Open AccessMeteor trail drift research based on baseline observations
Author(s) -
K. Ivanov,
K. Ivanov,
Евгения Комарова,
Evgeniya Komarova,
Роман Васильев,
Roman Vasilyev,
Максим Еселевич,
М. Еселевич,
А. В. Михалев,
А. В. Михалев
Publication year - 2019
Publication title -
solnečno-zemnaâ fizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2412-4737
DOI - 10.12737/szf-51201911
Subject(s) - meteor (satellite) , sky , brightness , context (archaeology) , geology , geodesy , meteorology , environmental science , remote sensing , astronomy , physics , paleontology
We analyze the results of a rare long-lived quasisymmetric ellipsoidal-annular meteor trail recorded on November 18, 2017 by two optical all-sky cameras, spaced at a distance of 150 km. The analysis is based on astrometric processing results with the use of baseline measurement methods. We determine spatial-kinematic characteristics of the meteor trail, and find features of its evolution. The ignition and extinction heights of the meteor were in the range 75–120 km. The estimate of the meteor brightness gives the absolute magnitude value of about –7.3m. It is shown that the distribution of all parts of the long-lived meteor trail occurs in the same plane at a height of ~90 km at a speed of ~320 m/s and, apparently, cannot be a consequence of an air mass movement. The total time of the meteor trail observation was more than 30 min. We offer possible explanations for the results obtained in the context of upper atmosphere processes.