphere shows it is very significant at this altitude and, in particular, it may stimulate meteoroid's break-up in the atmosphere. This conclusion is supported by the large number of Kosice meteorite fragments recovered on the ground (Gritsevich et al, 2014a). NRLMSISE-00, is used.…”

Section: Resultsmentioning

confidence: 83%

Orbit determination based on meteor observations using numerical integration of equations of motion

Dmitriev

Lupovka

Gritsevich

2015

Planetary and Space Science

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Orbit determination based on meteor observations using numerical integration of equations of motion Dmitriev, Vasily Dmitriev , V , Lupovka , V & Gritsevich , M 2015 , ' Orbit determination based on meteor observations using numerical integration of equations of motion ' , Planetary and Space Science , vol. 117 , AbstractRecently, there has been a worldwide proliferation of instruments and networks dedicated to observing meteors, including international airborne campaigns (Vaubaillon, J. et al., 2015) and possible future space-based monitoring systems (Bouquet A., et al., 2014). There has been a corresponding rapid rise in high quality data accumulating annually. In this paper, we present a method embodied in a software program, which can effectively and accurately process these data in an automated mode and discover the pre-impact orbit and possibly the origin or parent body of a meteoroid or asteroid. The required input parameters are the topocentric pre-atmospheric velocity vector and the coordinates of the atmospheric entry point of the meteoroid, i.e. the beginning point of visual path of a meteor, in the an Earth centered-Earth fixed coordinate system, the International Terrestrial Reference Frame (ITRF). Our method is based on strict coordinate transformation from the ITRF to an inertial reference frame and on numerical integration of the equations of motion for a perturbed two-body problem. Basic accelerations perturbing a meteoroid's orbit and their influence on the orbital elements are also studied and demonstrated. Our method is then compared with several published studies that utilized variations of a traditional analytical technique, the zenith attraction method, which corrects for the direction of the meteor's trajectory and its apparent velocity due to Earth's gravity. We then demonstrate the proposed technique on new observational data obtained from the Finnish Fireball Network (FFN) as well as on simulated data. In addition, we propose a method of analysis of error propagation, based on general rule of covariance transformation.

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A comprehensive study of distribution laws for the fragments of Košice meteorite

Cited by 28 publications

References 30 publications

Orbit and dynamic origin of the recently recovered Annama's H5 chondrite

Orbit and dynamic origin of the recently recovered Annama's H5 chondrite

Density, porosity and magnetic susceptibility of the Košice meteorite shower and homogeneity of its parent meteoroid

Orbit determination based on meteor observations using numerical integration of equations of motion

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