Seeeneeeeee
OPERAWION
DATE:
TIME:
REDWING -
PPG Time
2 May 19,6
0556
Zuni
GMT
Sponsor:
27 May LOSC
1756
SITE:
Ucn,
PPG - Bikini - Tare
118 egt
165° 22!
TOVAL YIELD: 3.5 mt
Site elevation:
HEIGHT OF BURST:
FIREBALL DATA:
“
Pime to lst minimum:
Time to 2nd maximum:
Radius at 2nd waximum:
CRATIR DATA:
UB"
og"
ON
¥#
Sea Level
9 ft
160 + 184 msec
1.705 + 2.15 sec
5,208 ft
Diameter:
2,310 ft
Depth:
103 ft
Lip:
No apparent lip
TYPE OF BURST AND PLACHMSNT:
Surface burst from platform
on coral soil and over water
CLOUD TOPWIGHT: 79,c0O0 ft MSL
CLOUD BOTLOM iKIG!
4G,000 £ MSL
REMARKS:
The on-site fallout pattern was drawn from island readings taken by
scientific project 2.65 supplemented by fallout sample collection on
rafts and barges in the lagoon.
The measured field decay expontne
was used to extrapolate the dose-rate readings to I41 hour.
It
was observed that the water adjacent to the benches of the northern
islauds cf the atoli was pene.ally much more hishly contaminuted than
the islands.
The off-site fallout pattern was drawn from oceanographic surveys.
he oceanographic surveys used detector probes for measuring the doserate at the surtace, plus the allied equipment necessary for measuring
the dose-rate at depths to and below the thermocline (watcor-sampling
equipment for the taking of surface samples and for the collection of
samples from any desired depth).
The dose-rate readings were extrapolated
Lo WL hour by using the decay measurements ot the samples collected.
The portion of fullout that penetrated below the thermosline is unknown.
Rather than attempt to estimate the percentage, the results t'or the
dose rates assume no ponetration beyond the depth «© mixing.
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