The U.S. Vela satellites 6911 took over the typical “ Double zip ” (the first short and very intense, followed by a longer and less bright) of a nuclear explosion in the atmosphere .
Sa US Vela satellite 6911 kinuha sa ibabaw ng mga karaniwang “Double zip” (ang unang maikli at masyadong matindi, na sinusundan ng isang mas mahaba at mas maliwanag) ng isang nuclear pagsabog sa himpapawid.