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(meteorobs) 2003 Geminid in JAPAN (Visual) Vol 2
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2003 Geminids FLASH in JAPAN (Visual Observation) (2)
(The Nippon Meteor Society)
- calculated by Shigeo UCHIYAMA(NMS) -
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* excluding:observations under unfavorable condition
(Lm<4.0mag, Cl>=0.3, RP-h<15deg)
Nind.: the number of observers during night
Nobs : the number of observers
Teff : observed period (hr)
GEM : the number of Geminid meteors
HRave: average HR
ZHRave:average ZHR with population index = 2.0
Err. : ZHRave/sqrt(LEO)
<Daily Analysis> http://www.nms.gr.jp/gem2003day.gif
Time(UT) Nind. Teff GEM HRave ZHRave Err.
-----------------------------------------------
Dec 6d 3 8.3 44 5.3 12.2 1.8
Dec 7d 1 4.0 25 6.3 12.5 2.5
Dec 8d 3 6.3 48 7.6 19.6 2.8
Dec 9d 0 0.0 - - - -
Dec 10d 0 0.0 - - - -
Dec 11d 0 0.0 - - - -
Dec 12d 7 15.9 301 18.9 63.8 3.7
Dec 13d 34 65.4 1470 22.5 84.7 2.2
Dec 14d 28 70.3 3862 54.9 174.3 2.8
Dec 15d 14 19.9 354 17.8 53.2 2.8
Dec 16d 1 1.0 4 4.0 15.5 7.8
<Hourly Analysis> http://www.nms.gr.jp/gem2003hour.gif
ZHR on 14th(UT) was constant. Although ZHR at 11h(UT) and 20h(UT)
was large value, this was because ther were few observers.
Besides, around these time, almost of observers are great
meteor observers who can see faint meteors. Therefore, ZHR
was large value when there were a few observers and almost
observers were great observers. This is also seen 13th
11h-13h(UT).
Time(UT) Nind. Teff GEM HRave ZHRave Err.
---------------------------------------------------
Dec 13d 11:30 1 1.0 28 28.0 100.4 19.0
Dec 13d 12:30 1 1.0 45 45.0 114.0 17.0
Dec 13d 13:30 2 2.0 102 51.0 154.1 15.3
Dec 13d 14:30 9 9.0 163 18.1 73.3 5.7
Dec 13d 15:30 12 11.2 240 21.4 90.6 5.8
Dec 13d 16:30 12 10.3 233 22.6 76.6 5.0
Dec 13d 17:30 13 10.5 152 14.5 52.4 4.3
Dec 13d 18:30 13 10.3 242 23.5 86.6 5.6
Dec 13d 19:30 2 1.0 17 17.0 47.8 11.6
Dec 13d 20:30 9 7.1 170 23.9 113.8 8.7
Dec 14d 11:30 3 2.7 165 61.1 232.5 18.1
Dec 14d 12:30 4 2.8 142 50.7 166.6 14.0
Dec 14d 13:30 11 8.1 446 55.1 191.6 9.1
Dec 14d 14:30 14 11.1 611 55.0 176.6 7.1
Dec 14d 15:30 16 13.2 581 44.0 140.3 5.8
Dec 14d 16:30 12 10.8 626 58.0 172.2 6.9
Dec 14d 17:30 12 10.2 570 55.9 171.3 7.2
Dec 14d 18:30 7 5.5 348 63.3 179.3 9.6
Dec 14d 19:30 4 3.0 185 61.7 192.9 14.2
Dec 14d 20:30 3 3.0 188 62.7 234.8 17.1
Dec 15d 12:30 2 2.0 49 24.5 73.1 10.4
Dec 15d 13:30 1 1.0 24 24.0 44.6 9.1
Dec 15d 14:30 5 4.8 89 18.5 59.7 6.3
Dec 15d 15:30 3 2.7 50 18.5 48.6 6.9
Dec 15d 16:30 4 3.5 58 16.6 47.3 6.2
Dec 15d 17:30 4 3.5 70 20.0 53.9 6.4
Dec 15d 18:30 3 2.5 14 5.6 35.2 9.4
Total Geminid meteors : 6,108
Total Observed Time : 191.1 hr
Observers(Teff:hours): ---- 51 observers
Kazuhiro SUMIE (43.2), Hiroshi OGAWA (13.6), Kazuhiro OSADA (12.3),
Minoru MURAKI (11.5),Takema HASHIMOTO (10.3), Kazumi TERAKUBO (5.5),
Shigeo UCHIYAMA (5.4), Kumiko TAKEDA (4.2), Hiroyuki KATOH (4),
Kayo MIYAO (4), Tomoko CHIBA (4), Erina YANAGIDA (4),
Yoshito TANAKA (3.7), Koetsu SATO (3.6), Yasuhiro TAKEDA (3.5),
Nozomi SOUMA (3.3), Misaki KANETAKA (3), Kaoru MATSUSHITA (2.8),
Daisuke NOHARA (2.8), Hideo AMI (2.5), Masa-yuki YAMAMOTO (2.5),
Hirotaka HORIUCHI (2), Yasuo YABU (1.9), Tomohiko ARAKI (1.8),
Syouta KIKUKAWA (1.8), Yuki KATOH (1.7), Shinya TACHIZAWA (1.7),
Toru TAKAHASHI (1.7), Kouichi YAMADA (1.7), Masato SUZUKI (1.7),
Yuya WATANABE (1.7), Tomoko SATO (1.5), Mikiya SATO (1.5),
Eisuke TSUGE (1.1), Masataka NOMURA (1), Masaki NABESHIMA (1),
Keita MORINO (1), Yuji NONAKA (1), Mitsuhiko HASEBE (0.8),
Michie NAKAYAMA (0.8), Ayako TAMURA (0.8), Shingo FUJISAWA (0.8),
Kaori URABE (0.8), Yu AZAMA (0.8), Yoko FUKUKITA (0.8),
Ken-ichi FUSHIMI (0.8), Kaori HAGA (0.8), Satoshi IBARAKI (0.5),
Kazuhiro YONEGUCHI (0.5), Takashi SEKIGUCHI (0.5),
Ryouichi IBARAKI (0.5)
And we received reports from following members.
Mio TSUKAKOSHI, Mayumi SAITO, Mano SUZUKI
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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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