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Geminids 2012: visual data quicklook

Introduction

This page shows automated results of the Geminids 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 August 6 at 22:20 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 = 109 based on 22892 Geminids reported in 1663 intervals, assuming population index r = 2.2

ZHR graph

Time (UTC)Solarlon nINT nGEM ZHR Particle density
2012-12-04 20:45 252.936 3 3 26±13 63 / 109·km3
2012-12-06 01:09 254.137 6 3 3±2 7 / 109·km3
2012-12-07 00:43 255.134 5 6 6±2 15 / 109·km3
2012-12-08 13:37 256.695 4 19 8±2 20 / 109·km3
2012-12-09 14:00 257.728 4 13 9±2 22 / 109·km3
2012-12-10 16:03 258.832 10 25 8±2 20 / 109·km3
2012-12-10 23:26 259.144 5 29 10±2 24 / 109·km3
2012-12-11 04:18 259.350 6 21 9±2 22 / 109·km3
2012-12-11 08:43 259.538 3 47 20±3 49 / 109·km3
2012-12-11 15:52 259.840 5 24 17±3 41 / 109·km3
2012-12-11 22:33 260.124 9 128 24±2 59 / 109·km3
2012-12-12 04:41 260.383 3 38 27±4 66 / 109·km3
2012-12-12 08:53 260.561 11 126 57±5 139 / 109·km3
2012-12-12 15:13 260.830 8 66 47±6 115 / 109·km3
2012-12-12 20:39 261.060 63 648 61±2 149 / 109·km3
2012-12-13 00:03 261.205 130 1629 66±2 161 / 109·km3
2012-12-13 03:37 261.356 79 1060 67±2 163 / 109·km3
2012-12-13 08:19 261.555 79 1059 84±3 205 / 109·km3
2012-12-13 12:12 261.719 87 685 66±3 161 / 109·km3
2012-12-13 16:11 261.888 148 1776 104±2 254 / 109·km3
2012-12-13 20:08 262.056 462 8300 95±1 232 / 109·km3
2012-12-13 23:29 262.197 338 5124 109±2 266 / 109·km3
2012-12-14 03:57 262.387 67 946 109±4 266 / 109·km3
2012-12-14 07:45 262.548 64 653 84±3 205 / 109·km3
2012-12-14 14:09 262.819 5 21 60±13 146 / 109·km3
2012-12-14 19:04 263.028 26 172 30±2 73 / 109·km3
2012-12-14 22:10 263.160 22 231 23±2 56 / 109·km3
2012-12-15 13:05 263.792 4 26 10±2 24 / 109·km3
2012-12-16 11:28 264.741 2 8 6±2 15 / 109·km3
2012-12-18 01:50 266.368 5 6 2±1 5 / 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 160 observers in 40 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

