Monday, 23 March 2026

Airburst above Gulf of Alaska, NE Pacific

2026, March 23. Gulf of Alaska, NE Pacific, Airburst. Coordinates: (54.6N, 144.1W). Time: 19:23UT. Altitude: 35 km. Velocity: 11.48 km/s. Entry angle of approximately 54.1°. Energy: e = 5.1e10. -e = 0.17 or 170,000 kg/TNT. This is the sixth airburst of the year calculated by NASA. Note: A velocity of 11.48 km/s is particularly interesting because it is very close to the Earth's escape velocity (~11.19 km/s). This indicates a "slow" entry, which is characteristic of: Asteroidal origin: Objects coming from the inner solar system often have lower entry speeds. Meteorite potential: Because the velocity is low, the object experiences less intense heating and atmospheric pressure, making it much more likely that fragments survived to reach the ground or ocean as meteorites. A slow, deep-penetrating bolide at 11.48 km/s would create a sustained sonic boom (shockwave) that travels differently through the atmosphere and into the ocean than a high-velocity "disintegrator." With Europe and the USA having sustained rockfalls, it seems an undetected NEO has broken apart, or preliminary debris for an upcoming larger event. 

Marine Animal Disturbance Alert: A watch for cetacean strandings should be noted for Alaska, the surrounding Aleutian Islands and British Columbia. 

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Airburst above Gulf of Alaska, NE Pacific

2026, March 23. Gulf of Alaska, NE Pacific, Airburst. Coordinates: (54.6N, 144.1W). Time: 19:23UT. Altitude: 35 km. Velocity: 11.48 km/s. En...