- Romeo OPERATION CASTLE DATE: TIME: PPP time 27 Mer lgbh 0630 GMT Sponsor: 26 Mar 15h 1830 SITE: LAS PPG - Bikini - Shot 1 Crater 11° ey" 165° 16' 23" Site elevation: TOTAL YIELD: 11 Mt HEIGHT OF BURST: ON & Sea level 7 ft CLOUD TOP HEIGHT: 110,000 ft MSL CLOUD BOYTOM HEiGIT: 48,500 ft MSL TYPE OF BURST AND PLACEMENT: Surface purst from barge on water Water depth: 240 ft REMARKS: The individusl island dose rates were taken from aerial surveys by the Radiological Safety organization and corrected to Htl hour with the t-1** decay approximation. The contamination due to previous ———— shots was subtracted. 71