[meteorite-list] Fire ball spotted!

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Hello list,   This evening driving home from work I spotted a meteor that appeared to fall vertically a bit east of Plainfield Illinois.   It wasnt a big fireball ..... more of a thin line, but died out approx 20 Degrees from the surface of the earth.   I wondered if there was any way to determine the mass of such a fireball.   Would appreciate your opinions   Bob Evans