A5015990179- Astro and Planetary Science
- Planetary Science and Exploration
- Isotope Analysis in Ecology
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Space Satellite Systems and Control
- Solar and Space Plasma Dynamics
- Nuclear Physics and Applications
- History and Developments in Astronomy
- Geomagnetism and Paleomagnetism Studies
- Historical Astronomy and Related Studies
- Ionosphere and magnetosphere dynamics
- Gamma-ray bursts and supernovae
- Space Exploration and Technology
- Spacecraft Design and Technology
- Atmospheric Ozone and Climate
- GNSS positioning and interference
- Geology and Paleoclimatology Research
- Geophysics and Gravity Measurements
- Astronomy and Astrophysical Research
- Spacecraft and Cryogenic Technologies
- Target Tracking and Data Fusion in Sensor Networks
- Nuclear physics research studies
- Astrophysics and Star Formation Studies
- Astronomical and nuclear sciences
Comenius University Bratislava
2010-2022
Instituto de Astrofísica de Andalucía
2019
Astronomical Institute of the Slovak Academy of Sciences
1998-2000
Abstract The Košice meteorite fall occurred in eastern Slovakia on February 28, 2010, 22:25 UT . very bright bolide was imaged by three security video cameras from Hungary. Detailed light curves were obtained through clouds radiometers seven of the European Fireball Network. Records sonic waves found six seismic and four infrasonic stations. An atmospheric dust cloud observed next morning before sunrise. After careful calibration, records used to compute trajectory velocity. meteoroid,...
The near-Earth asteroid (3200) Phaethon is an intriguing object: its perihelion at only 0.14 au and associated with the Geminid meteor stream. We aim to use all available disk-integrated optical data derive a reliable convex shape model of Phaethon. By interpreting space- ground-based thermal infrared Spitzer spectra using thermophysical model, we also further constrain size, inertia, visible geometric albedo. applied inversion method new obtained by six instruments previous observations....
We report radar observations (2380-MHz, 13-cm) by the Arecibo Observatory and optical light curves observed from eight different observatories collected at Ondřejov of triple near-Earth asteroid system (153591) 2001 SN263. The were obtained over course ten nights spanning February 12–26, 2008 curve made throughout January 12 - March 31, 2008. Both data sets include during object's close approach 0.06558 AU on 20th, delay-Doppler images revealed to be comprised three components, making it...
We investigate the spectra, material properties, and orbital distribution of millimeter- to decimeter-sized meteoroids. Our study aims distinguish characteristics populations differently sized meteoroids reveal heterogeneity identified meteoroid streams. verify surprisingly large ratio pure iron on asteroidal orbits detected among mm-sized bodies. Emission spectra multi-station meteor trajectories were collected within AMOS network observations. The sample is based 202 meteors -1 -14...
This work studies the dynamical evolution of a possible meteor stream along orbit Příbram meteorite, which originated in tidal disruption putative rubble-pile-like parent body during close approach to Earth. We assumed at time when ascending or descending node was Earth's orbit. In last 5000 yr, has crossed Earth twice. It happened about 4200 and 3300 yr ago. both cases, we modelled release particles from simplified model rotating asteroid, traced their individual orbital current date. takes...
Abstract We provide the circumstances and details of fireball observation, search expeditions, recovery, strewn field, physical characteristics Košice meteorite that fell in Slovakia on February 28, 2010. The was only 15th case an observed bolide with a recovered mass subsequent orbit determination. Despite multiple eyewitness reports bolide, three videos from security cameras Hungary were used for field determination computation. Multiple expeditions professionals individual searchers found...
This review discusses the unsolved problem of detection interstellar particles in Earth's atmosphere and presence meteors meteor databases. Owing to difficulties obtaining accurate measurements and, consequently, meteoroids' orbital parameters, identification based on their hyperbolic excess velocities is extremely challenging. Moreover, it has be verified whether orbit's hyperbolicity was not produced Solar System. Searches for have been carried out using different observational techniques...
We report observational results of the Lyrid meteor shower observed by double-station all-sky video system on night 2009 April 21/22 at Astronomical and Geophysical Observatory Comenius University in Modra Arboretum, Tesárske Mlynany, Slovakia. This observation was first test double stations orbit determination method within frame new Slovak Video Meteor Network (SVMN). present whole set 17 orbits Lyrids as well five most precise detail form. A comparison with known datasets, photographic...
Abstract Hyperbolic meteor orbits from the catalog of 64,650 meteors observed by multistation video network located in Japan (SonotaCo 2009) have been investigated with aim determining relation between frequency hyperbolic and interstellar meteors. The proportion data decreased significantly (from 11.58% to 3.28%) after a selection quality orbits, which shows its dependence on observations. Initially, were searched for unbound due planetary perturbation. It was determined that 22 7489 (and 2...
The European viDeo MeteOr Network Database (EDMOND) is a database of video meteor orbits resulting from cooperation and data sharing among several national networks the International Meteor Organization Video Network, IMO VMN. At present, 4th version EDMOND database, which contains 83 369 orbits, has been released. first results analysis, in we studied minor streams, are presented. Using radiant-geocentric velocity method identified 267 showers, them 67 established showers 200 working list...