Perseids 2009: visual data quicklook

Introduction

This page shows automated results of the Perseids 2009, 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 fully 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 12-13 August in detail (NEW)
Immy Observer statistics
Immy Data access

Page generated: 2010 April 26 at 14:59 UTC.

Activity profile

ZHRmax = 173 based on 14273 reported Perseids, assuming population index r = 2.0.
ZHR (Zenithal Hourly Rate) is the number of meteors an observer would see under a dark sky with the radiant of the shower in zenith.

ZHR graph

Time (UTC)SolarlonnINTnPERZHR
2009-07-19 23:30117.27725505±1
2009-07-21 17:33118.95131787±1
2009-07-23 20:54120.99423606±1
2009-07-25 14:10122.63732827±1
2009-07-26 06:18123.27935816±1
2009-07-26 23:47123.97622806±1
2009-07-27 15:10124.58830818±1
2009-07-27 23:19124.91332827±1
2009-07-28 06:41125.20627828±1
2009-07-28 22:22125.83137879±1
2009-07-29 00:33125.91827899±1
2009-07-29 19:32126.67434829±1
2009-07-29 23:59126.85127879±1
2009-07-30 10:02127.25230806±1
2009-07-31 00:41127.83637807±1
2009-07-31 20:57128.643208411±1
2009-08-01 07:01129.044178011±1
2009-08-02 00:17129.732198612±1
2009-08-02 21:13130.567348012±1
2009-08-03 12:32131.177178311±1
2009-08-04 18:58132.391196615±2
2009-08-07 12:40135.012126521±3
2009-08-09 00:28136.442168321±2
2009-08-09 22:11137.309138029±3
2009-08-10 14:43137.970168121±2
2009-08-11 00:56138.378128330±3
2009-08-11 19:48139.133238018±2
2009-08-11 22:26139.2387025231±2
2009-08-12 00:16139.31110138136±2
2009-08-12 02:08139.3866123743±3
2009-08-12 05:33139.522198138±4
2009-08-12 08:06139.62454294105±6
2009-08-12 10:01139.70199454±6
2009-08-12 14:13139.8691284145±16
2009-08-12 16:14139.94919178150±11
2009-08-12 18:07140.02522257147±9
2009-08-12 20:19140.1131741495100±3
2009-08-12 22:06140.184315275489±2
2009-08-12 23:53140.255231139961±2
2009-08-13 01:54140.3365044978±4
2009-08-13 04:21140.43416150109±9
2009-08-13 06:08140.50636429173±8
2009-08-13 07:59140.5791715989±7
2009-08-13 20:05141.0645524129±2
2009-08-13 21:44141.1309347926±1
2009-08-13 23:42141.2096844726±1
2009-08-14 01:19141.2732511223±2
2009-08-14 08:00141.541118020±2
2009-08-14 21:24142.0775323714±1
2009-08-14 23:21142.1558026816±1
2009-08-15 01:05142.224229314±1
2009-08-15 17:25142.879168918±2
2009-08-15 21:30143.0425025514±1
2009-08-15 23:15143.1125123515±1
2009-08-16 03:19143.275158215±2
2009-08-16 21:23143.999258010±1
2009-08-16 23:16144.074188311±1
2009-08-17 08:15144.434178010±1
2009-08-18 03:15145.19638838±1
2009-08-18 22:25145.96422868±1
2009-08-19 08:26146.36629807±1
2009-08-19 23:35146.97420807±1
2009-08-20 17:07147.67738806±1
2009-08-21 15:22148.57039755±1
2009-08-23 17:06150.56827824±0
2009-08-24 09:32151.2297215±1

Time is the middle of the interval in Universal Time (UTC), Solarlon is the position of the earth relative to the sun (equinox J2000.0), nINT is the number of reported observing periods and nPER is the reported number of Perseids.
ZHR = (1 + sum nPER) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude, clouds and zenith correction 1/sin(hR).

