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Lyrids 2010: visual data quicklook

Introduction

This page shows automated results of the Lyrids 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 July 21 at 11:40 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 = 20 based on 476 Lyrids reported in 194 intervals, assuming population index r = 2.1

ZHR graph

Time (UTC)Solarlon nINT nLYR ZHR Particle density
2010-04-12 01:02 21.881 5 3 1±0 1 / 109·km3
2010-04-13 23:05 23.762 1 2 3±2 4 / 109·km3
2010-04-15 04:33 24.965 3 3 2±1 3 / 109·km3
2010-04-17 05:57 26.981 13 16 2±0 3 / 109·km3
2010-04-18 03:41 27.866 18 21 2±0 3 / 109·km3
2010-04-19 14:57 29.303 12 14 3±1 4 / 109·km3
2010-04-20 12:02 30.160 19 31 3±1 4 / 109·km3
2010-04-21 03:24 30.785 9 30 7±1 10 / 109·km3
2010-04-22 01:03 31.666 10 32 10±2 14 / 109·km3
2010-04-22 03:43 31.774 8 30 11±2 16 / 109·km3
2010-04-22 17:18 32.326 11 33 19±3 27 / 109·km3
2010-04-22 21:20 32.490 10 30 20±4 29 / 109·km3
2010-04-22 22:45 32.548 12 30 12±2 17 / 109·km3
2010-04-23 00:01 32.599 10 33 11±2 16 / 109·km3
2010-04-23 01:03 32.641 14 66 14±2 20 / 109·km3
2010-04-23 02:01 32.680 16 63 12±2 17 / 109·km3
2010-04-23 12:53 33.121 10 27 10±2 14 / 109·km3
2010-04-24 23:45 34.537 13 12 4±1 6 / 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 47 observers in 16 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

ObserverCountryTeffnLYR
Moein Adnani Iran 0.50h 5
Salvador Aguirre Mexico 3.00h 8
Pierre Bader Germany 14.30h 56
Rafael G. Barrios B. Venezuela 0.92h 5
Dominika D?bek Poland 0.98h 3
Sietse Dijkstra Netherlands 3.42h 14
Dariusz Dorosz Poland 1.50h 2
Urszula Dzikowicz Poland 1.97h 6
Vilem Heblik Czech Republic 7.00h 26
Ken Hodonsky United States 1.98h 16
Carl Johannink Netherlands 1.53h 11
Angelika Ju?kiewicz Poland 0.98h 2
Jozef Karlik Slovakia 3h 2
Paulina Kawecka Poland 0.98h 4
Yann Kempf France 1.35h 4
Weronika Kokoszka Poland 0.98h 3
Zdenek Komarek Slovakia 6h 13
Slavomir Kosican Slovakia 3h 2
Jakub Koukal Czech Republic 21.00h 64
Aleksandra Lechowicz Poland 0.98h 1
Anna S. Levina Israel 1.50h 6
Yanzhe Liu United States 2.25h 8
Xin Li China 0.99h 9
Qiang Ma China 1.00h 8
Grigoris Maravelias Greece 2.89h 8
Artur Mencel Poland 0.98h 4
Katarzyna Mielczarek Poland 1.97h 2
Magdalena Mi?ek Poland 0.98h 3
Koen Miskotte Netherlands 14.69h 36
Sirko Molau Germany 1.17h 8
Karolina Paprocka Poland 1.97h 3
Krzysztof Patela Poland 0.98h 4
Dominika P?czek Poland 2.95h 8
Kinga Piasecka Poland 0.98h 3
Jurgen Rendtel Germany 14.48h 46
Branislav Savic Serbia 2.77h 12
Ivan M. Sergey Belarus 2.16h 3
Dariusz Sitek Poland 2.95h 6
Natalia Smus Poland 1.97h 3
Jiri Srba Czech Republic 4.00h 2
Pavel Svozil Czech Republic 1.50h 5
Richard Taibi United States 1.43h 1
Hendrik Vandenbruaene Belgium 1.17h 5
Michel Vandeputte Belgium 15.60h 64
Valentin Velkov Bulgaria 3.70h 24
Romana Vujasinovic Serbia 1.87h 4
Xiaofan Wei China 1.92h 15

Data access

Create your own analysis. The files below can be opened using Excel:
lyr2010_rate.csv (number of meteors per interval per observer)
lyr2010_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.