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Draconids 2011: visual data quicklook

Introduction

This page shows automated results of the Draconids 2011, 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 8 October in detail (NEW)
Immy Observer statistics
Immy Data access
Immy Credits and references

Page generated: 2012 January 2 at 13:05 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 = 304 based on 6948 Draconids reported in 1807 intervals, assuming population index r = 2.8

ZHR graph

Time (UTC)Solarlon nINT nDRA ZHR Particle density
2011-10-06 03:00 192.358 1 0 5±5 51 / 109·km3
2011-10-06 21:01 193.098 6 1 1±1 10 / 109·km3
2011-10-07 01:01 193.262 18 5 2±1 20 / 109·km3
2011-10-07 20:01 194.043 30 11 7±2 72 / 109·km3
2011-10-08 02:42 194.317 4 0 5±5 51 / 109·km3
2011-10-08 14:30 194.802 5 20 54±12 552 / 109·km3
2011-10-08 15:21 194.838 7 20 31±7 317 / 109·km3
2011-10-08 15:59 194.864 9 21 23±5 235 / 109·km3
2011-10-08 16:30 194.885 7 20 22±5 225 / 109·km3
2011-10-08 16:51 194.899 13 20 33±7 338 / 109·km3
2011-10-08 17:19 194.918 11 20 38±8 389 / 109·km3
2011-10-08 17:33 194.928 12 35 32±5 327 / 109·km3
2011-10-08 17:44 194.936 18 24 49±10 501 / 109·km3
2011-10-08 17:55 194.943 20 24 49±10 501 / 109·km3
2011-10-08 18:05 194.950 25 52 62±9 634 / 109·km3
2011-10-08 18:15 194.957 26 58 58±8 593 / 109·km3
2011-10-08 18:27 194.965 50 118 35±3 358 / 109·km3
2011-10-08 18:36 194.971 48 112 86±8 880 / 109·km3
2011-10-08 18:45 194.978 53 102 79±8 808 / 109·km3
2011-10-08 18:55 194.984 52 164 81±6 829 / 109·km3
2011-10-08 19:06 194.992 60 191 87±6 890 / 109·km3
2011-10-08 19:16 194.999 79 268 114±7 1166 / 109·km3
2011-10-08 19:26 195.006 91 390 95±5 972 / 109·km3
2011-10-08 19:36 195.012 96 418 134±7 1371 / 109·km3
2011-10-08 19:46 195.019 117 501 198±9 2025 / 109·km3
2011-10-08 19:55 195.026 117 575 230±10 2353 / 109·km3
2011-10-08 20:05 195.033 131 874 277±9 2833 / 109·km3
2011-10-08 20:15 195.039 129 873 304±10 3110 / 109·km3
2011-10-08 20:25 195.046 106 600 190±8 1944 / 109·km3
2011-10-08 20:35 195.053 95 402 161±8 1647 / 109·km3
2011-10-08 20:45 195.060 84 381 130±7 1330 / 109·km3
2011-10-08 20:55 195.067 77 238 105±7 1074 / 109·km3
2011-10-08 21:05 195.074 57 138 79±7 808 / 109·km3
2011-10-08 21:15 195.080 48 118 68±6 696 / 109·km3
2011-10-08 21:25 195.087 37 47 40±6 409 / 109·km3
2011-10-08 21:35 195.094 19 40 72±11 736 / 109·km3
2011-10-08 21:45 195.101 11 27 59±11 604 / 109·km3
2011-10-08 21:59 195.111 13 20 50±11 511 / 109·km3
2011-10-08 23:55 195.190 24 19 26±6 266 / 109·km3
2011-10-09 04:35 195.382 1 1 53±37 542 / 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:

