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The 2003 Kanto large bolide's trajectory determined from shockwaves recorded by a seismic network and images taken by a video camera
Author(s) -
Ishihara Yoshiaki,
Furumoto Muneyoshi,
Sakai Shin'ichi,
Tsukada Shin'ya
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl020287
Subject(s) - meteoroid , trajectory , atmosphere (unit) , geology , sky , boom , seismology , seismometer , remote sensing , meteorology , astrobiology , astronomy , physics , oceanography
Anomalous loud sounds like booms were heard in a wide area in the Kanto region, Japan on June 16, 2003. Since the sky was thickly clouded, the source of the sounds, which was supposed to be a meteoroid penetrating the atmosphere, was hardly witnessed and photographed. It was recorded by only one video camera. We searched the shockwaves from the meteoroid recorded by a dense seismographic network. Shockwave signals were identified at 40 stations of the network deployed in the region. We report here the trajectory of the meteoroid determined by an analysis of seismic data. Combining the trajectory with the video camera data, we determined the precise velocity of the bolide in the atmosphere.