Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 28058 10.12737/stp-51201911 Results of current research Results of current research Results of current research Meteor trail drift research based on baseline observations Meteor trail drift research based on baseline observations Иванов Кирилл Ильич Ivanov Kirill Ilyich ivorypalace@gmail.com Комарова Евгения Сергеевна Komarova Evgeniya Sergeevna eskomarik@gmail.com https://orcid.org/0000-0001-8758-7964 Васильев Роман Валерьевич Vasilyev Roman Valeryevich roman_vasilyev@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Еселевич Максим Викторович Eselevich Maxim Viktorovich mesel@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Михалев Александр Васильевич Mikhalev Aleksandr Vasilyevich mikhalev@iszf.irk.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Иркутский государственный университет Irkutsk State University Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar-Terrestrial Physics SB RAS Irkutsk Russian Federation Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar Terrestrial Physics SB RAS Irkutsk Russian Federation Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar Terrestrial Physics SB RAS Irkutsk Russian Federation 5 1 77 81 https://naukaru.ru/en/nauka/article/28058/view

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.

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.

 meteor long-lived meteor trail baseline observations astrometry upper atmosphere shock wave meteor long-lived meteor trail baseline observations astrometry upper atmosphere shock wave

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