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meteor event comparison table

Subject	occur for	has start time	has altitude	has composition	has definition	produce	has time of occurence	shatter	is a kind of	produce produce light	has destination	has duration	is an instance of
dark flight		the point of intial contact with the atmosphere			phase in the flight of a meteor after the ratardation point when the meteoroid is no longer incandescent	a crater			meteor event			from the point of intial contact with atmosphere until the retardation point
fireball						a crater			meteor event
incandescent flight		the point of intial contact with the atmosphere			phase in the flight of a meteor before the ratardation point when the meteoroid is producing its own incandescent light	a crater						from the point of intial contact with atmosphere until the retardation point	meteor event
meteorite impact						crater blinding white light like a nuclear detonation ejecta blanket tektites and impact melt glass seismic disturbances like Earthquakes		meteoroid	meteor event
meteoroid break up						a crater			meteor event
retardation point	meteoroids heavier than 10 tons they impact with a significant fraction of their cosmic velocity	shortly after the time of initial contact with atmosphere but before impact	inversely proportional to the mass of the meteoroid		the point in the flight of a meteoroid through the atmosphere where it loses its cosmic velocity and falls freely due to gravity	a crater			meteor event			zero (it is a point in time)
smoke trail				tiny roughly spherical micrometeorites	condensation of vaporized rock removed from the surface of a meteoroid by ablation	a crater	when meteoroid collides with atmosphere		meteor event	visible only at night	surface of celestial body	hours

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