Impacts of Large Meteoroids into the Earth's Atmosphere

Details Impacts of Large Meteoroids into the Earth's Atmosphere Impacts of Large Meteoroids into the Earth's Atmosphere

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..951n&link_type=abstract

Lunar and Planetary Science, volume 27, page 951

Physics

Atmospheres: Earth, Light Curves, Luminosity, Meteoroids: Large, Radiation: Hydrodynamic Simulations

Scientific paper

A large number of bright light flashes with energies in light impulse of about 0.1-2 kt TNT at altitudes of about 30-40 km have been registered by USA DoD satellites equipped with photoelectric detectors of Sandia National Laboratories. Analysis of the light curves may give valuable information on a frequency of impacts and characteristics of impacting bodies. Satellite-based observations substantially supplement the data obtained by the ground-based photographic systems--Prairie Network (PN) and still operating European Network (EN). To denote meteoroids that cause flashes registered by Sandia, we have coined a special term--Sandia Network bolides, or SN meteoroids. SN system in 20 years of operation has registered much larger meteoroids than ground-based systems due to a large area of observation and independence on weather conditions

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