UNCLASSIFIED a monitor departed by helicopter to monitor the area in the vicinity of ‘“ty. . wel rn. ¢ ie hos \ _— the land cable winch on ZERO islam and determine the feasibility of scheduled missions attempting to work in that area. He also checked the _” communication equipment stowed in a cache at the tip of the island fe, beyond ZERO point, and found it to be damaged and inoperable, sat ‘ On Parry Island a monitor boarded the AVR-53 which departed at a9 H-plus-10 minutes for ZERO island to stand by for air-sea rescue in the - AVR-38 also departed Parry Island at this same hour with a group of five monitors aboard who would an “ Ot ~ oe ‘‘ - ‘ 4 event of accident to one of the helicopters, be. N: be put ashore at ZERO island to accompany urgent missions involving _ recovery of samples from land cables and from the "gamma stations", ae One monitor in this latter group remained aboard the AVR to act as monitor for that vessel and to operate the radio until communications could be established ashore. At about H-plus 45 minutes the BAIROKO got underway, and at a point about 5 miles from ZERO island two TG-7.6 boats, a PPB and ICYP were loavered into the water while underway, These boats, equipped with radios and radar target screens, served as the lagoon reentry patrol, With monitors and radionen aboard they preceded reentry into the vicinity of ZERO island, monitoring water intensities and radioing the informtion in code to RadOps. By the use of radar tracking, RadOps plotted a con~ timous track of these boats on a chart overlay, marking intensities where indicated by radioed information, later, when the BAIROKO had anchored off ZERO island, these boats continued with a survey of the lagoon area, On this latter mission they folloved a prescribed course, and the same system of recording intensities prevailed. - . + e aoa n . 59 - : “ay . te ., toss i eee ~s fs, . <, . meet ’ a » i, - ’ Rak. . . o mo oe twee 8 ie, Trea ao, <. = me iad fee Ma TN . . Te. wt. hy oy co aoa . eee ‘ ot te sce . a -_ , pete cy ke eee “ . —- . ad ~ tt . . ro age? Cae No ReI MEME . + . . / r to al * . L - - = “ /