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(meteorobs) 2004 Quadrantids in JAPAN (Visual) Vol 1
Hello all,
Mr.Shigeo UCHIYAMA updated Japanese visual flash annoucement.
Although the peak time was predicted at daytime in Japan,
the high activity was observed.
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2004 Quadrantid FLASH in JAPAN (Visual Observation) (1)
(The Nippon Meteor Society)
- calculated by Shigeo UCHIYAMA(NMS) -
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* excluding:observations under unfavorable condition
(Lm<4.1mag, Cl>=0.3, RP-h<15deg)
Nind.: the number of observers during night
Nobs : the number of observers
Teff : observed period (hr)
QUA : the number of Quadrantid meteors
HRave: average HR
ZHRave:average ZHR with population index = 2.0
Err. : ZHRave/sqrt(LEO)
<Daily Analysis> http://www.nms.gr.jp/qua04daily.gif
Time(UT) Nind. Teff QUA HRave ZHRave Err.
-----------------------------------------------
Dec 27d 2 2.0 5 2.5 5.5 2.5
Dec 28d 1 1.0 2 2.0 6.7 4.7
Dec 29d 2 2.0 6 3.0 6.8 2.8
Dec 30d 0 0.0 - - - -
Jan 31d 2 2.3 8 3.5 8.7 3.1
Jan 1d 2 4.5 17 3.8 15.6 3.8
Jan 2d 4 5.2 58 11.2 27.8 3.7
Jan 3d 10 20.9 700 33.5 105.5 4.0
<Hourly Analysis>
Time(UT) Nind. Teff QUA HRave ZHRave Err.
---------------------------------------------------
Jan 3d 17:00 4 4.0 67 16.8 110.3 13.5
Jan 3d 18:00 4 4.3 142 33.0 123.5 10.4
Jan 3d 19:00 4 3.5 65 18.6 62.2 7.7
Jan 3d 20:00 11 8.8 399 45.3 108.1 5.4
Total Quadrantid meteors : 796
Total Observed Time : 37.9 hr
Observers(Teff:hours): ---- 9 observers
Takema HASHIMOTO, Kazuhiro OSADA, Kazuhiro SUMIE, Minoru MURAKI,
Hiroyuki KATOH, Shigeo UCHIYAMA, Yoshihiro HIGA, Shin-ichiro YANAGI,
Atsushi KISANUKI,
And we received reports from following members.
Koetsu SATO, S. HAYAMIZU, Kumiko KAI
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Hiroshi Ogawa (University of Tsukuba, JAPAN)
mailto: HZH02257@nifty.ne.jp
homepage: http://homepage2.nifty.com/~baron/
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