TNT equivalent
[[File:Operation Castle - Nectar - Detonation.ogv|thumb|right| Test shot "Nectar" of [[Operation Castle]] produced a yield of 1.69 [[TNT equivalent|megaton]]s. Note the distinctive near instantaneous "[[Bhangmeter|double flash]]", with the second being brighter than the sun, and the [[blast wave]] slowly, by comparison, spreading out turning the calm [[Elugelab]] ocean water a [[mie scattering|frothy white]] as it passes. The maximum average [[nuclear fireball]] radius is approximately . The outdoor blast and thermal burn [[LD50]]s would be 8 and 12 km respectively. Assuming personnel did not take any prompt countermeasures.]]