UDK 55 Геология. Геологические и геофизические науки
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
1. Astapovich I.S. Meteornye yavleniya v atmosfere Zemli [Meteor Phenomena in the Earth’s Atmosphere]. Moscow, State Publishing House of Physical and Mathematical Literature, 1958, 650 p. (In Russian).
2. Babadjanov P.B. Meteory i ikh nablyudeniya [Meteors and Their Observation]. Moscow, Nauka Publ., 1987, 176 p. (In Russian).
3. Bronstein V.A. Fizika meteornykh yavlenii [Physics of Meteor Phenomena]. Moscow, Nauka Publ., 1981, 416 p. (In Russian).
4. Kashcheev B.L., Lebedinets V.N., Lagutin M.F. Meteornye yavleniya v atmosphere Zemli [Meteor Phenomena in the Earth’s Atmosphere]. Moscow, Nauka Publ., 1967, 260 p. (In Russian).
5. Katasev L.A. Fotograficheskie metody meteornoi astronomii [Photographic Methods of Meteoric Astronomy]. Moscow, State Publishing House of Technical and Theoretical Literature, 1957, 179 p. (In Russian).
6. Kelley M.C., Gardner C., Drummond J., Armstrong T., Liu A., Chu X., Papen G., Kruschwitz C., Loughmiller P., Grime B., Engelman J. First observations of long-lived meteor trains with resonance lidar and other optical instruments. Geophys. Res. Lett. 2000, vol. 27, iss. 13, pp. 1811–1814. DOI: 10.1029/1999GLO11175.
7. Landau L.D., Lifshits E.M. Gidrodinamika. Kurs teoreticheskoi fiziki: T. 6 [Hydrodynamics. Course of Theoretical Physics: vol. VI]. Moscow. Nauka Publ., 1986, 736 p. (In Russian). English edition: Landaus L.D., Lifshitz E.M. Fluid Mechanics. Pergamon Press, 1987, 554 p. (Course of Teoretical Physics, vol. 6.).
8. Lang D., Hogg D., Mierle K., Blanton M., Roweis S. Astrometry.net: Blind astrometric calibration of arbitary astronomical images. Astron. J. 2010, vol. 139, no. 5, pp. 1782–1800. DOI: 10.1088/0004-6256/139/5/1782.
9. Pinaev A.V., Kuzavov V.T., Kedrinskiy V.K. The structure of shock waves in the near zone with the explosion of space charges in the air. Applied Mechanics and Technical Physics. 2000, vol. 41, no. 5, pp. 81–90. (In Russian).
10. Platov Yu.V., Chernous S.A., Alpatov V.V. Features of optical phenomena associated with launching solid-propellant ballistic missiles. Geomagnetism and Aeronomy. 2013, vol. 53, no. 2, pp. 209–214. (In Russian).
11. Tody D. IRAF in the Nineties. Astronomical Data Analysis Software and Systems, II A.S.P. Conference Series. 1993, vol. 52, pp. 173–183.
12. Vasilyev R.V., Artamonov M.F., Beletsky A.B., Zherebtsov G.A., Medvedeva I.V., Mikhalev A.V., Sirenova T.E. Registering upper atmosphere parameters in East Siberia with Fabry—Perot Interferometer KEO Scientific “Arinae”. Solar-Terr. Phys. 2017, vol. 3, iss. 3, pp. 61–75. DOI: 10.12737/stp-33201707.
13. Zeldovich Ya.B., Raizer Yu.P. Fizika udarnykh voln i vysokotemperaturnykh gidrodinamicheskikh yavlenii [Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena]. Moscow, FIZMATLIT Publ., 2008, 656 p. (In Russian).