12-13 August in detail

ZHR graph

Time (UTC)SolarlonnINTnPERZHR
2009-08-12 00:08139.306104036±6
2009-08-12 00:20139.314113943±7
2009-08-12 00:35139.324123935±6
2009-08-12 00:49139.333104535±5
2009-08-12 01:04139.343124141±6
2009-08-12 01:22139.355104041±6
2009-08-12 01:34139.36393743±7
2009-08-12 01:47139.372104444±7
2009-08-12 02:05139.384134551±8
2009-08-12 02:27139.398143931±5
2009-08-12 02:50139.414104162±10
2009-08-12 04:07139.46583432±5
2009-08-12 05:50139.53453657±9
2009-08-12 06:47139.572104052±8
2009-08-12 07:33139.603738117±19
2009-08-12 07:47139.612835103±17
2009-08-12 08:06139.624636149±24
2009-08-12 08:15139.630737160±26
2009-08-12 08:24139.637738114±18
2009-08-12 08:40139.64773969±11
2009-08-12 09:10139.66753844±7
2009-08-12 09:59139.69944556±8
2009-08-12 12:03139.78263587±14
2009-08-12 14:25139.877975148±17
2009-08-12 15:32139.922565161±20
2009-08-12 16:01139.941341163±25
2009-08-12 16:24139.957739134±21
2009-08-12 16:58139.979576156±18
2009-08-12 17:25139.997636166±27
2009-08-12 18:00140.020435104±17
2009-08-12 18:19140.033254197±27
2009-08-12 18:23140.036242142±22
2009-08-12 18:48140.052747143±21
2009-08-12 19:14140.07093961±10
2009-08-12 19:31140.081951107±15
2009-08-12 19:41140.08815121111±10
2009-08-12 19:52140.0951291108±11
2009-08-12 20:02140.10295487±12
2009-08-12 20:12140.10822205109±8
2009-08-12 20:22140.1151510374±7
2009-08-12 20:31140.12114172117±9
2009-08-12 20:41140.12728322118±7
2009-08-12 20:52140.1352722889±6
2009-08-12 21:02140.14120171113±9
2009-08-12 21:12140.1493540492±5
2009-08-12 21:21140.1542116983±6
2009-08-12 21:31140.1612119593±7
2009-08-12 21:41140.1682319881±6
2009-08-12 21:51140.1742118290±7
2009-08-12 22:01140.1812421687±6
2009-08-12 22:10140.1872823696±6
2009-08-12 22:22140.1952319689±6
2009-08-12 22:30140.2002621891±6
2009-08-12 22:41140.2073626279±5
2009-08-12 22:52140.2152721494±6
2009-08-12 23:00140.2202621389±6
2009-08-12 23:10140.2273819167±5
2009-08-12 23:21140.2342718770±5
2009-08-12 23:30140.2402615170±6
2009-08-12 23:40140.2472014163±5
2009-08-12 23:53140.2552016065±5
2009-08-13 00:05140.2632311051±5
2009-08-13 00:11140.26895663±8
2009-08-13 00:23140.2752314653±4
2009-08-13 00:36140.284156551±6
2009-08-13 00:46140.291118755±6
2009-08-13 00:54140.296168758±6
2009-08-13 01:08140.30563563±10
2009-08-13 01:16140.31143669±11
2009-08-13 01:24140.31665063±9
2009-08-13 01:39140.32665973±9
2009-08-13 01:51140.33464669±10
2009-08-13 02:00140.340455138±18
2009-08-13 02:10140.34766181±10
2009-08-13 02:25140.35764783±12
2009-08-13 02:41140.367437104±17
2009-08-13 03:00140.38043984±13
2009-08-13 03:50140.41454588±13
2009-08-13 04:28140.439442154±23
2009-08-13 04:48140.452436115±19
2009-08-13 05:11140.468546147±21
2009-08-13 05:25140.477541133±21
2009-08-13 05:51140.494458191±25
2009-08-13 06:10140.507357195±26
2009-08-13 06:30140.520458224±29
2009-08-13 06:40140.527549143±20
2009-08-13 06:56140.537440147±23
2009-08-13 07:17140.552437100±16
2009-08-13 07:34140.563444132±20
2009-08-13 07:59140.58044390±14
2009-08-13 08:31140.60153865±10
2009-08-13 08:53140.6151766±23

Time is the middle of the interval in Universal Time (UTC), Solarlon is the position of the earth relative to the sun (equinox J2000.0), nINT is the number of reported observing periods and nPER is the reported number of Perseids.
ZHR = (1 + sum nPER) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude, clouds and zenith correction 1/sin(hR).

Observer statistics

Data has been received from 191 observers in 34 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

