yo TAB A OSAGE EVENT OPERATION REDWING 1. OSAGE device was detonated at 131)M, 16 June 1956 at an altitude of 700 feet. The shot took place over RUNIT Ieland (YVONNE) of ENIWETOK atoll. Ss 2. The cloud attained a maxinnm height of 21,000 toot Throughout the assent the stem trailed te poft.” The stem and upper part of the puff appeared to dissipate within 10 mimtes after detonation leaving a brownish-orange colored ‘cloud at an estimated altitu de of 19,000 feet. 3. — DNA Movement of the cloud was not apparent to the observer on Parry ~slands however, aircraft reported the cloud moving due north at less vran 10 knots. Lh. P2V aerial reconnaissanceand survey aircraft conducted a survey of the islands North of JAPTAN at H+l Hour, The results of the P2V survey at saved that OSAGE had deposited very little fallout on any of ‘the islands ix the ENIWETOK Atoll. 5. Based on the P2V lagoon survey, reentry hour was announced for 1.590M, 16 June. Air and surface radex notices were withdrawn concurrent “th the reentry announcement. 6. WB-S5O cloud trackers were not utilized for OSAG. FE-SEFEN-LOG-BRs