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Luminous efficiency is a necessary parameter for determining meteoroid mass from optical emission. Despite this importance, it is very poorly known, with previous results varying by up to two orders of magnitude for a given speed. We…

Earth and Planetary Astrophysics · Physics 2018-02-14 Dilini Subasinghe , Margaret Campbell-Brown

We report on an eight year survey of simultaneous optical and radar meteor detections with the goal of isolating the fraction of meteors missed by specular radars. A total of 10,503 Electron Multiplied Charge Couple Device (EMCCD) meteors…

Earth and Planetary Astrophysics · Physics 2026-04-21 Margaret Campbell-Brown

We report results of a four-year survey using Electron Multiplied Charged Coupled Device (EMCCD) cameras recording 34761 two-station video meteor events complete to a limiting magnitude of +6. The survey goal was to characterize probable…

Earth and Planetary Astrophysics · Physics 2021-10-04 Tristan Mills , P. G. Brown , M. J. Mazur , D. Vida , Peter S. Gural , Althea V. Moorhead

The mass ranges of meteors, imaged by electro-optical (EO) cameras and backscatter radar receivers, for the most part do not overlap. Typical EO systems detect meteoroid masses down to 10$^{-5}$ kg or roughly magnitude +2 meteors when using…

Instrumentation and Methods for Astrophysics · Physics 2022-02-23 P. Gural , T. Mills , M. Mazur , P. Brown

We report high resolution multi-station observations of meteors by the Canadian Automated Meteor Observatory (CAMO) recorded from June 2009 to August 2010. Our survey has a limiting detection magnitude of +5 mag in R-band, equivalent to a…

Earth and Planetary Astrophysics · Physics 2015-05-30 R. Musci , R. J. Weryk , P. Brown , M. D. Campbell-Brown , P. A. Wiegert

The initial results of a two year simultaneous optical-radar meteor campaign are described. Analysis of 105 double-station optical meteors having plane of sky intersection angles greater than 5 degrees and trail lengths in excess of 2 km…

Earth and Planetary Astrophysics · Physics 2017-04-27 Peter Brown , Gunter Stober , Carsten Schult , Z. Krzeminski , William Cooke , Jorge Chau

Many existing optical meteor trajectory estimation methods use the approximation that the velocity of the meteor at the beginning of its luminous phase is equivalent to its velocity before atmospheric entry. Meteoroid kinetic energy loss…

Earth and Planetary Astrophysics · Physics 2018-08-01 Denis Vida , Peter G. Brown , Margaret Campbell-Brown

Here we report on the results of meteor observations with 9-channel Mini-MegaTORTORA (MMT-9) wide-field optical monitoring system with high temporal resolution. During first 1.5 years of operation more than 90 thousands of meteors have been…

Earth and Planetary Astrophysics · Physics 2016-02-26 S. Karpov , N. Orekhova , G. Beskin , A. Biryukov , S. Bondar , E. Ivanov , E. Katkova , A. Perkov , V. Sasyuk

We examine meteoroid orbits recorded by the Canadian Meteor Orbit Radar (CMOR) from 2012-2019, consisting of just over 11 million orbits in a search for potential interstellar meteoroids. Our 7.5 year survey consists of an integrated…

Earth and Planetary Astrophysics · Physics 2020-06-29 Mark Froncisz , Peter Brown , Robert J. Weryk

Context. The mirror tracking system of the Canadian Automated Meteor Observatory (CAMO) can track meteors in real time, providing an effective angular resolution of 1 arc second and a temporal resolution of 100 frames per second. Aims. We…

Earth and Planetary Astrophysics · Physics 2020-09-30 Denis Vida , Peter G. Brown , Margaret Campbell-Brown , Robert J. Weryk , Gunter Stober , John P. McCormack

We investigate the possibility that sufficiently large electric fields and/or ionization during geomagnetic disturbed conditions may invalidate the assumptions applied in the retrieval of neutral horizontal winds from meteor and/or lidar…

Space Physics · Physics 2018-07-24 G. Kishore Kumar , H. Nesse Tyssøy , Bifford P. Williams

We have analysed the orbits and ablation characteristics in the atmosphere of 59 earth-impacting fireballs, produced by meteoroids one meter in diameter or larger, described here as meter-scale. Using heights at peak luminosity as a proxy…

Earth and Planetary Astrophysics · Physics 2015-12-23 P. Brown , P. Wiegert , D. Clark , E. Tagliaferri

[Abridged] We present a search for fast optical transients (~0.5 hr-1 day) using repeated observations of the Pan-STARRS1 Medium-Deep Survey (PS1/MDS) fields. Our search takes advantage of the consecutive g/r-band observations (16.5 min in…

This article describes our approach to quantifying the characteristics of meteors such as temperature, chemical composition, and others. We are using a new approach based on colourimetry. We analyze an image of Leonid meteor-6230 obtained…

Earth and Planetary Astrophysics · Physics 2021-06-15 B. E. Zhilyaev , V. N. Petukhov , V. N. Reshetnyk , A. P. Vidmachenko

In the first paper of this series we examined existing methods of optical meteor trajectory estimation and developed a novel method which simultaneously uses both the geometry and the dynamics of meteors to constrain their trajectories. We…

Earth and Planetary Astrophysics · Physics 2020-01-08 Denis Vida , Peter G. Brown , Margaret Campbell-Brown , Paul Wiegert , Peter S. Gural

We provide an overview of the observational properties of the four major Taurid showers, namely the Northern and Southern Taurids (#017 NTA and #002 STA), the Beta Taurids (#173 BTA) and the Zeta Perseids (#172 ZPE). Analysing more than two…

Earth and Planetary Astrophysics · Physics 2022-02-23 A. Egal , P. G. Brown , P. Wiegert , Y. Kipreos

Meteoroids entering the Earth's atmosphere can be observed as meteors, thereby providing useful information on their formation and hence on their parent bodies. We developed a data reduction software package for double station meteor data…

Instrumentation and Methods for Astrophysics · Physics 2018-10-24 A. Margonis , A. Christou , J. Oberst
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