Subject: [IMO-News] 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 |