According to the resultds of computations, in 2015 the Earth passes at 0.00084 AU from 1913 trail of the comet 197P LINEAR. The trail is very rarified, and, together with high particles ejection velocity of 31.68 m/s it virtually cancels any activity perspective. However, this case should be anyway checked, primarily by observations - if small and scattered particled would manage to create any notable activity in radiorange. Date and time of maximum is May 25, 15:12 UT, theoretical radiant coordinates are RA=223.5°, Dec=+53.2°, which place it in the extremely northern part of Bootis. Entry velocity for such meteors is 19.3 km/s, so they are on the slow part of meteor velocity scale.

Ссылки

1. Программа С. Шанова и С. Дубровского "Comet's dust 2.0". [Использована для расчета орбитальной эволюции метеорных частиц]
2. Lyytinen E, van Flandern T. "Predicting the strength of Leonid outbursts", 2000, Icarus, P. 158-160.
3. Казуо Киносита, http://www9.ocn.ne.jp/~comet/index.html [Орбитальные элементы кометы 197P LINEAR.]
4. Jenniskens P. Meteor showers and their parent comets, 2006, 780 p.

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