The peak of our observations was 18h-19h(UT) on Nov.17. But the peak was not sharp.
Nov./1998
DayUT min Ls h Lm Cl All Leo HR CHR ZHR Observer
------+--+-------+-----+----+--+---+---+----+----+-----+--------------------
17.59 30 235.05 3.0 6.3 0 10 2 4 4 363 Mikiya Sato
17.61 30 235.07 8.7 6.1 1 6 2 4 5 92 Hideki Seo
17.64 30 235.09 14.5 6.1 2 19 11 22 33 266 Kazumi Terakubo
17.66 30 235.11 20.4 5.4 2 9 8 16 34 163 Katsuyuki Kobayashi
17.68 30 235.13 26.4 5.2 2 18 10 20 46 155 Shizuka Tanaka
17.70 30 235.15 32.5 5.3 0 18 12 24 42 107 Nobuya Kikuchi
17.72 30 235.18 38.6 5.6 0 35 20 40 61 124 Toru Nishino
17.74 30 235.20 44.7 5.1 3 *1 18 36 99 168 Hiroki Izumoto
17.76 30 235.22 50.8 5.3 2 *1 32 64 141 206 Noriko Yoshimura
17.78 30 235.24 56.8 5.6 5 *1 31 62 189 247 Kiyohide Nakamura
17.80 30 235.26 62.6 5.7 5 *1 32 64 186 223 Mikiya Sato
17.82 30 235.28 68.1 5.3 5 *1 27 54 190 212 Kazumi Terakubo
17.84 10 235.29 71.3 *2 9 *1 7 42 Satoru Iki
*1:Count only Leonids.
*2:Not look by cloud.
Place:Narusawa village (Yamanashi pref. Japan)
138d 44.7'E, 35d 26.4'N
CHR = HR*Fa*Fb, Fa = 1.6^(6.5-Lm), Fb = 10/(10-Cl)
ZHR = CHR/(sin h)^1.5
1.Continuous pictures.
An interval of 5-15 seconds from one minute after the fire ball appearance.
No.1
,No.2
,No.3
,No.4
,No.5
,No.6
,No.7
,No.8
,
We recorded with I.I. and DVCAM video system.
This picture is from 4 minutes after the fire ball appearance to 5 minutes after that time.
Fire ball and Train of Leonids
We watched a long existent train of one fire ball which was appearant at 19h13m53s(UT).
Following images were pictures of that train.
2.Video.
No.9
,No.10
,No.11
,No.12
,No.13
,No.14
,No.15
Copyright: Kazumi Terakubo (FAS)
Date:1998/11/17 about 19h15m-(UT) Exposure:5sec.(beginning)-15sec.(ending)
Film:Fuji Super G Ace800 (ISO 800)
Place:Narusawa village (Yamanashi pref. Japan)
138d 44.7'E, 35d 26.4'N
3. A picture from 4 minutes after the fire ball appearance.
Fire ball at 19h13m53s.
From 19h13m51s to 59s (7.3 sec.).
From 19h13m48s to 15m18s (90 sec.). RealVideo ver. 5.0.
Copyright: Souichirou Takemoto (ZERO,FAS)
Date:1998/11/17 19h13m(UT)
Recording system:28mm camera lends + I.I. + DVCAM
Place:Narusawa village (Yamanashi pref. Japan)
138d 44.7'E, 35d 26.4'N
Copyright: Masaaki Yoshimura (FAS)
Date:1998/11/17 19h17m55s-18m55s(UT)
Camera:35mm f2.8(->f4) Nikon
Film:Fuji Super G Ace800 (ISO 800)
Place:Narusawa village (Yamanashi pref. Japan)
138d 44.7'E, 35d 26.4'N
Link
The page of results of the 1998 Leonids by IMO(International Meteor Organization).
Many results and images around the world.
FAS HOME PAGE
