OPERATION CROSSROADS DATE: TIME: PPG time 1 Jul 1946 0900 Able CMT 30 June 1946 2200 Sponsor: SITE: LASL and DOD PPG - Bikini 11° 37' 165° 29' 10" 28" Site elevation: TOTAL YIELD: 23 kt HEIGHT OF BURST: N E Sea level 520 ft TYPE OF BURST AND PLACEMENT: Air burst over water FIREBALL DATA: Time to lst minimum: Time to 2nd maximum: Radius at 2nd maximum: NM NM ~ 576 ft CLOUD TOP HEIGHT: 40,000 ft MSL CLOUD BOTTOM HETGHT: Not available CRATER DATA: No crater REMARKS: The residual radioactivity on target vessels was low. On D+l day, radioactivities greater than O.lr per 24 hours were found on only 13 vessels. The residual radioactivity in the water after H-hour was negligible.