ObserverCountryTeffnPER
Tomasz Adam Poland 10.83h 93
Moein Adnani Iran 3.00h 107
Salvador Aguirre Mexico 8.50h 45
Jean-marc Alcaino France 3.36h 69
Mina Alizadeh Iran 1.76h 47
Irene Bachelier France 2.84h 33
Pierre Bader Germany 28.10h 128
Ana Bankovic Serbia 5.33h 155
Geert Barentsen Belgium 0.95h 19
Rafael G. Barrios B. Venezuela 1.87h 46
Manca Behric Slovenia 13.99h 109
Zora Beljic Serbia 3.45h 50
Orlando Benitez Sanchez Spain 13.19h 120
Dinko Brautovi? Croatia 1.00h 6
Emil Brezina Czech Republic 0.72h 3
Vasko Cacanoski Macedonia 2.17h 75
Yi Cao China 1.42h 3
John Catania Malta 2.50h 21
Simiao Cheng China 5.43h 163
Sihao Cheng China 2.19h 63
Marcin Chwala Poland 35.93h 328
Matej Ciganj Croatia 2.15h 31
Filip Colakovic Serbia 3.83h 10
Tom Corstjens Belgium 2.00h 14
Tibor Csorgei Slovakia 1.99h 34
Tibor Csorgei Slovakia 0.66h 5
Lubos Danac Slovakia 0.28h 0
Nadka Dankova Bulgaria 0.45h 8
Dorosz Dariusz Poland 2.18h 29
Biljana Davidovic Serbia 4.00h 62
Arseniy Diachko Ukraine 11.05h 46
Sietse Dijkstra Netherlands 0.67h 3
Sietse Dijkstra Netherlands 16.40h 97
Todor Dimitrov Bulgaria 32.68h 201
Irena Divisova Czech Republic 1.50h 29
Bogdan Djuric Serbia 3.83h 51
Dariusz Dorosz Poland 2.83h 98
Audrius Dubietis Lithuania 15.65h 163
Jaroslaw Dygos Poland 12.00h 131
Garry Dymond Canada 1.75h 28
Claude Fournier France 3.22h 35
Christoph Gerber Germany 2.21h 33
Wei Ge China 1.00h 51
Maryam Ghased Iran 3.00h 115
William Godley United States 12.41h 133
Evgeny Gorbikov Israel 1.18h 7
Sylvie Gorkova Czech Republic 9.17h 68
Mitja Govedic Slovenia 27.93h 271
Daniel Gruen Germany 1.68h 8
Jesus Guerrero Venezuela 2.25h 3
Pavol Habuda Slovakia 2.58h 9
Cathy Hall Canada 3.24h 47
Shy Halatzi Israel 3.99h 87
Barbara Handzlik Poland 12.78h 181
Otto Hanyecz Hungary 2.04h 13
Roberto Haver Italy 3.34h 14
Roberto Haver Italy 1.32h 4
Vilem Heblik Czech Republic 31.94h 142
Robin Hegenbarth unknown 2.13h 11
Veerle Herrygers Belgium 1.17h 7
Ken Hodonsky United States 9.33h 26
Kamil Hornoch Czech Republic 2.51h 21
Lars Jacobs Belgium 2.78h 23
Goran Jakovac Croatia 1.75h 9
Michal Jakubec Czech Republic 4.70h 43
Visnja Jankov Serbia 7.17h 137
Wout Janssens Belgium 2.87h 24
Miroslav Jedlicka Czech Republic 0.94h 6
Le Ji China 1.00h 6
Carl Johannink Netherlands 28.09h 180
Javor Kac Slovenia 31.31h 279
Amirali Kandymov Ukraine 3.35h 3
Amiraly Kandymov Ukraine 4.02h 16
Gyula Kiss Hungary 3.75h 47
Zdenek Komarek Slovakia 4.97h 14
Andrija Kostic Serbia 14.21h 193
Roman Kostenko Ukraine 5.96h 42
Jakub Koukal Czech Republic 95.42h 824
Peter Kozich unknown 1.25h 38
Dovile Krauleidiene Lithuania 1.30h 27
Richard Kramer United States 1.63h 5
Maciej Kwinta Poland 16.75h 92
Delphine Lana-theatre France 2.43h 44
Katarina Lechmanova Slovakia 2.50h 2
Martin Lehotsky Slovakia 0.73h 2
Marko Leustek Croatia 3.05h 27
Peter Van Leuteren Netherlands 23.84h 176
Anna S. Levina Israel 15.37h 213
Xin Li China 1.50h 63
Tomasz Lojek Poland 20.88h 233
Jer Nan Lou Taiwan 2.88h 27
Olivier Lumia France 2.47h 34
Robert Lunsford United States 7.99h 90
Maciej Macidym Poland 1.90h 37
Jose Luis Maestre Garcia Spain 5.49h 60
Boris Majic Serbia 3.17h 64
Muriel Maksoudian France 3.19h 55
Veikko Makela Finland 2.18h 57
Milos Malat Slovakia 0.73h 1
Qiang Ma China 1.37h 51
Pierre Martin Canada 32.39h 638
Antonio Martinez Venezuela 6.28h 20
Mikhail Maslov Russia 25.97h 55
