A few seconds of 8-mm film show a meteor about 58 kilometers (36 miles) up, headed north. Happily, it kept going and headed back into space.
There's another copy of the video at "The Tetons Meteor, A Near Miss - Video" - with somewhat less informed text
Background
- "PLANETARY DEFENSE Department of Defense Cost for the Detection, Exploration, and Rendezvous Mission of Near-Earth Objects"
Airpower Journal (Summer 1997) - "1908 Siberia Explosion" Reconstructing an Asteroid Impact from Eyewitness Accounts"
Planetary Science Institute (undated) - "Tunguska Event"
earth science australia (undated)
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