Characterization of the Meteoroid Spatial Flux Density during the 1999 Leonid Storm

  • Peter S. GuralEmail author
  • Peter Jenniskens
Chapter 1: Meteor Shower Activity, Forecasting, Dust Orbits


The November 18, 1999 Leonid storm was rich in meteors and well observed by airborne intensified video cameras aimed low in the sky which enabled enhanced meteor counts over ground-based observations. The two- and three-dimensional distribution of meteoroids was investigated for signs of clustering that could provide evidence of meteoroid fragmentation shortly after lift-off from the parent comet 55P/Tempel-Tuttle, or much later due to space weathering. Analysis of the video tapes yields a refined estimation of the mass ratio during the peak of s = 1.65 and spatial flux density of 0.5 particles/km2 greater than those causing visual magnitude +6.5 during the 5 min centered around the peak of the storm. Furthermore, the projection of the individual trails into three-dimensional Heliocentric coordinates, shows non-homogeneity of the stream on spatial scales from hundreds to thousands of kilometers.


Meteor shower Meteoroid stream Dust trail Comet Comet dust ejection Dust fragmentation Space weathering 


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  1. B.C. Clark, S.F. Green, T.E. Economou, S.A. Sandford, M.E. Zolensky, N. McBride, D.E. Brownlee, Release and fragmentation of aggregates to produce heterogeneous, lumpy coma streams. J. Geophys. Res. 109, E12 (2004).CiteID E12S03CrossRefGoogle Scholar
  2. P.S. Gural, An operational autonomous meteor detector: development issues and early results. JIMO 25, 136–140 (1997)ADSGoogle Scholar
  3. P.S. Gural, in Meteor Observation Simulation Tool. Proceedings of the International Meteor Conference ed. by M. Triglav, A. Knöfel, C. Trayner (International Meteor Organization, 2002), pp. 29–35Google Scholar
  4. P.S. Gural, A human visual perception model and its impact on Population Index estimation, ZHR, and best look direction. JIMO 32, 97–108 (2004)ADSGoogle Scholar
  5. P.S. Gural, P. Jenniskens, Leonid storm flux analysis from one Leonid MAC video AL50R. Earth Moon Planets 82/83, 221–247 (2000)CrossRefADSGoogle Scholar
  6. S.F. Green, N. McBride, M.T.S.H. Colwell, J.A.M. McDonnell, A.J. Tuzzolino, T.E. Economou, B.C. Clark, Z. Sekanina, P. Tsou, D.E. Brownlee, Stardust Wild 2 dust measurements. ESA SP 643, 35–44 (2007)ADSGoogle Scholar
  7. P. Jenniskens, Meteor Showers and their Parent Comets. (Cambridge University Press, Cambridge, U.K., 2006), Chap. 31Google Scholar
  8. P. Jenniskens, S.J. Butow, M. Fonda, The 1999 Leonid multi-instrument aircraft campaign—an early review. Earth Moon Planets 82–83, 1–26 (2000)Google Scholar
  9. M. Kinoshita, M. Marayuma, T. Sagayama, Preliminary activity of Leonid meteor storm observed with a video camera in 1997. Geophys. Res. Lett. 26, 41–44 (1999)CrossRefADSGoogle Scholar
  10. T. Mukai J. Blum A.M. Nakamura R.E. Johnson O. Havnes, Physical processes on interplanetary dust. in Interplanetary Dusts, ed. by E. Grün B.Å.S. Gustafson S.F. Dermott H. Fechtig (Springer-Verlag, Berlin, 2001), pp. 445–507Google Scholar
  11. S. Nikolova, J. Jones, Lifetimes of meteoroids in interplanetary space: the effect of erosive collisions and planetary perturbations. ESA SP 495, 581–585 (2001)ADSGoogle Scholar
  12. W. Singer, S. Molau, J. Rendtel, D.J. Asher, N.J. Mitchell, U. von Zahn, The 1999 Leonid meteor storm: verification of rapid activity variations by observations at three sites. MNRAS 318, L25–L29 (2000)CrossRefADSGoogle Scholar
  13. J.M. Trigo-Rodriguez, H. Betlem, E. Lyytinen, Leonid meteoroid orbits perturbed by collisions with interplanetary dust. Astrophys. J. 621, 1146–1162 (2005)CrossRefADSGoogle Scholar
  14. A.J. Tuzzolino, T.E. Economou, B.C. Clark, P. Tsou, D.E. Brownlee, S.F. Green, J.A.M. McDonnell, N. McBride, M.T.S.H. Colwell, Dust measurements in the coma of comet 81P/Wild 2 by the Dust Flux Monitor Instrument. Science 304, 1776–1780 (2004)CrossRefADSGoogle Scholar
  15. J.I. Watanabe, I. Tabe, H. Hasegawa, T. Hashimoto, T. Fuse, M. Yoshikawa, S. Abe, B. Suzuki, Meteoroid clusters—evidence of fragmentation in space. ESA SP 500, 277–279 (2002)ADSGoogle Scholar
  16. F.L. Whipple, Meteoric erosion in space. Smiths. Contr. Astrophys. 7, 239–248 (1963)ADSGoogle Scholar
  17. I.P. Williams, The determination of the ejection velocity of meteoroids from cometary nuclei. ESA SP 495, 33–42 (2001)ADSGoogle Scholar
  18. I.P. Williams, The evolution of meteoroid streams. in Meteors in the Earth’s Atmosphere, ed. by E. Murad, I.P. Williams (Cambridge University Press, Cambrdige, 2002) pp. 13–32Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.SAICChantillyUSA
  2. 2.Carl Sagan Center, SETI InstituteMountain ViewUSA

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