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Orionids 2012: visual data quicklook

Introduction

This page shows automated results of the Orionids 2012, based on visual observations reported by citizen scientists 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

Note that the data will finally go into the Visual Meteor Database (VMDB) with manual inspection and rectifications. We are curretly completing the files of 2008-2011. The VMDB is an enormous project - any help will be greatly appreciated.

Page generated: 2013 June 13 at 17:00 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 = 44 based on 2984 Orionids reported in 558 intervals, assuming population index r = 2.5

ZHR graph

Time (UTC)Solarlon nINT nORI ZHR Particle density
2012-10-11 00:53 197.939 6 12 8±2 17 / 109·km3
2012-10-12 09:54 199.301 5 16 8±2 17 / 109·km3
2012-10-13 01:45 199.954 1 5 6±2 13 / 109·km3
2012-10-14 06:01 201.121 4 11 5±1 11 / 109·km3
2012-10-15 21:09 202.738 3 13 9±2 19 / 109·km3
2012-10-17 04:42 204.043 6 23 10±2 21 / 109·km3
2012-10-17 21:49 204.751 9 21 12±3 25 / 109·km3
2012-10-18 01:55 204.921 8 69 18±2 38 / 109·km3
2012-10-18 09:28 205.233 3 25 15±3 32 / 109·km3
2012-10-18 22:09 205.758 7 20 19±4 40 / 109·km3
2012-10-19 01:46 205.908 10 59 23±3 49 / 109·km3
2012-10-19 08:30 206.186 4 46 21±3 44 / 109·km3
2012-10-19 14:48 206.447 4 23 18±4 38 / 109·km3
2012-10-19 23:11 206.795 37 183 15±1 32 / 109·km3
2012-10-20 02:03 206.913 27 258 20±1 42 / 109·km3
2012-10-20 08:36 207.185 7 72 25±3 53 / 109·km3
2012-10-20 13:31 207.389 4 20 43±9 91 / 109·km3
2012-10-20 18:36 207.599 6 20 26±6 55 / 109·km3
2012-10-20 23:20 207.795 106 416 21±1 44 / 109·km3
2012-10-21 01:42 207.893 64 387 21±1 44 / 109·km3
2012-10-21 07:40 208.141 13 89 25±3 53 / 109·km3
2012-10-21 11:00 208.279 13 89 24±3 51 / 109·km3
2012-10-21 20:57 208.691 9 20 22±5 46 / 109·km3
2012-10-21 23:57 208.816 76 363 19±1 40 / 109·km3
2012-10-22 04:12 208.992 9 92 21±2 44 / 109·km3
2012-10-22 08:45 209.181 14 98 23±2 49 / 109·km3
2012-10-22 21:38 209.715 7 21 19±4 40 / 109·km3
2012-10-23 00:18 209.826 62 239 13±1 27 / 109·km3
2012-10-23 04:23 209.995 3 25 18±4 38 / 109·km3
2012-10-23 09:00 210.186 8 61 25±3 53 / 109·km3
2012-10-23 13:35 210.377 3 29 44±8 93 / 109·km3
2012-10-23 22:12 210.734 4 21 14±3 30 / 109·km3
2012-10-24 03:16 210.945 4 45 21±3 44 / 109·km3
2012-10-24 10:00 211.224 4 46 19±3 40 / 109·km3
2012-10-25 07:41 212.125 3 26 15±3 32 / 109·km3
2012-10-25 22:56 212.758 2 17 13±3 27 / 109·km3
2012-10-28 04:15 214.974 1 4 8±4 17 / 109·km3
2012-11-07 22:16 225.735 2 0 1±1 2 / 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 73 observers in 29 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

ObserverCountryTeffnORI
Rainer Arlt Germany 2.43h 6
Marina Arnaut Serbia 2.57h 29
Tom Axelsen Denmark 0.80h 1
Sara Belejova Slovakia 6.44h 56
Nina Bogdanovic Serbia 2.25h 20
Josafary Campelo Brazil 0.48h 2
Yi Cao China 0.33h 5
Nicolae Adrian Corlaci Romania 0.84h 4
Klemen Cotar Slovenia 3.83h 34
Tibor Csörgei Slovakia 1.50h 20
Anderson Dantas Brazil 1.00h 12
Alex Daskalakis Greece 0.18h 3
Mark Davis United States 3.98h 32
Chander Devgun India 1.45h 25
Sietse Dijkstra Netherlands 2.02h 8
John Drummond New Zealand 1.00h 1
Audrius Dubietis Lithuania 2.85h 5
Frank Enzlein Germany 6h 55
Ivanka Getsova Bulgaria 13.7h 70
Sylvie Gorkova Czech Republic 6.00h 26
Oliver Hanke Germany 1.00h 4
Milada Jakubecova Slovakia 8.08h 64
Karoly Jonas Hungary 26.07h 151
Javor Kac Slovenia 14.49h 222
Jozef Karlik Slovakia 8.08h 33
Laszlo Kocsmaros Serbia 3.46h 34
Roman Kovalyk Italy 2h 5
Pete Kozich United States 0.53h 8
Tomasz Lenart Poland 5.28h 47
Michael Linnolt United States 1.3h 13
Qiang Ma China 0.50h 9
Adam Marsh Australia 1.25h 0
Pierre Martin Canada 5.12h 82
Maru\v{s}ka Mole Slovenia 1.25h 16
Alexsandr Morozov Russia 1.25h 2
Marian Mraz Slovakia 5.32h 33
Michael Nolle Malta 1.92h 13
Michal Palo Slovakia 8.08h 35
Martin Polak Slovakia 1.00h 4
Corey Poynton Australia 2.00h 1
Sasha Prokofyev Russia 2.77h 1
Vesselina Sadovska Bulgaria 10.05h 61
Christian Schmiel Germany 2.28h 2
Kai Schultze Germany 1.14h 5
Stanislav Simkovic Slovakia 2.22h 20
Katarina Skopalova Slovakia 4.4h 31
Vesna Slavkovic Serbia 5.7h 45
Florin Stancu Romania 2.93h 28
Wesley Stone United States 2.00h 36
Bsu Students Russia 1.00h 7
Adam Szabo Hungary 1.97h 25
Richard Taibi United States 1.72h 10
Csilla Tepliczky Hungary 8.01h 50
Jurgen Rendtel Germany 15.31h 103
Michel Vandeputte Belgium 21h 93
Terrence Ross United States 43.58h 459
Zdenek Komarek Slovakia 8.08h 50
Alexandr Maidik Ukraine 6.65h 78
Christoph Gerber Germany 11.65h 27
Branislav Savic Serbia 13.25h 142
Pierre Bader Germany 6.4h 30
Maciek Myszkiewicz Poland 5h 8
Jakub Koukal Czech Republic 19h 157
Salvador Aguirre Mexico 2.00h 17
Shigeo Uchiyama Japan 1.50h 18
Peter Van Leuteren Netherlands 3.00h 13
Kristina Veljkovic Serbia 9.32h 74
William Watson United States 3.47h 20
Thomas Weiland Austria 10.5h 141
Alexandrina Yaneva Bulgaria 5.16h 24
Alexandrina Yaneva Bulgaria 3.92h 25
Igor Zahornacky Slovakia 1.11h 5
Ana Zegarac Serbia 3.59h 29
Weizhou Zeng China 1.28h 6

Data access

Create your own analysis. The files below can be opened using Excel:
ori2012_rate.csv (number of meteors per interval per observer)
ori2012_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.