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eta-Aquariids 2013: visual data quicklook

Introduction

This page shows automated results of the eta-Aquariids 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 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 = 135 based on 898 eta-Aquariids reported in 186 intervals, assuming population index r = 2.4

ZHR graph

Time (UTC)Solarlon nINT nETA ZHR Particle density
2013-04-20 07:52 30.215 2 0 6±6 11 / 109·km3
2013-04-22 02:10 31.934 2 0 15±15 27 / 109·km3
2013-05-01 01:58 40.680 1 1 14±10 25 / 109·km3
2013-05-02 02:11 41.660 5 19 25±6 46 / 109·km3
2013-05-03 23:27 43.489 10 40 35±5 64 / 109·km3
2013-05-05 00:15 44.490 9 31 74±13 135 / 109·km3
2013-05-05 01:36 44.545 6 43 72±11 131 / 109·km3
2013-05-05 04:16 44.652 3 42 73±11 133 / 109·km3
2013-05-05 21:56 45.366 6 31 101±18 184 / 109·km3
2013-05-06 01:05 45.493 10 41 101±16 184 / 109·km3
2013-05-06 02:45 45.560 6 67 135±16 246 / 109·km3
2013-05-06 15:06 46.059 4 30 132±24 240 / 109·km3
2013-05-06 18:11 46.183 3 32 121±21 220 / 109·km3
2013-05-07 01:06 46.462 11 30 71±13 129 / 109·km3
2013-05-07 02:20 46.512 8 68 96±12 175 / 109·km3
2013-05-07 04:29 46.598 12 61 63±8 115 / 109·km3
2013-05-07 08:28 46.759 4 30 88±16 160 / 109·km3
2013-05-07 10:19 46.833 3 31 77±14 140 / 109·km3
2013-05-08 01:50 47.459 5 36 63±10 115 / 109·km3
2013-05-08 03:48 47.539 4 32 38±7 69 / 109·km3
2013-05-08 16:51 48.065 5 31 30±5 55 / 109·km3
2013-05-09 23:45 49.311 11 30 23±4 42 / 109·km3
2013-05-10 23:50 50.281 5 38 25±4 46 / 109·km3
2013-05-12 10:53 51.692 6 34 18±3 33 / 109·km3
2013-05-14 08:51 53.540 13 21 8±2 15 / 109·km3
2013-05-16 13:56 55.674 10 31 9±2 16 / 109·km3
2013-05-18 14:32 57.624 12 24 6±1 11 / 109·km3
2013-05-20 08:06 59.291 7 18 7±2 13 / 109·km3
2013-05-22 02:13 60.979 3 6 6±2 11 / 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 53 observers in 22 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

ObserverCountryTeffnETA
Alexandre Amorim Brazil 3.12h 11
Janos Bakos Hungary 1.76h 9
Adair Cardoso Brazil 1.95h 1
Neeraja Chinchalkar India 2.00h 12
Seokhee Cho South Korea 0.73h 6
Tim Cooper South Africa 15.66h 256
Daniel Cosovanu Romania 0.65h 6
Ilie Cosovanu Romania 0.75h 9
Lucian-mihai Cosovanu Romania 1.67h 8
Enrique De Ferra Fantín Spain 1.42h 22
Ana ?egarac Serbia 1.46h 6
Shy Halatzi Israel 1.50h 13
Devika Hardikar India 2.00h 10
Gabriel Hickel Brazil 1.59h 35
Ilija Ivanovic Serbia 2.47h 4
Stanislav Korotkiy Russia 3.17h 37
Marina Kychyzhyyeva Ukraine 7.56h 34
Tomasz Lenart Poland 0.50h 0
Florin Leu Romania 1.63h 11
Anna Levin Israel 2.18h 23
Michal Lewenstein Israel 0.50h 3
Michael Linnolt United States 0.87h 25
Maria Makarova Ukraine 9.55h 29
Ivana Marjanovic Serbia 1.77h 6
Daria Maskova Ukraine 2.60h 3
Bruce Mccurdy Canada 1.50h 9
Frederic Merlin France 0.92h 9
Alexsandr Morozov Russia 2.05h 12
Anna Pavlova Ukraine 5.63h 13
Albina Petrova Russia 2.67h 38
Ella Ratz Israel 1.54h 15
Nadav Rotenberg Israel 1.00h 10
Mikiya Sato Japan 0.83h 17
Tomoko Sato Japan 1.00h 20
Dasa Spasojevic Serbia 2.29h 4
Ilan Tchenak Israel 1.15h 10
Tamara Tchenak Israel 0.67h 7
Ross Terrence United States 2.17h 7
Jurgen Rendtel Germany 47.25h 198
Branislav Savic Serbia 7.59h 13
Maciek Myszkiewicz Poland 4.08h 2
Michel Vandeputte Belgium 5.00h 20
Branislav Savic Serbia 1.50h 7
Terrence Ross United States 27.71h 127
Sasha Prokofyev Russia 7.69h 70
Pierre Bader Germany 2.80h 5
Koen Miskotte Netherlands 6.56h 13
Sasha Prokophiev Russia 1.00h 10
Shigeo Uchiyama Japan 1.17h 13
Peter Van Leuteren Netherlands 0.50h 3
Alla Volkova Ukraine 2.49h 5
Marta Volkova Ukraine 2.31h 1
Selim Yakybov Ukraine 6.98h 13
Yidong Yu China 2.35h 2
Weizhou Zeng China 0.77h 4
Tianwei Zhang China 0.67h 3
Roman Zvagelsky Ukraine 2.71h 13

Data access

Create your own analysis. The files below can be opened using Excel:
eta2013_rate.csv (number of meteors per interval per observer)
eta2013_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.