Lyrids 2009: visual data quicklook

Introduction

This page shows automated results of the Lyrids 2009, based on visual data entered through the IMO electronic report form. Note that these automated results may not be suitable for scientific use; please refer to manual analysis results published in journal papers (e.g., WGN) when available. Send your feedback regarding this page to Geert Barentsen.

Page generated: 2009 July 15 at 22:15 UT.

Activity profile

ZHRmax = 15 based on 1285 Lyrids in 380 data intervals, assuming fixed population index r = 2.1 and zenith correction 1/sin(hR).

Time (UT)SolarlonnINTnLYRZHR
2009-04-16 00:3626.037662±1
2009-04-18 04:3828.157423±2
2009-04-19 02:0429.03123363±0
2009-04-20 01:5530.00126564±1
2009-04-20 22:1330.82715566±1
2009-04-21 00:2230.91417566±1
2009-04-21 01:2330.95614556±1
2009-04-21 17:4131.61918558±1
2009-04-21 21:5431.790185810±1
2009-04-21 22:3631.81817569±1
2009-04-21 23:1831.84613599±1
2009-04-21 23:4831.86711627±1
2009-04-22 00:2231.890158910±1
2009-04-22 00:5331.911156710±1
2009-04-22 01:2231.931158712±1
2009-04-22 01:5231.951106814±2
2009-04-22 04:3432.061156313±2
2009-04-22 09:0532.245105915±2
2009-04-22 15:5232.520136011±1
2009-04-22 21:2432.745185912±2
2009-04-22 23:1132.818175610±1
2009-04-23 20:1833.67523384±1
2009-04-24 10:4734.26429534±1
2009-04-25 20:2635.62916232±0
2009-04-26 10:4036.207264±2

For each estimation interval: time is the middle of the interval, nINT is the number of observing periods and nLYR is the number of Lyrids involved. ZHR = (1 + sum nLYR) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude, clouds and zenith correction. The solar longitudes refer to equinox J2000.0.

Observer statistics

Data has been received from 78 observers in 21 countries. Thank you for your efforts!

Table of observers

ObserverCountryTeffnLYR
Joanna Antosik Poland 5.30h 19
Peter Bakalik Slovakia 1.05h 2
Ricardas Balciunas Lithuania 6.00h 19
Emil Brezina Czech Republic 3.36h 18
Magdalena Buczkowska Poland 2.95h 12
Jakub Cerny Czech Republic 3.20h 23
Igor Chalenko Ukraine 3.00h 16
Marcin Chwa?a Poland 3.00h 3
Tibor Csorgei Slovakia 2.33h 19
Tibor Csorgei Slovakia 1.33h 17
Mark Davis United States 1.45h 11
Ameya Deshpande India 1.50h 4
Mayuresh Desai India 3.50h 15
Sietse Dijkstra Netherlands 4.46h 15
Dariusz Dorosz Poland 4.00h 32
Sergey Dobrowsky Belarus 1.71h 6
Urszula Dzikowicz Poland 2.95h 11
Frank Enzlein Germany 10.68h 45
Christoph Gerber Germany 6.45h 7
Sylvie Gorkova Czech Republic 6.00h 6
Mitja Govedic Slovenia 2.61h 23
Pavol Habuda Slovakia 2.70h 9
Vilem Heblik Czech Republic 14.25h 44
Carl Hergenrother United States 1.04h 7
Ken Hodonsky United States 1.80h 14
Petr Horalek Czech Republic 3.70h 34
Carl Johannink Netherlands 7.36h 12
Lidija Jovanovic Serbia 1.42h 2
Angelika Ju?kiewicz Poland 2.95h 13
Javor Kac Slovenia 3.08h 27
Paulina Kedzierska Poland 2.95h 9
Roman Kostenko Ukraine 2.09h 6
Jakub Koukal Czech Republic 34.47h 162
Peter Van Leuteren Netherlands 10.72h 14
Anna S. Levina Israel 2.92h 14
Tomasz Lojek Poland 4.00h 29
Jer Nan Lou Taiwan 1.12h 2
Robert Lunsford United States 1.75h 13
Marian Majerik Slovakia 2.95h 14
Justyna Mamzer Poland 2.95h 19
Ivana Marjanovic Serbia 1.77h 4
Antonio Martinez Venezuela 0.92h 1
Katarzyna Mielczarek Poland 2.95h 19
Koen Miskotte Netherlands 12.41h 25
Sirko Molau Germany 2.25h 16
Martin Nedved Czech Republic 1.07h 2
Tereza Novotna Czech Republic 4.08h 11
Filip ?olakovi? Serbia 4.64h 13
Karolina Paprocka Poland 2.95h 13
Dominika P?czek Poland 2.95h 15
Nilesh Puntambekar India 1.00h 4
Ella Ratz Israel 3.08h 5
Jurgen Rendtel Germany 20.19h 64
Branislav Savic Serbia 2.42h 9
Branislav Savic Serbia 5.07h 12
Magdalena Sendak Poland 2.95h 15
Ivan Sergey Belarus 1.63h 17
Ivan M. Sergey Belarus 0.88h 5
Rohan Shewale India 1.50h 7
Klaudia Sicinska Poland 2.95h 14
Magdalena Sieniawska Poland 3h 5
Natalia Smus Poland 2.95h 9
Ulrich Sperberg Germany 4.05h 17
Wesley Stone United States 2.63h 37
Matej Sustr Slovakia 1.05h 8
Pavel Svozil Czech Republic 2.00h 11
Raul Truta Romania 3.4h 9
Michel Vandeputte Belgium 14.50h 74
Vilena Velikic Serbia 1.42h 2
Jan Verfl Czech Republic 2.52h 9
Ivo Vespalec Czech Republic 11.71h 71
Amogh Waghmare India 2.50h 12
Thomas Weiland Austria 4.39h 33
Ilkka Yrjola Finland 1.05h 6
Weihou Zeng China 2.08h 6