(meteorobs) IMO Shower Circ.: June Bootids 2004
RainerArlt
rarlt at aip.de
Fri Jun 25 16:02:08 EDT 2004
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I M O S h o w e r C i r c u l a r
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June Bootids, VISUAL DATA
Enhanced activity of the June Bootid meteor shower was
predicted by three independent numerical modelling
attempts by Sato, Shanov, Dubrowskiy, and Vaubaillon
which were confirmed by Lyytinen. Times given covered
roughly June 23, 10h to 19h UT.
Average ZHRs from visual observations of the 2004 June
Bootids are compiled below. Significant activity was
found by the observers. Because of the limited tempo-
ral resolution of the activity profile, the peak time
is still very vague, perhaps near 13h30 UT. We would
like to thank the observers
Shlomi Eini, Gunnar Glitscher, Lew Gramer, Robin Gray,
Daniel Gruen, Takema Hashimoto, Roberto Haver, Javor
Kac, Richard Kramer, Anna Levina, Robert Lunsford, Pierre
Martin, Mikhail Maslov, Minoru Muraki, Kouji Ohnishi,
Koetsu Sato, Mikiya Sato, Tomoko Sato, Sergey Shanov,
Wesley Stone, Kazumi Terakubo, Shigeo Uchiyama, Jan
Verfl, and Kim Youmans
whose data were used for the below activity profile.
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Date (UT) Time Solarlong nINT nJBO ZHR
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Jun 22.67 16:05 91.5050 4 5 3 +- 1
Jun 22.95 22:48 91.7720 10 10 3 +- 1
Jun 23.21 05:02 92.0200 6 56 11 +- 1
Jun 23.42 10:05 92.2200 6 47 8 +- 1
Jun 23.55 13:12 92.3440 6 42 49 +- 7
Jun 23.62 14:53 92.4110 4 10 23 +- 7
Jun 23.66 15:50 92.4490 5 18 19 +- 4
Jun 23.71 17:02 92.4970 5 5 9 +- 4
Jun 24.11 02:38 92.8790 6 3 1 +- 1
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A few observations with large correction factors due to
unfavourable conditions were omitted from the analysis.
A population index of r = 2.2 was used. The radiant was
assumed at alpha=223, delta=+47, zenithal attraction was
taken into account for each individual observing period.
Rainer Arlt
2004 Jun 25
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