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Infrasonic detection of a large bolide over south sulawesi, indonesia on october 8, 2009: preliminary results
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Silber, E. A. Le Pinchon, A. Brown, P. G. |
| Copyright Year | 2011 |
| Description | In the morning hours of October 8, 2009, a bright object entered Earth's atmosphere over South Sulawesi, Indonesia. This bolide disintegrated above the ground, generating stratospheric infrasound returns that were detected by infrasonic stations of the global International Monitoring System (IMS) Network of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) at distances up to 17 500 km. Here we present instrumental recordings and preliminary results of this extraordinary event. Using the infrasonic period-yield relations, originally derived for atmospheric nuclear detonations, we find the most probable source energy for this bolide to be 70+/-20 kt TNT equivalent explosive yield. A unique aspect of this event is the fact that it was apparently detected by infrasound only. Global events of such magnitude are expected only once per decade and can be utilized to calibrate infrasonic location and propagation tools on a global scale, and to evaluate energy yield formula, and event timing. |
| File Size | 558858 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110016611 |
| Archival Resource Key | ark:/13960/t3wt3p10t |
| Language | English |
| Publisher Date | 2011-07-01 |
| Access Restriction | Open |
| Subject Keyword | Bolides Earth Atmosphere Aerial Explosions Position Location Detonation Infrasonic Frequencies Oceans Near Earth Objects Impactors Stratosphere Indonesia Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
