(meteorobs) 6 April 2015

[szilard.csizmadia at dlr.de]

Dear Roberto,

there was a very bright (-14 mag?) fireball over Hungary Apr 6, 2015 17:31 UT, just a few minutes after sunset. Many witnesses reported a sonic boom 30-40 sec after the fireball. Only low precision webcam pictures exist (the meteor cameras start a little bit later when Sun reaches -6...-12 deg):

http://tuzgomb.blogspot.de/2015/04/nappali-tuzgomb.html

(Sorry, the text is in Hungarian, but the pictures and videos are nice.)

My calculation - based on the coordinates estimated by Zoltán Zelkó from these videos/pictures - reveals an orbit which might be similar to 2015 HX176, but there is 13 deg deviation in inclination and more than 60 deg in peri, and eccentricity also only 0.53 instead of 0.788 of 2015 HX176. But the estimated altitudes-azimuths are uncertain enough to make the orbital calculation uncertain, but it seems it is not easy to relate this meteor to the presently known elements of HX176.

Can you tell me the radiant position of the suspected meteor shower? Thanks.

Best wishes,
Szilárd

________________________________________
Von: meteorobs-bounces at meteorobs.org [meteorobs-bounces at meteorobs.org]" im Auftrag von "Roberto Gorelli [md6648 at mclink.it]
Gesendet: Montag, 4. Mai 2015 21:04
An: Meteor science and meteor observing
Betreff: (meteorobs) 6 April 2015

No, this e-mail it's not (?) for the two meteorites fell in this day
in the past years its for ask if somebody saw unusual meteors around 6
April of this year. The question it's for the newly discovery asteroid
in cometary orbit  2015 HX176

http://www.minorplanetcenter.net/mpec/K15/K15J09.html

http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2015+HX176&orb=1

it has a MOID of 0.0360856 AU (from an orbit of only 4 days)
it's possible that this asteroid (0,6 km of diameter?) can to be the
parent body of a meteor shower.
The next time if the orbit not change shall be in 2056.
Best greetings.
Roberto Gorelli
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