SECURITE 051500 UTC OCT 2023 NAVAREA IX (.) 371/23 (.) CENTRAL GULF (.) QATAR (.)CHARTS BA 2523 AND 2886 2. GEOTECHNICAL SURVEY(DRILLING ACTIVITIES) WILL BE CONDUCTED BY VESSEL “GARD HORIZON” FROM 05 OCT 23 IN AREA BOUNDED BY FOLLOWING COORDINATES: 26-35.69N 051-51.01E 26-33.98N 051-58.95E 26-37.21N 051-55.54E 26-38.50N 051-55.98E 26-38.13N 051-57.10E 26-38.37N 051-57.05E 26-38.36N 051-56.92E 26-38.32N 051-56.86E 26-40.39N 052-00.70E 26-40.23N 051-54.98E 26-42.78N 051-53.15E 26-46.71N 051-54.25E 3. MARINERS CAUTIONED (.) COMMUNICATE WITH VESSEL PRIOR ENTERING 500 METER RADIUS