Bulletin of Taras Shevchenko National University of Kyiv. Astronomy, no. 71, p. 40-44 (2025)

CALCULATION OF KINEMATIC PARAMETERS OF METEORS BASING ON AN EXAMPLE OF THE KYIV VIDEO ARCHIVE OF PERSEIDS SHOWER: TRAJECTORY PARAMETERS IN ATMOSPHERE

 

Pavlo KOZAK, PhD (Phys. & Math.), Senior Researcher

Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

Olexander ROZHILO, Leading Engineer

Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

Yuriy TARANUKHA, PhD (Phys. & Math.), Researcher

Taras Shevchenko National University of Kyiv, Kyiv, Ukraine


Abstract

Background. At present almost all observations of meteors are carried out in automated mode, which serves, from one hand, quick accumulation of observational material as databases. On the other hand, the automation of observations means complete automation of processing the observational results. The main imperfection of the automation of mathematically difficult process of video images treatment and meteor trajectory parameters calculation is the absence of a qualified control, which is very important for investigations of anomalous meteors. Thus, development and using methods which will allow to obtain the authentic and reliable data is an important stage in meteor investigations.

Methods. Determination of errors of calculation each kinematic parameter of each individual meteor is impossible from the position of classic approaches due to bulking of mathematic formulas and large amount of parameters to be calculated. In this work it is described and used in practice about processing of meteor from Perseids shower the method of statistical trials, or Monte-Carlo method.

Results. Monte-Carlo method which is based on using elements of theory of probability and mathematical statistics was used for processing of 11 meteors of Perseids shower, obtained during one night in 2010 at observational stations of the astronomical observatory of the university. The analysis of obtained results is carried out, in part the analysis of confidence interval of meteor parameters to be computed.

Conclusions. The presented method of meteor TV observations processing maybe supposed to be a modern approach for automatic processing of meteor video observations, in spite of at the moment it has some limitation what is explained in the work.

Key words
Meteor, meteor double-station observations, video-observations, observational devices, statistical methods of data processing, automation of observation process.

References

Golubaev, A. V., Gorbanev, Yu. M., Shulga, O. V., Andreev, M. A., Bushuev, F. I., Vidmachenko, A. P., Hrudynin, B. O., Zhilyaev, B. E., Kaliuzhnyi, M. P., Kozak, P. M., Kulichenko, M. O., Malynovskyi, Ye. V., Mozgova, A. O., Savchuk, S. G., Steklov, A. F., Sumaruk, Yu. P., Yankiv-Vitkovska, L. M. (2022). Creation of the Ukrainian meteor observation network: instruments, methods for processing, observatin possibilities. Space Science and Technology, 28(4), 39–70 [in Ukrainian]. https://doi.org/10.15407/knit2022.04.039

Borovička, J., & Ceplecha, Z. (1992). Earth-grazing fireball of October 13, 1990. Astronomy and Astrophysics, 257, 323–328. https://ui.adsabs.harvard.edu/ abs/1992A&A…257..323B

Hawkes, R. L., & Woodworth, S. C. (1997). Optical detection of two meteoroids from interstellar space. Journal of the Royal Astronomical Society of Canada, 91, 218–219. https://adsabs.harvard.edu/full/1997JRASC..91..218H

Kozak, P. M., Rozhilo, A. A., & Taranukha, Y. G. (2001). Some features of digital kinematic and photometrical processing of faint TV meteors. Proceedings of Meteoroids 2001 Conference, Swedish institute of space physics, Kiruna, Sweden, 6–10 August 2001 (ESA SP-495, November 2001), 337–342. https://adsabs.harvard.edu/full/2001ESASP.495..337K

Kozak, P. N. (2002). Analysis of methods and precision of equatorial coordinates determination at digital processing of TV observations of meteors. Kinematics and physics of celestial bodies, 18(5), 471–480 [in Russian]. http://dspace.nbuv.gov.ua/handle/123456789/149823

Kozak, P. (2008). “Falling Star”: software for processing of double-station TV meteor observations. Earth, Moon, and Planets, 102(1-4), 277–283. https://doi.org/10.1007/s11038-007-9223-x

Kozak, P. M., & Watanabe, J. (2017). Upward-moving low-light meteor – I. Observation results. Monthly Notices of the Royal Astronomical Society, 467(1), 793–801. https://doi.org/10.1093/mnras/stx008

Kozak, P. M., & Watanabe, J. (2020). Meteors with extreme beginning heights from observations with high-sensitivity super-isocon TV systems. Monthly Notices of the Royal Astronomical Society, 497(4), 5550–5559. https://doi.org/10.1093/mnras/staa2183

Spurný, P., Betlem, H., Jobse, K., Koten, P., & Leven, J.V. (2000). New type of radiation of bright Leonid meteors above 130 km. Meteoritics and Planetary Science, 35, 1109–1115. https://doi.org/10.1111/j.1945-5100.2000.tb01497.x

Vida, D., Segon, D., Gural, P., Brown, P., McIntyre, M., Dijkema, T.J., Pavletic, L., Kukic, P., Mazur, M., Eschman, P., Roggemans, P., Merlak, A., & Zubovic, D. (2021). The Global Meteor Network – Methodology and first results. Monthly Notices of the Royal Astronomical Society, 506, 5046–5074. https://doi.org/10.1093/mnras/stab2008

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DOI: https://doi.org/10.17721/BTSNUA.2025.71.39-43