[ www.imo.net ]

Leonids 2010: visual data quicklook

Introduction

This page shows automated results of the Leonids 2010, based on visual observations by volunteers astronomers collected through the report form of the International Meteor Organization (IMO). The information on this page is generated automatically; for scientific use please refer to manual analyses published in scientific journals (such as WGN). Send your feedback regarding this page to Geert Barentsen.

Page contents:

Immy Activity profile
Immy Observer statistics
Immy Data access
Immy Credits and references

Page generated: 2010 December 10 at 20:20 UTC.

Activity profile

The graph below shows the ZHR (Zenithal Hourly Rate), which is the number of meteors an observer would see under a very dark sky with the radiant of the shower in zenith.
ZHRmax = 32 based on 514 Leonids reported in 206 intervals, assuming population index r = 2.0

ZHR graph

Time (UTC)Solarlon nINT nLEO ZHR Particle density
2010-11-07 15:45 224.980 6 2 2±1 2 / 109·km3
2010-11-09 09:58 226.746 2 2 2±1 2 / 109·km3
2010-11-11 14:13 228.935 8 11 4±1 3 / 109·km3
2010-11-12 20:54 230.221 8 5 4±2 3 / 109·km3
2010-11-13 23:38 231.341 20 37 5±1 4 / 109·km3
2010-11-14 19:46 232.186 23 35 6±1 5 / 109·km3
2010-11-15 23:50 233.364 10 36 11±2 9 / 109·km3
2010-11-16 21:24 234.269 18 37 11±2 9 / 109·km3
2010-11-17 04:29 234.567 11 35 15±2 12 / 109·km3
2010-11-17 11:08 234.845 12 35 17±3 13 / 109·km3
2010-11-17 21:52 235.296 8 36 26±4 20 / 109·km3
2010-11-18 01:40 235.456 8 35 32±5 25 / 109·km3
2010-11-18 02:42 235.500 15 36 15±2 12 / 109·km3
2010-11-18 04:31 235.576 14 38 20±3 16 / 109·km3
2010-11-18 08:14 235.732 17 37 17±3 13 / 109·km3
2010-11-18 15:27 236.035 14 40 14±2 11 / 109·km3
2010-11-19 04:47 236.595 5 35 17±3 13 / 109·km3
2010-11-19 12:56 236.938 6 22 10±2 8 / 109·km3
2010-11-29 06:00 246.752 1 0 4±4 3 / 109·km3

The reported intervals are automatically added together into the bins shown above, based on the number of meteors and the distribution of the intervals. For each bin, the following parameters are computed:

Observer statistics

Data has been received from 43 observers in 19 countries. Thank you for your efforts!

Spatial distribution of observers

Note: click on the map for an interactive version.

Spatial distribution

Temporal distribution of observers

Temporal distribution

Table of observers

ObserverCountryTeffnLEO
Mina Alizadeh Iran 0.66h 3
Asmita Bhandare India 1.73h 5
Raka Dabhade India 1.83h 2
Anderson Dantas Brazil 3.91h 34
Rucha Deshpande India 2.07h 4
Peter Detterline United States 1.50h 8
C B Devgun India 1.25h 35
Suraj Dhiwar India 1.73h 7
Todor Dimitrov Bulgaria 0.82h 4
Shlomi Eini Israel 2.55h 23
Reyhaneh Fallah Iran 1.16h 12
William Godley United States 1.75h 6
Stevan Golubovic Serbia 4.89h 34
Sylvie Gorkova Czech Republic 2.00h 0
Mitja Govedic Slovenia 1.37h 9
Wayne T. Hally United States 12.70h 20
Vilem Heblik Czech Republic 12.00h 36
Ken Hodonsky United States 2.15h 2
Jakub Koukal Czech Republic 17.00h 63
Anna S. Levina Israel 2.80h 19
Semion Levin Israel 1.49h 14
Mike Linnolt United States 1.57h 13
Jer Nan Lou Taiwan 0.43h 5
Jose Luis Maestre Garcia Spain 1.13h 12
Qiang Ma China 4.00h 6
Pierre Martin Canada 4.91h 4
Jai Mehta India 1.66h 1
Koen Miskotte Netherlands 5.05h 0
Hermitanio Quinto Philippines 0.92h 3
Ella Ratz Israel 0.80h 4
Jurgen Rendtel Germany 9.78h 86
Branislav Savic Serbia 5.33h 29
Andrey Semenuta Kazakhstan 1.30h 0
Sanket Sen India 1.02h 1
Costantino Sigismondi Italy 1.05h 0
Wesley Stone United States 1.44h 9
Richard Taibi United States 6.63h 26
Shigeo Uchiyama Japan 0.67h 7
Michel Vandeputte Belgium 1.40h 1
Kristina Veljkovic Serbia 1.33h 13
Valentin Velkov Bulgaria 0.95h 7
Xingkai Wang China 0.77h 3
Weizhou Zeng China 2.18h 2

Data access

Create your own analysis. The files below can be opened using Excel:
leo2010_rate.csv (number of meteors per interval per observer)
leo2010_magn.csv (number of meteors per magnitude bin per observer)

Credits and references

The information on this page may be distributed freely provided credit is given to the International Meteor Organization (IMO) and, when possible, to the individual observers. The computer facilities to generate this page are provided by the Urania Public Observatory in Belgium and Armagh Observatory in Northern Ireland.

References:

  1. Rendtel J. and Arlt R., editors (2009). Handbook for meteor observations; Chapter 9, Analyses and Calculations. International Meteor Organization. ISBN 978-2-87355-020-2.
  2. Koschack R., Rendtel J. (1990). Determination of spatial number density and mass index from visual meteor observations (II). WGN 18, 119-140.