# Quadrantids 2008: visual data quicklook

## Introduction

This page shows automated results of the Quadrantids 2008, based on visual data entered through the IMO electronic report form. Send your feedback regarding this page to Geert Barentsen or visit the project pages. Note that these automated results may not be suitable for scientific use!

Page generated: 2008 March 29 at 15:03 UT.

## Activity profile

ZHRmax = 82 based on 2588 Quadrantids in 505 data intervals, assuming fixed population index r = 2.0 and zenith correction 1/sin(hR).

Time (UT)SolarlonnINTnQUAZHR
2007-12-31 03:52278.964712+-1
2008-01-02 01:23280.89740215+-1
2008-01-03 01:19281.913111911+-2
2008-01-03 09:53282.27723248+-2
2008-01-03 18:08282.628122411+-2
2008-01-03 19:35282.68963229+-5
2008-01-03 20:45282.73953436+-6
2008-01-03 22:01282.79352829+-5
2008-01-03 23:11282.84285939+-5
2008-01-04 00:22282.8921510746+-4
2008-01-04 01:15282.9303518042+-3
2008-01-04 02:21282.9775231656+-3
2008-01-04 03:19283.0185540554+-3
2008-01-04 04:18283.0605945257+-3
2008-01-04 05:14283.0993930858+-3
2008-01-04 06:29283.152156744+-5
2008-01-04 07:35283.19993765+-11
2008-01-04 08:38283.2443010977+-7
2008-01-04 09:36283.2852810282+-8
2008-01-04 10:39283.3291410475+-7
2008-01-04 11:48283.37855752+-7
2008-01-04 12:49283.42152518+-4
2008-01-04 14:36283.49752226+-5
2008-01-04 17:18283.61282124+-5
2008-01-04 23:27283.873112412+-2
2008-01-05 09:55284.31731014+-4

For each estimation interval: time is the middle of the interval, nINT is the number of observing periods and nQUA is the number of Quadrantids involved. ZHR = (1 + sum nQUA) / 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 65 observers in 19 countries. Thank you for your efforts!

### Table of observers

ObserverCountryTeffnQUA
Rainer Arlt Germany 1.65h 74
Felix Bettonvil Netherlands 2.64h 52
Simiao Cheng China 1.55h 8
Marcin Chwala Poland 4.17h 73
Mark Davis United States 3.15h 71
Peter Detterline United States 1.85h 13
Sietse Dijkstra Netherlands 6.75h 12
Irena Divisova Czech Republic 6.00h 7
Sergey Dobrowsky Belarus 3.67h 17
Jaroslaw Dygos Poland 2.00h 2
Shlomi Eini Israel 0.25h 7
Frank Enzlein Germany 1.75h 58
Ling Feng China 2.50h 4
Stela Frencheva Bulgaria 1.25h 63
Arnold Gentz Romania 2.16h 53
William Godley United States 2.49h 39
Wayne T. Hally United States 4.83h 47
Vilem Heblik Czech Republic 8.41h 63
Petr Horalek Czech Republic 1.31h 32
Sorin Hotea Romania 2.85h 96
Antal Igaz Hungary 2.36h 45
Andrey Igoshev Russia 1.00h 17
Andre Knofel Germany 2.51h 74
Aleksey Kobets Israel 0.41h 13
Katsuyuki Kobayashi Japan 1.00h 4
Jakub Koukal Czech Republic 24.42h 77
Richard Kramer United States 0.68h 3
Richard Kramer United States 0.72h 1
Peter Van Leuteren Netherlands 3.18h 10
Anna S. Levina Israel 0.50h 19
Xin Li China 1.08h 7
Sven Nather Germany 2.00h 83
Duc Thien Ngo Vietnam 3.50h 55
Tereza Novotna Czech Republic 2.00h 27
Aleksandr Pobiakha Belarus 1.09h 8
Krzysztof Polakowski Poland 11.00h 167
Jurgen Rendtel Germany 4.53h 142
Maciej Reszelski Poland 1.50h 72
Krisztian Sarneczky Hungary 2.36h 65
Mikiya Sato Japan 0.50h 0
Hideki Seo Japan 0.50h 1
Ulrich Sperberg Germany 2.83h 68
Martin Stojanovski Macedonia 0.82h 8
Richard Taibi United States 3.17h 37
Istvan Tepliczky Hungary 0.50h 8
Kazumi Terakubo Japan 1.00h 8
Josep Trigo Rodriguez Spain 2.86h 40
Maria Turda Romania 1.08h 34
Shigeo Uchiyama Japan 4.00h 39
Andras Uhrin Hungary 2.36h 71
Michel Vandeputte Belgium 3.84h 50
Robert Wagner Spain 0.29h 7
Roland Winkler Germany 2.42h 53
Lukasz Wozniak Poland 0.55h 9
Kim S. Youmans United States 2.00h 78
Xiang Zhan China 1.25h 3