8 October in detail

ZHR graph

Time (UTC)Solarlon nINT nDRA ZHR Particle density
2011-10-08 16:29 194.884 7 20 20±4 205 / 109·km3
2011-10-08 16:38 194.890 10 24 25±5 256 / 109·km3
2011-10-08 17:03 194.908 12 10 51±15 522 / 109·km3
2011-10-08 17:26 194.923 7 24 50±10 511 / 109·km3
2011-10-08 17:31 194.926 6 25 25±5 256 / 109·km3
2011-10-08 17:40 194.933 13 20 52±11 532 / 109·km3
2011-10-08 17:51 194.940 25 21 51±11 522 / 109·km3
2011-10-08 18:01 194.947 14 20 51±11 522 / 109·km3
2011-10-08 18:05 194.950 13 32 61±11 624 / 109·km3
2011-10-08 18:11 194.954 10 21 72±15 736 / 109·km3
2011-10-08 18:16 194.958 14 39 68±11 696 / 109·km3
2011-10-08 18:21 194.961 16 24 37±7 378 / 109·km3
2011-10-08 18:27 194.965 20 26 52±10 532 / 109·km3
2011-10-08 18:31 194.968 34 106 38±4 389 / 109·km3
2011-10-08 18:36 194.971 22 39 110±17 1125 / 109·km3
2011-10-08 18:41 194.975 29 74 74±9 757 / 109·km3
2011-10-08 18:46 194.978 31 63 80±10 818 / 109·km3
2011-10-08 18:52 194.982 28 80 74±8 757 / 109·km3
2011-10-08 18:57 194.985 22 64 85±11 869 / 109·km3
2011-10-08 19:02 194.989 24 73 97±11 992 / 109·km3
2011-10-08 19:06 194.992 29 103 92±9 941 / 109·km3
2011-10-08 19:11 194.996 37 100 92±9 941 / 109·km3
2011-10-08 19:16 194.999 43 149 124±10 1268 / 109·km3
2011-10-08 19:21 195.002 37 160 118±9 1207 / 109·km3
2011-10-08 19:26 195.006 44 174 119±9 1217 / 109·km3
2011-10-08 19:31 195.009 49 224 89±6 910 / 109·km3
2011-10-08 19:36 195.013 53 231 164±11 1678 / 109·km3
2011-10-08 19:42 195.016 55 251 131±8 1340 / 109·km3
2011-10-08 19:47 195.020 56 212 173±12 1770 / 109·km3
2011-10-08 19:52 195.023 61 316 236±13 2414 / 109·km3
2011-10-08 19:56 195.026 63 262 198±12 2025 / 109·km3
2011-10-08 20:02 195.030 64 381 267±14 2731 / 109·km3
2011-10-08 20:07 195.034 68 521 290±13 2966 / 109·km3
2011-10-08 20:12 195.037 66 444 306±15 3130 / 109·km3
2011-10-08 20:17 195.040 66 412 293±14 2997 / 109·km3
2011-10-08 20:22 195.044 59 416 254±12 2598 / 109·km3
2011-10-08 20:26 195.047 49 233 153±10 1565 / 109·km3
2011-10-08 20:32 195.051 48 227 186±12 1903 / 109·km3
2011-10-08 20:36 195.054 46 199 146±10 1493 / 109·km3
2011-10-08 20:42 195.058 41 176 163±12 1667 / 109·km3
2011-10-08 20:46 195.060 44 215 119±8 1217 / 109·km3
2011-10-08 20:52 195.064 36 99 109±11 1115 / 109·km3
2011-10-08 20:56 195.067 43 139 104±9 1064 / 109·km3
2011-10-08 21:02 195.071 23 70 96±11 982 / 109·km3
2011-10-08 21:06 195.074 35 80 71±8 726 / 109·km3
2011-10-08 21:12 195.078 21 58 95±12 972 / 109·km3
2011-10-08 21:15 195.081 26 58 56±7 573 / 109·km3
2011-10-08 21:21 195.085 17 29 77±14 788 / 109·km3
2011-10-08 21:25 195.087 22 23 27±6 276 / 109·km3
2011-10-08 21:32 195.092 14 33 91±16 931 / 109·km3
2011-10-08 21:38 195.096 12 20 52±11 532 / 109·km3
2011-10-08 21:45 195.101 7 20 63±14 644 / 109·km3
2011-10-08 21:57 195.109 13 20 49±11 501 / 109·km3
2011-10-08 22:18 195.124 10 8 36±12 368 / 109·km3
2011-10-08 22:53 195.147 6 5 33±13 338 / 109·km3
2011-10-08 23:14 195.162 1 2 104±60 1064 / 109·km3

Observer statistics

Data has been received from 128 observers in 28 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

