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

Trigo-Rodríguez, J. M.; Lyytinen, E.; Gritsevich, Maria; Moreno-Ibáñez, M.; Bottke, W. F.; Williams, I. P.; Lupovka, V.; Dmitriev, V.; Kohout, T.; Grokhovsky, V. I.

doi:10.1093/mnras/stv378

Cited by 49 publications

(50 citation statements)

References 42 publications

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“…However from the records which are available also from very large distances (over 700 km -Finnish station Mikkeli) and from several infrasound records from all Scandinavia it is evident that it was a very bright event with at least one big flare which could reach almost a super-bolide category. The published estimate of the maximum absolute brightness is about −18 magnitude (Trigo-Rodriguez et al, 2015). Cascade fragmentation is also visible on the video record.…”

Section: The Annama Meteorite Fallmentioning

confidence: 82%

“…It was recorded by 3 cameras of the Finnish fireball network and by the one dashboard camera from Russian town Snezhnogorsk. Results concerning bolide trajectory and heliocentric orbit based on analysis of these records were published in Trigo-Rodriguez et al, 2015 andGritsevich et al, 2014. However from the available data it is evident that the quality of instrumental records as well as the precision and reliability of the published results, especially concerning the trajectory location and velocity determination, is very limited.…”

Section: The Annama Meteorite Fallmentioning

confidence: 99%

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Instrumentally documented meteorite falls: two recent cases and statistics from all falls

Spurný

2015

Proc. IAU

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Abstract. Precise data from instrumental observations of fireballs, especially those for really bright bolides, provide information about the population and physical properties of meteoroids, i.e. fragments of asteroids and comets, colliding with the Earth's atmosphere. An overview of what is known about meteoroids and their parent bodies from analysis of bolides producing meteorite falls, especially from the instrumentally observed meteorite falls, was a topic of this invited contribution. At present, atmospheric and orbital information with different degree of reliability and precision for these meteorite falls is known for only 24 cases. This topic was described in detail in the review work of Borovička, Spurný and Brown (2015) (Borovička et al., 2015). However, this work contains all instrumentally documented falls until end of 2013. To bring this work up to date, two new instrumentally observed meteorite falls in 2014, the Annama meteorite fall in Russia on 18 April 2014 and theŽďár nad Sázavou meteorite fall in the Czech Republic on 9 December 2014, are presented and commented in this paper. Especially the second case is mentioned in more detail including still unpublished data. Statistical analyses resulting from all 24 instrumentally documented falls are also mentioned.

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Section: The Annama Meteorite Fallmentioning

confidence: 82%

Section: The Annama Meteorite Fallmentioning

confidence: 99%

Instrumentally documented meteorite falls: two recent cases and statistics from all falls

Spurný

2015

Proc. IAU

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“…The Annama fireball was observed by three FFN stations and led to successful meteorite recovery at the end of May 2014 (Gritsevich et al 2014b;Trigo-Rodriguez, et al, 2015). A dashcam video of the Annama fireball made by Alexandr Nesterov from Snezhnogorsk was a valuable asset in the trajectory reconstruction.…”

Section: Application To the Recent Data Obtained By The Finnish Firebmentioning

confidence: 99%

“…For example, in the works (de la Fuente Marcos & de la Fuente Marcos, 2013, Trigo-Rodriguez, et al, 2015 a backward integration was performed for period of at least 10000 years. If there are sufficient uncertainties in the initial conditions, then they can negate the value of this type of analysis.…”

Section: Introductionmentioning

confidence: 99%

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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“…Bodies in the asteroid belt may enter the ν 6 , 3:1 and 5:2 resonances and stay there for a few Myrs to be then transferred to the Earth. Evidence pointing to these dynamic delivery mechanisms comes from the meteoroids with well-determined heliocentric orbit updated in Trigo-Rodríguez et al (2015).…”

Section: Introductionmentioning

confidence: 99%

The Collisional Evolution of Undifferentiated Asteroids and the Formation of Chondritic Meteoroids

Beitz

Blum

Parisi

et al. 2016

ApJ

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Most meteorites are fragments from recent collisions experienced in the asteroid belt. In such a hyper-velocity collision, the smaller collision partner is destroyed, whereas a crater on the asteroid is formed or it is entirely disrupted, too. The present size distribution of the asteroid belt suggests that an asteroid with 100 km radius is encountered 10 14 times during the lifetime of the Solar System by objects larger than 10 cm in radius; the formed craters cover the surface of the asteroid about 100 times. We present a Monte Carlo code that takes into account the statistical bombardment of individual infinitesimally small surface elements, the subsequent compaction of the underlying material, the formation of a crater and a regolith layer. For the entire asteroid, 10,000 individual surface elements are calculated. We compare the ejected material from the calculated craters with the shock stage of meteorites with low petrologic type and find that these most likely stem from smaller parent bodies that do not possess a significant regolith layer. For larger objects, which accrete a regolith layer, a prediction of the thickness depending on the largest visible crater can be made. Additionally, we compare the crater distribution of an object initially 100 km in radius with the shape model of the asteroid (21) Lutetia, assuming it to be initially formed spherical with a radius that is equal to its longest present ellipsoid length. Here, we find the shapes of both objects to show resemblance to each other.

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

Cited by 49 publications

References 42 publications

Instrumentally documented meteorite falls: two recent cases and statistics from all falls

Instrumentally documented meteorite falls: two recent cases and statistics from all falls

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

The Collisional Evolution of Undifferentiated Asteroids and the Formation of Chondritic Meteoroids

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