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Quadrantids 2013: visual data quicklook

Introduction

This page shows automated results of the Quadrantids 2013, 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 May 6 at 11:45 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 = 137 based on 324 Quadrantids reported in 62 intervals, assuming population index r = 2.1

ZHR graph

Time (UTC)Solarlon nINT nQUA ZHR Particle density
2013-01-02 20:05 282.421 2 12 55±15 94 / 109·km3
2013-01-03 10:20 283.026 2 11 137±40 234 / 109·km3
2013-01-03 11:25 283.072 3 27 101±19 172 / 109·km3
2013-01-03 12:41 283.126 4 37 73±12 124 / 109·km3
2013-01-03 13:44 283.171 7 77 97±11 165 / 109·km3
2013-01-03 17:19 283.323 4 12 70±19 119 / 109·km3
2013-01-03 18:22 283.367 4 15 68±17 116 / 109·km3
2013-01-03 19:29 283.415 6 34 96±16 164 / 109·km3
2013-01-03 20:25 283.455 7 47 129±19 220 / 109·km3
2013-01-03 21:36 283.505 4 19 74±17 126 / 109·km3
2013-01-03 22:11 283.530 2 12 70±19 119 / 109·km3
2013-01-04 00:03 283.609 1 8 55±18 94 / 109·km3
2013-01-05 18:39 285.418 1 0 31±31 53 / 109·km3
2013-01-05 20:22 285.491 13 10 11±3 19 / 109·km3
2013-01-06 01:21 285.702 2 3 4±2 7 / 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 20 observers in 10 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

ObserverCountryTeffnQUA
Seokhee Cho South Korea 1.40h 1
Jaros?aw Dygos Poland 3.00h 6
William Godley United States 1.08h 20
Valentin Grigore Romania 1.79h 5
Amir Hasanzadeh Iran 0.95h 6
Davood Hemmati Iran 1.05h 5
Carl Hergenrother United States 0.95h 29
Greg Jones United States 1.00h 11
Huahui Li China 2.04h 8
Qiang Ma China 2.00h 10
Bruce Mccurdy Canada 1.50h 45
Constantin Psenitchi Romania 1.32h 12
Andres Risi Argentina 0.60h 1
Kai Schultze Germany 0.45h 1
Wesley Stone United States 1.80h 58
Fengwu Sun China 0.55h 4
Jurgen Rendtel Germany 2.20h 20
Shigeo Uchiyama Japan 3.60h 69
Weizhou Zeng China 6.18h 68

Data access

Create your own analysis. The files below can be opened using Excel:
qua2013_rate.csv (number of meteors per interval per observer)
qua2013_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.