Return buck to Meteorite List
21, Jul. 2004, 16h06m05s UT (=Jul. 22, 01h06m05s LT), a bright fireball appeared over Aki city, Kochi prefecture, Japan.
This fireball flight with explosion to west-north-west direction. The fireball duration was 6 seconds.
Witnesses were few because not so clear sky at midnight.
However, the intense sonic boom reached 1-3 minutes after the fireball appeared in the east and center of Kochi prefecture.
Sonicboom signal was recorded by seismographs set on Tokushima prefecture and east-central Kochi prefecture.
Two sites of automatic TV cameras by Mr. N.Hashimoto who belong to LAT
and Bisei Spaceguard Center caught this fireball's trail between clouds.
The orbit was calculated from his TV images, the results were published on
Yamamoto circular No.2435(in Japanese).
This fireball's orbit belongs to Athen type.
Predicted Fell Area
Red ellipse is predicted impact area.
(Corrected on Zenrin map)
Link
Tokushima Kainann Observatory : One of TV camera site of Mr.N. Hashimoto.
Data Supply
This results carryed out by accepted data from bellow organizations.
National Research Institute for Earth Science and Disaster Prevention
Kochi University
Japan Meteorological Agency
Disaster Prevention Research Institute Kyoto University
Earthquake Research Institute, University of Tokyo
Shionomisaki Weather Station(in Japanese) Sounding's Section
Kochi Newspaper(in Japanese)
Cooperaters
Nariyasu Hashimoto (LAT, Bisei Space Guard Center)
Yoshiaki Ishihara (Research Center for Prediction for Earthquakes and Volcanic Eruptions)
Yasuo Shiba (Nippon Meteor Sciety)
Masayuki Yamamoto(Electronic and Photonic Systems Engineering, Kochi Univercity of Technorogy)