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We present an algorithm developed to measure the fluxes of major meteor showers as observed in NASA's All-Sky Fireball Network cameras. Measurements of fluxes from the All-Sky cameras not only improve the Meteoroid Environment Office's…

Earth and Planetary Astrophysics · Physics 2020-06-03 Steven Ehlert , Rhiannon Blaauw Erskine

Meteor showers occur when streams of meteoroids originating from a common source intersect the Earth. There will be small dissimilarities between the direction of motion of different meteoroids within a stream, and these small differences…

Earth and Planetary Astrophysics · Physics 2022-06-01 Althea V. Moorhead , Tiffany Clements , Denis Vida

NASA's Meteoroid Environment Office (MEO) produces an annual meteor shower forecast in order to help spacecraft operators assess the risk posed by meteoroid streams. Previously, this forecast focused on the International Space Station and…

Earth and Planetary Astrophysics · Physics 2019-04-16 Althea V. Moorhead , Auriane Egal , Peter G. Brown , Danielle E. Moser , William J. Cooke

The rate at which meteors pass through Earth's atmosphere has been measured or estimated many times over; existing flux measurements span at least 12 astronomical magnitudes, or roughly five decades in mass. Unfortunately, the common…

Earth and Planetary Astrophysics · Physics 2024-05-14 Althea V. Moorhead , Denis Vida , Peter G. Brown , Margaret D. Campbell-Brown

This is an overview of recent research on meteors and the parent bodies from which they are produced. While many meteor showers result from material ejected by comets, two out of the three strongest annual showers (the Geminids and the…

Earth and Planetary Astrophysics · Physics 2022-09-21 Toshihiro Kasuga , David Jewitt

This work presents numerical simulations of meteoroid streams released by comet 21P/Giacobini-Zinner over the period 1850-2030. The initial methodology, based on Vaubaillon et al. (2005), has been updated and modified to account for the…

Earth and Planetary Astrophysics · Physics 2019-05-22 A. Egal , P. Wiegert , P. G. Brown , D. E. Moser , M. Campbell-Brown , A. Moorhead , S. Ehlert , N. Moticska

Context. Several authors predicted an outburst of the Draconid meteor shower in 2018, but with an uncertain level of activity. Aims. Optical meteor observations were used to derive the population and mass indices, flux, and radiant…

Earth and Planetary Astrophysics · Physics 2020-04-01 Denis Vida , Margaret Campbell-Brown , Peter G. Brown , Auriane Egal , Michael J. Mazur

Material arriving at our solar system from the Galaxy may be detected at Earth in the form of meteors ablating in our atmosphere. Here we report on a search for interstellar meteors within the highest-quality events in the Global Meteor…

Earth and Planetary Astrophysics · Physics 2025-03-26 Paul Wiegert , Vanessa Tran , Cole Gregg , Denis Vida , Peter Brown

Context. The existence of meteor clusters has long since been a subject of speculation and so far only seven events have been reported, among which two involve less than five meteors, and three were seen during the Leonid storms. Aims. The…

Predictions of the 2018 Draconid activity at the Earth and the Sun-Earth L1 and L2 Lagrange points are presented. Numerical simulations of the meteoroids' ejection and evolution from comet 21P/Giacobini-Zinner are performed with a careful…

Earth and Planetary Astrophysics · Physics 2018-10-17 Auriane Egal , Paul Wiegert , Peter G. Brown , Danielle E. Moser , Althea V. Moorhead , William J. Cooke

We present a new numerical model of the eta-Aquariid and Orionid meteor showers. The model investigates the origin, variability and age of the eta-Aquariid and Orionid apparitions from 1985 to the present day, in order to forecast their…

Earth and Planetary Astrophysics · Physics 2020-10-14 Auriane Egal , Paul Wiegert , Peter G. Brown , Margaret Campbell-Brown , Denis Vida

Although the risk posed to spacecraft due to meteoroid impacts is dominated by sporadic meteoroids, meteor showers can raise this risk for short periods of time. NASA's Meteoroid Environment Office issues meteor shower forecasts that…

Earth and Planetary Astrophysics · Physics 2024-08-09 Althea V. Moorhead , William J. Cooke , Peter G. Brown , Margaret D. Campbell-Brown

The Daytime Sextantids meteor shower, part of the Phaethon-Geminid Stream Complex (PGC), is closely related to the Geminids, currently the strongest meteor shower visible at the Earth. The DSX share a similar orbit to asteroid 2005 UD, but…

Earth and Planetary Astrophysics · Physics 2022-08-24 Y. Kipreos , Margaret Campbell-Brown , P. Brown , D. Vida

We have estimated the largest meteoroids present in major meteor showers from observations conducted between 2019-2022 by the Geostationary Lightning Mapper (GLM) instrument on the GOES-R satellites. Our integrated time area products for…

Earth and Planetary Astrophysics · Physics 2024-05-10 Kasia Wisniewski , Peter Brown , Danielle Moser , Randy Longenbaugh

The Desert Fireball Network observed a significant outburst of fireballs belonging to the Southern Taurid Complex of meteor showers between October 27 and November 17, 2015. At the same time, the Cameras for Allsky Meteor Surveillance…

We present statistical analysis of video meteor observations for the Perseid and Geminid showers taken with two camera systems operating in Hungary from the end of 2019 through 2023. Zenithal hourly rates (ZHR) and meteor fluxes, determined…

Earth and Planetary Astrophysics · Physics 2024-11-04 Livia Deme , Krisztián Sárneczky , Antal Igaz , Balázs Csák , Nándor Opitz , Nóra Egei , József Vinkó

The Ursid meteor shower is an annual shower that usually shows little activity. However, its Zenith Hourly Rate sometimes increases, usually either when its parent comet, 8P/Tuttle, is close to its perihelion or its aphelion. Outbursts when…

The Quadrantid meteor shower is among the strongest annual meteor showers, and has drawn the attention of scientists for several decades. The stream is unusual, among others, for several reasons: its very short duration around maximum…

Earth and Planetary Astrophysics · Physics 2015-09-16 Abedin Abedin , Pavel Spurny , Paul Wiegert , Petr Pokorny , Jiri Borovicka , Peter Brown

Mathematical modelling has shown that activity of the Geminid meteor shower should rise with time, and that was confirmed by analysis of visual observations 1985--2016. We do not expect any outburst activity of the Geminid shower in 2017,…

Earth and Planetary Astrophysics · Physics 2018-01-24 G. O. Ryabova , J. Rendtel

Meteors can be classified into either sporadic meteors or showery meteors. We compile the meteor records in the astronomical archives in the Chronicle of the Koryo dynasty (918-1392), and investigate the spatial distribution of meteor…

Astrophysics · Physics 2009-11-07 Sang-Hyeon Ahn
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