ZJ 0049 EAST CHINA SEA TRIAL SHIP “EN TAI”IN AREA BOUNDED BY THE LINES JOINING 28-23.0N 121-49.7E, 28-23.0N 121-54.8E, 28-18.0N 121-48.7E, 28-18.0N 121-47.4E(China Geodetic Coordinate System 2000) FROM 182300UTC TO 190730UTC JAN. WIDE BERTH REQUESTED ZHEJIANG MSA CHINA .