Batlomiej Matuszkiewicz Poland 10.25h 189
Bruce Mccurdy Canada 10.35h 175
Barbara Milovanovic Serbia 2.00h 24
Stasa Milojevic Croatia 2.00h 31
Marin Miocic Croatia 1.17h 14
Jakub Mirocha Poland 7.76h 83
Koen Miskotte Netherlands 42.78h 678
Sabine Wachter Germany 8.59h 33
Adam Musial United Kingdom 3.00h 28
Mohammad Nilforoushan Iran 2.00h 55
Filip Novoselnik Croatia 3.67h 4
Tereza Novotna Czech Republic 4.50h 60
Michal Palo Slovakia 2.50h 3
Anna Pavlova Ukraine 8.37h 50
Dusan Pavlovic Serbia 3.16h 65
Tamara Pavlovic Yugoslavia 4.00h 56
Antonia Penkova-jordanova Bulgaria 9.41h 27
Momchil Petrov Bulgaria 0.43h 15
Alan Pevec Croatia 3.15h 5
Krzysztof Pieszczoch Poland 2.80h 86
Ivica Pletikosa Croatia 8.00h 26
Krzysztof Polakowski Poland 9.48h 208
Robert Pomohaci Romania 0.78h 2
Djordje Rakic Serbia 1.33h 16
Ella Ratz Israel 2.50h 18
Aleksandar Reljic Serbia 2.00h 37
Jurgen Rendtel Germany 32.57h 213
Agnieszka Ruminska Poland 3.29h 94
Gilbert Sanchez Venezuela 1.38h 55
Lukasz Sanocki Poland 2.36h 72
Branislav Savic Serbia 2.90h 17
Branislav Savic Serbia 8.12h 202
Teodora Savic Popovic Serbia 3.44h 94
Alex Scholten unknown 1.75h 45
Ivan M. Sergey Belarus 0.75h 2
Guy Sheffer Israel 1.73h 24
Magdalena Sieniawska Poland 23.4h 292
Costantino Sigismondi Italy 1.66h 5
Andrzej Skoczewski Poland 9.67h 136
Vesna Slavkovic Yugoslavia 18.17h 161
Stanislav Sokol Slovakia 0.73h 0
Paulina Sowicka Poland 10.72h 194
Ulrich Sperberg Germany 1.48h 25
Luka Spiric Croatia 1.63h 28
Jiri Srba Czech Republic 0.84h 23
Michal Stefancik Slovakia 4.97h 9
Marek St?czek Poland 1.00h 33
Kristian Stojsic Croatia 4.75h 26
Milena Stojic Yugoslavia 4.85h 13
Martin Stojanovski Macedonia 2.17h 74
Nikola Stojanovic Serbia 8.86h 42
Nikola Stojanovic Croatia 3.67h 17
Olivera Stojanovic Croatia 11.86h 150
Wesley Stone United States 5.23h 203
Martina Supak Croatia 4.25h 30
Matej Sustr Slovakia 0.73h 5
Michal Sustr Slovakia 0.73h 5
Jiri Svoboda Czech Republic 1.93h 5
Pavel Svozil Czech Republic 0.73h 7
Dana Camelia Talpeanu Romania 1.63h 3
Uros Tanaskovic Serbia 1.58h 19
Michel Vandeputte Belgium 84.58h 908
Masayuki Toda Japan 11.86h 273
Marija Todorovic Serbia 1.17h 16
Simeon Todorov Bulgaria 0.57h 8
Veljko Tomic Bulgaria 2.15h 45
Jhonny Torres Venezuela 1.85h 27
Daniela Urumova Bulgaria 8.16h 38
Hendrik Vandenbruaene Belgium 1.17h 17
Valentin Velkov Bulgaria 2.00h 53
Vilena Velikic Serbia 4.25h 88
Jan Verfl Czech Republic 2.06h 6
Miroslav Vetrik Slovakia 0.80h 1
Denis Vida Croatia 8.90h 30
Myriam Vingerhoets Belgium 15.79h 91
Frank Wachter Germany 2.05h 6
Andreas Waets Belgium 1.47h 27
Ewa Wala Poland 16.12h 163
Krzysztof Walczak Poland 5.63h 89
William Watson United States 17.40h 244
Thomas Weiland Austria 35.93h 105
Xiaofan Wei China 2.00h 53
Mariusz Wisniewski Poland 20.34h 338
Lukasz Wozniak Poland 4.33h 213
Xijun Wu Wu China 1.00h 31
Yingkai Xia China 1.00h 43
Li Xue China 5.90h 225
Quanzhi Ye China 0.49h 3
Ilkka Yrjola Finland 1.00h 5
Weizhou Zeng China 5.71h 138
Xiang Zhan China 1.00h 17
Yu Zhang China 2.00h 48
Jurga Zieniute Lithuania 2.50h 25
Przemyslaw Zoladek Poland 4.00h 31
Dario Zubovic Croatia 2.00h 9

Data access

Create your own analysis!
Rate intervals:
per2009_rate.csv (CSV-format).
Magnitude distributions: per2009_magn.csv (CSV-format).

Credits

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 the Urania Public Observatory in Belgium.