ObserverCountryTeffnGEM
Ashwini Adivarekar India 2.04h 127
Alireza Akhlaghi Iran 0.17h 22
Jose Alvarellos United States 0.97h 26
Alexandre Amorim Brazil 1.76h 0
Tanapon Anankittikun Thailand 0.83h 11
Anuja Anil Parkar India 7.05h 142
Anuja Anil Parkar India 1.63h 19
Alberto Daniel Anunziato Argentina 0.90h 4
Rainer Arlt Germany 0.32h 7
Maria-magdalena Arnaudova Bulgaria 4.75h 217
Pratibha Aundhkar India 6.17h 206
Rupali Aundhkar India 5.00h 231
Siddhesh Aundhkar India 6.17h 189
Shrinivas Aundhkar India 6.98h 692
Payas Awadhutkar India 1.00h 45
Janos Bakos Hungary 3.32h 169
Felix Bettonvil Netherlands 17.69h 784
Felix Bettonvil Netherlands 6.78h 185
Suresh Bhattarai Nepal 1.00h 24
Josafary Campelo Brazil 0.77h 8
Yuhang Chen China 1.40h 8
Seokhee Cho South Korea 1.32h 26
Nicolae Adrian Corlaci Romania 0.20h 9
Ilie Cosovanu Romania 0.45h 22
Luigi D'argliano Italy 1.62h 65
Alex Daskalakis Greece 1.02h 19
Neha Das India 2.26h 88
Enrique De Ferra Fantín Spain 3.98h 147
Saniya Deshmukh India 6.32h 553
Jose Vicente Diaz Martinez Spain 1.00h 55
Sietse Dijkstra Netherlands 8.50h 345
Nikit Dongaonkar India 0.50h 12
Dariusz Dorosz Poland 1.67h 27
John Drummond New Zealand 1.00h 8
Jaros?aw Dygos Poland 3.33h 148
Garry Dymond Canada 5.50h 103
Frank Enzlein Germany 0.33h 20
Richard Fleet United Kingdom 3.5h 38
Richard Fleet United Kingdom 1.00h 14
Bo Gao China 0.42h 104
Ivanka Getsova Bulgaria 6.3h 312
Ganesh Ghugari India 1.00h 23
Shaneshwar Ghugal India 5.08h 130
Umesh Giri India 5.33h 231
William Godley United States 4.5h 101
Shy Halatzi Israel 3.42h 291
Carl Hergenrother United States 2.89h 162
Gabriel Hickel Brazil 0.98h 11
Karl Gauti Hjaltason Iceland 2.33h 75
Jane Houston Jones United States 3.25h 30
Chengyun Huang China 0.15h 1
Yingying Huang China 1.08h 7
Di Hu China 0.99h 1
Pooja Jaju India 6.17h 206
Karoly Jonas Hungary 11.61h 307
Manisha Kadam India 6.17h 475
Archana Kale India 1.35h 75
Jay Kansara India 7.38h 208
Sarang Karpate India 0.50h 35
Thomas Karlsson Sweden 1.92h 30
Omri Katz Israel 7.65h 303
Akshay Khachane India 7.18h 212
Elena Kolisheva Bulgaria 3.83h 172
Pradeep Korde India 6.17h 189
Roman Kostenko Ukraine 1.21h 123
Mangesh Kothari India 5.08h 189
Swati Kothari India 6.17h 189
Roman Kovalyk Italy 5.23h 86
Pete Kozich United States 1.72h 105
Rhishikesh Kulkarni India 2.93h 188
Sneha Kulkarni India 1.25h 21
Anna L Israel 2.13h 92
Tomasz Lenart Poland 2.91h 75
Anna Levin Israel 16.98h 777
Pingping Liang China 1.65h 16
Liangchen Li China 0.45h 5
Michael Linnolt United States 1.6h 21
Ruijia Li China 2.42h 14
Pin Liu China 0.75h 2
Hk Lkm Hong Kong 1.00h 45
Lin Luo China 6.17h 71
Saurabh Madankar India 8.96h 176
Santosh Mahato India 1.00h 7
Qiang Ma China 1.00h 4
Adam Marsh Australia 7.3h 41
Liad Marom Israel 4.59h 162
Mayuresh Marathe India 1.91h 30
Pierre Martin Canada 12.97h 824
Alastair Mcbeath United Kingdom 1.00h 30
Bruce Mccurdy Canada 3.00h 169
Fabrizio Melandri Italy 1.00h 34
Paresh Mhetre India 1.34h 17
Kianoosh Mohseni Iran 1.00h 91
Shraddha Mohapekar India 5.33h 231
Sirko Molau Germany 2.62h 96
Swapna Mote India 0.88h 23
Ben Nathaniel Israel 1.54h 61
Martin Nedved Czech Republic 3.73h 164
Basil Nikolau United States 1.33h 37
Pisit Nitiyanant Thailand 2.92h 150
Michael Nolle Malta 5.17h 140
Benítez Sánchez Orlando Spain 1.42h 15
Jyoti Petkar India 5.08h 130
Bhalchandra Phatak India 1.00h 34
Rahul Piraji Patil India 7.58h 168
Shalan Piraji Patil India 4.77h 207
Shalan Piraji Patil India 2.51h 55
Sasha Prokofyev Russia 1.75h 4
Pranav Pujari India 6.17h 475
Tushar Purohit India 0.50h 30
Ella Ratz Israel 3.15h 172
Jatin Rathod India 5.13h 104
Mario Raymundo Philippines 5.76h 121
Jurgen ^rendtel Germany 2.33h 53
Umesh Rokde India 6.17h 206
Raluca Rufu Israel 6.9h 359
Mikiya Sato Japan 1.50h 111
Tomoko Sato Japan 1.50h 113
Kai Schultze Germany 0.20h 6
Hideki Seo Japan 2.00h 135
Jonathan Shanklin United Kingdom 3.00h 63
Manasi Shaha India 3.09h 193
Nadeem Md Shaikh India 5.00h 244
Dhanashree Shinde India 1.06h 46
Wei Shi China 0.50h 14
Siddharth Shrivastava India 1.53h 60
Costantino Sigismondi Italy 0.5h 5
Priya Singh India 5.00h 244
Harminer Kaur Sohi India 6.33h 553
Martin Stojanovski Macedonia 1.58h 192
Wesley Stone United States 5.19h 319
Bsu Students Russia 25h 382
Fengwu Sun China 0.60h 8
Richard Taibi United States 3.13h 98
Utkarsh Tamboli India 6.17h 475
Ilan Tchenak Israel 3.31h 291
Tamara Tchenak Israel 16.16h 778
Istvan Tepliczky Hungary 7.07h 209
Kazumi Terakubo Japan 1.50h 142
Sonal Thorve India 2.00h 10
Akanksha Tiwary India 0.25h 5
Alexandr Maidik Ukraine 0.40h 1
Michel Vandeputte Belgium 15.58h 372
William Watson United States 6.99h 480
Terrence Ross United States 21.34h 551
Branislav Savic Serbia 5.02h 245
Pierre Bader Germany 1.88h 57
Javor Kac Slovenia 6.59h 288
Salvador Aguirre A. Mexico 0.30h 1
Chih-kuan Tung United States 1.32h 74
Shigeo Uchiyama Japan 3.5h 275
Alice Unger Israel 2.75h 25
Devdatta Urankar India 3.01h 33
Hendrik Vandenbruaene Belgium 2.16h 73
Wienie Van Der Oord Israel 0.82h 25
Tejaswini Varade India 6.08h 125
Daniel Verde Van Ouytsel Spain 0.58h 51
Akshay Vibhute India 1.50h 56
Spandan Waghmare India 1.92h 52
Thomas Weiland Austria 21.75h 943
William William United States 1.50h 59
Oliver Wusk Germany 0.33h 11
Jiaqing Yang China 0.41h 25
Omkar Yarguddi India 0.33h 12
Quanzhi Ye China 1.42h 105
Kim Youmans United States 2.00h 70
Fengfang Yuan China 3.00h 107
Weizhou Zeng China 3.82h 1
Jingyi Zhao China 0.33h 22
Tianwei Zhang China 3.25h 1
Qinpo Zheng China 2.91h 99
Yufeng Zhu China 1.33h 17

Data access

Create your own analysis. The files below can be opened using Excel:
gem2012_rate.csv (number of meteors per interval per observer)
gem2012_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.