The D + 1 flights located the EOB and delineated the contaminated are-. (Figure 3.7). A cei tarrinated patch was suspected to be northeast of Bikini, based on the control cecter plots. During the data reduction, a navigational reporting error was discovered which changedthe relatively isolated patch from the northeast to a position almost due east of Bikini. TABLF 3.2 Altitude ALTITUDE RADIATION DATA OVER WATER mr/hr* mr/hrt mr/hrt ft 1,000 0.41 800 0.52 700 600 0.12 0.135 0.225 0.225 500 0.135 0.29 400 300 0.175 0.175 0.38 0.42 200 0.225 0.62 1.1 2.1 1.4, 1.78 50 2.6, 3.08 * Tewa + 3, 12-01. N, 164-41 E, Top Hat detector in P2V-5. t Tewa + 3, 12-11 N, 165-02 E, Top Hat detector in P2V-5. t Seminole D-day, off Janet, scintameter, TH-3, in helicopter. § Values from repeat runs. The D + 2 flights (Figure 3.8) investigated the northeast sector without discovering contamination. The eastern contamination was not suspected until the data-reduction period, so no further examination was scheduled in that sector. The D + 3 flights (Figure 3.9) reconfirmed the hot area. No further flights were scheduled, TABLE 3.3 SUMMARY OF FALLOUT DISTRIBUTION, ZUNI Isodose Area mr/hr mi? Difference Area mi? Average Contamination mr/hr mec D+1 165 165 1.25 0.25 0.125 1.25 4,677 8,433 4,512 3,756 0.59 0.18 0.025 13,683 5,250 0.06 757 6,775 757 6,018 1.25 0.50 D+3 0.75 0.25 \ as low intensities were encountered on this day. The fallout distribution is summarized in Table 3.3. 3.3.3 Shot Flathead. The D-day flight discovered relatively high dose rate just west of Bikini (Figure 3.10). The position immediately adjacent to the reef indicated that this could be lagoon water passing over the reef, rather than fallout. This area was not completely mixed, 31