June Bootids 2004, Visual

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 temporal resolution of the activity profile, the peak time is still very vague, perhaps near 13h30 UT. We would like to thank the observers whose data were used for the below activity profile.

  
  ------------------------------------------------------  
  Date (UT) Time Solarlong nINT nJBO ZHR  
  ------------------------------------------------------  
  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  
  ------------------------------------------------------  
  

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.

The contributors are:

  
  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  
  Kim Youmans