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(meteorobs) 2003 Leonids in JAPAN -Visual Observation- (Final FLASH)

Hello all,

 ---------------------------------------------------------
     2003 Leonids FLASH in JAPAN (Visual Observation)
              (The Nippon Meteor Society)
         - calculated by Shigeo UCHIYAMA(NMS) -
             ==== FINAL ANNOUNCEMENT ====
 ---------------------------------------------------------

(1) Daily Report

 DATE(UT)  Nind.  Teff  LEO  HRave  ZHRave  Err.
 -------------------------------------------------
  Nov 13d   22   50    475    9.5    47.6   2.2
  Nov 14d    0    0      -     -       -     -
  Nov 15d    0    0      -     -       -     -
  Nov 16d   12   15.1  105    7.0    42.8   4.2
  Nov 17d   14   23.7  403   17.0    70.6   3.5
  Nov 18d    2    1.3   19   14.6    98.3  22.6 **
  Nov 19d    7   15.6  338   21.7   119.0   6.5
  Nov 20d    0    0      0    -       -     -
  Nov 21d    5    9.0   90   10.0    24.0   2.5
  Nov 22d    2    6.0  152   25.3    24.3   2.0
  Nov 23d    1    4.5  121   26.9    22.9   2.1

 * excluding:observations under unfavorable condition
    (Lm<4.0mag, Cl>=0.3, RP-h<15deg)
 ** On 18th, two data were not observed under good condition.
    It however was bad weather night in Japan. So, these data
    added.

Total Leonid meteors : 1,684
Total Observed Time  :   123.9 hr

 Nind.: the number of observers during night
 Nobs : the number of observers
 Teff : observed period (hr)
 LEO  : the number of Leonid meteors
 HRave: average HR
 ZHRave:average ZHR population index = 2.2
 Err. : ZHRave/sqrt(LEO)

Observer name(nights) :
Kazuhiro SUMIE(6), Kazuhiro OSADA(6), Minoru MURAKI(4),
Takema HASHIMOTO(4), Shigeo UCHIYAMA(3), Koetsu SATO(3),
Fumihiko KANNO(3), Kayo MIYAO(2), Erina YANAGIDA(2),
Yoshihiro HIGA(2), Hironobu SAKAKIBARA(2), Kumiko TAKEDA(2),
Hiroyuki SOMEYA(2), Nozomi SOUMA(2), Hideo AMI(2),
Yoshihito TANAKA(2), Hiroshi OGAWA(2), Mio TSUKAKOSHI(2),
Masayuki TODA(1), Seiji AKAGI(1), Masayuki YAMAMOTO(1),
Yasuo YABU(1), Yuuki KATO(1), Satoshi KARIYA(1),
Hitoshi ICHIKAWA(1), Mikiya SATO(1), Erika MATSUMOTO(1),
Kazumi TERAKUBO(1), Ken-ichi FUSHIMI(1), Yusuke KAMEOKA(1),
Yasuhiro TAKEDA(1), Mayumi SAITO(1), Takashi SEKIGUCHI(1),
Tomoko SAITO(1), Hiromichi HORIGANE(1) ; 35observers

and we received reports from following observers.
Takehiko ADACHI, Minako OTA, Mariko SEKINE, Makiko NAGASAWA,
Yasuro, OIKAWA

------------------------------------
From 21st to 23rd night(UT), ZHR was same level and it did
not decrease. On 21st night, however, although there were five
observers, there were less members on 22nd and 23rd nights.

Then Mr.Uchiyama calculated the magnitude distribution.
He says that there were many bright meteors on 19th night(UT).
On other nights, meteor average magnitude was darker (not only
13th night but also other nights).


with best wishes
Hiroshi Ogawa

----------------------------------
Hiroshi Ogawa (University of Tsukuba, JAPAN)
mailto: HZH02257@nifty.ne.jp
homepage: http://homepage2.nifty.com/~baron/
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