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European Fireball Network

European Fireball Network is an international organization based in Central Europe ( Germany and Czech Republic ). Its purpose is systematic and simultaneous observation of meteors and other nebular object purposes.

The network was initially located at the Ondřejov Observatory , Czech Republic, after the fall of the Příbram meteorite on April 7, 1959, which was the first meteorite simultaneously observed by several stations. By 1963, the network of five stations. It was later (about 1968) expanded by the installation of about 15 new stations in Germany and named the European Fireball Network. [1]

All-sky photo with the Earth-grazing meteoroid of the 13th of October 1990(the light track of the picture going from the south to the north) taken at ervená hora , one of the stations of the European Fireball Network. The bright track on the left is the Moon .

The network currently consists of at least 34 camera stations located in Germany , Czech Republic , Belgium , Luxembourg , Switzerland , Slovakia and Austria at elevations up to 1846 meters above sea level. The cameras are separated by a distance of about 100 kilometers (62 mi); They cover an area of ​​about 1,000,000 square kilometers (390,000 sq mi) and photograph the entire visible sky. Cameras of Czech stations are equipped with fisheye lenses and are directed towards the zenith . Sky recordings are made every night with a long exposure time. Quickly moving bright objects ( meteors) appear as broken traces in the images, and from the exposure time, the burn time and the angular velocity of the object can be determined. An important feature of the network is the simultaneous observation of an object from multiple stations that allows accurate three-dimensional reconstruction of its trajectory using triangulation . The network is jointly operated by the German Aerospace Center(DLR) and the Institute of Planetary Research in Prague ( Ondřejov Observatory ). It produces about 10,000 images per year documenting about 1200 hours of clear sky observations. Its cameras detect about 50 large meteors per year. [1] [2]

The most significant observation by the network to date is the fall of the Neuschwanstein meteorite on the 6th of April. The similarity of the reconstructed orbits of the Neuschwanstein and Příbram allowed associating these meteorites to the same parent body. [3] [4] [5] [6] [7]

See also

  • Glossary of meteoritics

References

  1. ^ Jump up to:a b Oberst, J .; Molau, S .; Heinlein, D .; Gritzner, C .; Schindler, M .; Spurny, P .; Ceplecha, Z .; Rendtel, J .; Betlem, H. „The European Fireball Network“: Current status and future prospects „. Meteoritics & Planetary Science . 33 (1): 49. Bibcode : 1998M & PS … 33 … 49O . doi : 10.1111 / j.1945-5100.1998.tb01606.x . some excerpts
  2. Jump up^ European Fireball Networkpage at DLR (in German)
  3. Jump up^ Oddbjorn Engvold (2007). Reports on Astronomy 2003-2005 (IAU XXVIA): IAU Transactions XXVIA . Cambridge University Press . p. 168. ISBN  0-521-85604-3 .
  4. Jump up^ „Meteor Neuschwanstein“ . DLR – Institute of Planetary Research (in German).
  5. Jump up^ J. Colonel; D. Heinlein; U. Köhler; P. Spurný (2004). „The multiple meteorite fall of Neuschwanstein: Circumstances of the event and meteorite search campaigns“. Meteoritics & Planetary Science . 39 (10): 1627-1641. Bibcode : 2004M & PS … 39.1627O . doi : 10.1111 / j.1945-5100.2004.tb00062.x .
  6. Jump up^ P. Spurný; J. Oberst; D. Heinlein (2003). „Photographic observations of Neuschwanstein, a second meteorite from the orbit of the Pribram chondrite“. Nature . 423 (6936): 151-153. Bibcode :2003Natur.423..151S . doi : 10.1038 / nature01592 . PMID  12736679 .
  7. Jump up^ Kornoš, Leonard; Toth, Juraj; Vereš, Peter (2007). „Orbital Evolution of Příbram and Neuschwanstein“. Earth, Moon, and Planets . 102 (1-4): 59. arXiv : 1104.3115  . Bibcode : 2008EM & P..102 … 59K . doi : 10.1007 / s11038-007-9213-z .