Meteoroid orbits from video meteors. The case of the Geminid stream

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00478695" target="_blank" >RIV/67985815:_____/17:00478695 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.pss.2017.01.004" target="_blank" >http://dx.doi.org/10.1016/j.pss.2017.01.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.pss.2017.01.004" target="_blank" >10.1016/j.pss.2017.01.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Meteoroid orbits from video meteors. The case of the Geminid stream

Popis výsledku v původním jazyce

The observed orbital dispersions in the Geminid stream described by the median absolute deviation range from 0.029 to 0.042 AU(-1) for the video catalogues. The distribution of the semi-major axes of video meteors in all the databases, except for the Ondrejov (Czech) data, seem to be systematically biased in comparison with the photographic and radio meteors. The determined velocities of the video data are underestimated, probably as a consequence of the methods used for the positional and velocity measurements. The largest shift is observed in the EDMOND and SonotaCo catalogues. Except for the measurement errors which influence the analyses and their interpretations, we also point out the problem of the uncertainties of the numerical integration procedures that influence the simulations' results. Several experimental integrations of the Geminids parent asteroid, which we performed from the present to the past and then back to the year 2015, showed that a complete reproduction, including also the mean anomaly, is only possible for a time span of about 2700 years.

Název v anglickém jazyce

Meteoroid orbits from video meteors. The case of the Geminid stream

Popis výsledku anglicky

The observed orbital dispersions in the Geminid stream described by the median absolute deviation range from 0.029 to 0.042 AU(-1) for the video catalogues. The distribution of the semi-major axes of video meteors in all the databases, except for the Ondrejov (Czech) data, seem to be systematically biased in comparison with the photographic and radio meteors. The determined velocities of the video data are underestimated, probably as a consequence of the methods used for the positional and velocity measurements. The largest shift is observed in the EDMOND and SonotaCo catalogues. Except for the measurement errors which influence the analyses and their interpretations, we also point out the problem of the uncertainties of the numerical integration procedures that influence the simulations' results. Several experimental integrations of the Geminids parent asteroid, which we performed from the present to the past and then back to the year 2015, showed that a complete reproduction, including also the mean anomaly, is only possible for a time span of about 2700 years.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GA14-25251S" target="_blank" >GA14-25251S: Nelineární obrazové systémy s prostorově variantní bodovou rozptylovou funkcí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Planetary and Space Science

ISSN

0032-0633

e-ISSN

—

Svazek periodika

143

Číslo periodika v rámci svazku

SI

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

89-98

Kód UT WoS článku

000405050600015

EID výsledku v databázi Scopus

2-s2.0-85009740783