[Niny A Ants ows quae6“: “rE On the afternoon of Y~minus~l1, YOKE day was postponed one day. For the most part this merely involved setting back the schedule accordingly. Nowever, it did necessitate return of certain personnel of the technical measurements unit to the ICM "Lame Duck," anchored downwind from ZERO point, to refuel generators and reset clocks on the cascade impactors, The Technical Measurements Unit also checked materials at other installations, replacing these which had becane damiged by showers or long exposure to the sun. Cn the morning of YOKE day the BALROND ras anchored about ly miles from ZERO island, and at about H-plus-30 minutes ect undermy,. | The lagoon ' reontry patrol boats for this opera ‘on were put in the water before the CVE got undammy, preced:ng reeutry into the ZERO area and checking intensities over the ertire distance fron the pre-shot anchorage to the new berth in the vicirity of ZERO tcland. The number of these reentry patrol boats was increased for YOKE day; four from the BATROKO and two fran the MT MCKINLEY, Meanwhile various other schediied RadSafe missions followed the same pattern of operations which this report has outlined for Tesu X-RAY. All of these missions were accomplished successfully, and in most cases were completed ahead of schedule. An additional mission on YORE day was accanplished by a party of ~ medical officers who explored islands in the immediate vicinity of the test site in an attempt to recover flora and fauna to be used to study the effects of the weapon upon then, — ~ 6 < Men es le, trey hee Et th tower ewe a é owen . ny tp : led ~ ¢ .s uo! wow et ~ oo - ‘ L \ ww ° 7 —_~ ~ pet te 7