"Essex Army Airfield doco"
Operation ARGUS was a fairly insane, dangerous and messy series of high-altitude nuclear experiments with the intent of testing theories of communication disruption caused by ... high altitude nuclear explosions. Classic Cold War insanity. The cavalier, cowboy nature of the shaky technology is evident if you watch the film carefully; with live nuclear devices attached, engineers were fiddling around on the deck of a ship trying to stabilize the missiles! Unbelievable.
My father saw what were apparently ARGUS aurora very early in the morning commuting to work, Franklin to Boston, Massachusetts.