ObserverCountryTeffnDRA
Ioan Agavriloaiei Romania 1.67h 0
Salvador Aguirre Mexico 7.83h 2
Juan Carlos Alcazar Fernandez Spain 2.20h 42
Karl Antier France 4.88h 157
Rainer Arlt Germany 1.65h 63
Jure Atanackov Slovenia 3.35h 238
Luc Bastiaens Belgium 2.78h 98
Zora Beljic Serbia 1.96h 21
Orlando Benítez Sánchez Spain 2.20h 125
Felix Bettonvil Netherlands 1.25h 2
Suresh Bhattarai Nepal 2.00h 4
Jens Briesemeister Germany 2.40h 62
Stéphane Bruchet France 1.54h 28
Students Bsu Russia 81.26h 1170
Vladimir Burgic Serbia 1.33h 0
Rafael Campillos Ladero Spain 1.00h 46
Jakub Cerny Czech Republic 1.88h 100
Marcin Chwa?a Poland 0.65h 8
Filip Colakovic Serbia 1.33h 7
Lorenzo Comolli Italy 2.48h 62
Ilie Cosovanu Romania 0.42h 2
Håkon Dahle Norway 2.11h 107
Anderson Dantas Brazil 2.91h 2
Luigi D'argliano Italy 0.98h 37
C B Devgun Space India 4.00h 58
Jose Vicente Diaz Martinez Spain 2.33h 16
Sietse Dijkstra Netherlands 3.57h 99
Jan Ebr Czech Republic 1.64h 91
Ivana Ebrova Czech Republic 1.88h 78
Frank Enzlein Germany 2.21h 73
Tomasz Fajfer Poland 1.00h 25
Reyhaneh Falah Iran 2.73h 28
Richard Fleet United Kingdom 0.65h 22
Stela Frencheva Germany 0.70h 44
Stefan Fuks Serbia 6.20h 13
Kai Frode Gaarder Norway 2.99h 172
Sylvie Gorkova Czech Republic 2.99h 49
Mitja Govedi? Slovenia 1.00h 46
Matthias Growe Germany 1.69h 97
Piotr Guzik Poland 1.15h 79
Shy Halatzi Israel 4.07h 51
Oliver Hanke Germany 2.02h 58
Amir Hasanzadeh Iran 0.81h 4
Leo Holmberg Finland 1.53h 45
Kamil Hornoch Czech Republic 4.83h 121
Jan Horsky Czech Republic 1.56h 63
Antal Igaz Hungary 2.13h 51
Jelisaveta Ilic Serbia 4.01h 10
Nevena Ilic Serbia 3.74h 24
Carl Johannink Germany 1.72h 92
Javor Kac Slovenia 3.57h 137
Timo Karhula Sweden 0.75h 25
Roy Keeris Netherlands 0.72h 18
Stanislav Korotkiy Russia 3.38h 58
Janez Kos Slovenia 2.76h 167
Roman Kostenko Ukraine 4.85h 39
Jakub Koukal Czech Republic 2.08h 110
Roman Kovalyk Italy 0.68h 2
Martin Krueger Germany 1.00h 15
Andrey Kychyzhyyev Ukraine 4.33h 18
Marina Kychyzhyyeva Ukraine 4.78h 38
Jens Lacorne France 2.00h 35
Marco Langbroek Netherlands 2.77h 248
Mariusz Lemiecha Poland 2.99h 113
Anna Levin Israel 2.71h 2
Anna Levina Israel 5.16h 38
Hartwig Luethen Germany 2.55h 71
Jose Luis Maestre Garcia Spain 1.95h 65
Alexandr Maidik Ukraine 6.00h 9
Maria Makarova Ukraine 4.02h 16
Veikko Mäkelä Finland 0.26h 1
Alexander Manannikov Russia 0.90h 9
Dasha Maskovay Ukraine 4.28h 15
Aleksandar Matic Serbia 2.02h 24
Ivo Micek Czech Republic 0.61h 30
Marco Micheli Italy 0.50h 30
Maslov Mikhail Russia 1.97h 0
Jose Carlos Millan Spain 2.17h 29
Artem Mirgorod Ukraine 2.05h 27
Jakub Mirocha Poland 1.72h 41
Koen Miskotte Netherlands 0.94h 11
Sirko Molau Germany 2.16h 72
Maciej Myszkiewicz Poland 5.43h 93
Nikolay Nikolaev Russia 2.00h 18
Artyom Novichonok Russia 1.33h 9
Francisco Ocaña González Spain 1.70h 56
Peter I. Papics Hungary 0.52h 46
Lovro Pavletic Croatia 1.58h 49
Anna Pavlova Ukraine 3.34h 25
Konstantin Polyakov Russia 4.45h 14
Sasha Prokofyev Russia 0.22h 1
Rok Pucer Slovenia 1.80h 46
Jatin Rathod India 0.46h 5
Ella Ratz Israel 2.83h 15
Jurgen Rendtel Germany 3.19h 90
Raluca Rufu Israel 2.50h 26
Miguel Santana Gutiérrez Spain 2.03h 43
Krisztian Sarneczky Hungary 2.13h 47
Mikiya Sato Japan 2.00h 19
Tomoko Sato Japan 2.00h 10
Branislav Savic Serbia 6.32h 32
Christian Schmiel Germany 1.37h 68
Alex Scholten Netherlands 0.85h 31
Kai Schultze Germany 3.67h 83
Andrzej Skoczewski Poland 2.46h 52
Yaser Soleimani Iran 3.25h 22
Ulrich Sperberg Germany 2.92h 58
Israel Tejera Falcon Spain 2.03h 72
Seityagiya Terlekchi Ukraine 1.87h 7
Snezana Todorovic Serbia 5.53h 18
Yasuhiro Tonomura Japan 2.40h 6
Josep M. Trigo-rodríguez Spain 1.49h 68
Blanca Troughton Luque Spain 0.93h 11
Shigeo Uchiyama Japan 1.99h 17
Michel Vandeputte Belgium 2.99h 250
Wienie Van Der Oord Israel 1.74h 3
Peter Van Leuteren Netherlands 3.33h 153
Birgit Van Opstal Belgium 2.68h 76
Glynis Van Uden Netherlands 0.34h 1
Jovan Vasiljevic Serbia 1.33h 1
Marina Vlajnic Serbia 1.58h 10
Marta Volkova Ukraine 2.67h 15
William Watson United States 1.13h 2
Mariusz Wisniewski Poland 2.78h 91
A.o. Woost Germany 3.68h 101
Ilkka Yrjölä Finland 1.03h 23
Raziyeh Zahedi Iran 1.50h 10
Weizhou Zeng China 1.02h 0
Tianwei Zhang China 1.25h 4
Peter Zimnikoval Slovakia 1.17h 16

Data access

Create your own analysis. The files below can be opened using Excel:
dra2011_rate.csv (number of meteors per interval per observer)
dra2011_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 ESA/RSSD and Armagh Observatory.

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.