On November 3, 1962, a Nike Hercules anti-aircraft missile with a W-31 nuclear warhead, with a yield of about 10 kt, was launched from Johnston Atoll and exploded at 21:30 at an altitude of 21 km.

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7 missiles with measuring instruments were also launched. This was the last atmospheric nuclear test by the United States.
High Altitude Nuclear Explosion (1962)
Challenge: Tightrope
Time: 00:00, November 4, 1962
Location: 2 km southwest of at. Johnston
Type of explosion: high altitude, 21 km
Power: <40 kt

The last atmospheric nuclear test of the United States.

Video from the group: https://vk.com/nuclearweapon

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