1. SPACE LAUNCH OPERATION NROL-172 WILL BE CONDUCTED FROM VANDENBERG SFB WITH OFFSHORE SURFACE AREAS CONSIDERED HAZARDOUS TO VESSELS ON THE FOLLOWING WINDOWS OF LOCATIONS, DATES, AND TIMES: HAZARDOUS WINDOW-1 HAZARD AREA 1 32° 50' 0" N 119° 8' 0" W 32° 39' 0" N 119° 11' 0" W 34° 35' 0" N 120° 39' 0" W 34° 40' 0" N 120° 38' 0" W 34° 27' 0" N 120° 15' 0" W TO BEGINNING 32.83333333 -119.13333333 32.65 -119.18333333 34.58333333 -120.65 34.66666667 -120.63333333 34.45 -120.25 TO BEGINNING DATES AND TIMES: 112228Z MAY TO 120251Z MAY 2026---- (PRIMARY) 122215Z MAY TO 130238Z MAY 2026---- (BACKUP DAY) 132201Z MAY TO 140224Z MAY 2026---- (BACKUP DAY) 142147Z MAY TO 150210Z MAY 2026---- (BACKUP DAY) 152133Z MAY TO 160156Z MAY 2026---- (BACKUP DAY) 162119Z MAY TO 170142Z MAY 2026---- (BACKUP DAY) 172105Z MAY TO 180128Z MAY 2026---- (BACKUP DAY) 182051Z MAY TO 190114Z MAY 2026---- (BACKUP DAY)
HAZARD WINDOW -2 HAZARD AREA - 1 29° 4' 0" N 117° 27' 0" W 29° 24' 0" N 117° 48' 0" W 30° 25' 0" N 117° 56' 0" W 29° 44' 0" N 117° 3' 0" W 29° 15' 0" N 116° 59' 0" W TO BEGINNING
29.06666667 -117.45 29.4 -117.8 30.41666667 -117.93333333 29.73333333 -117.05 29.25 -116.98333333 TO BEGINNING DATES AND TIMES: 112228Z MAY TO 120310Z MAY 2026---- (PRIMARY) 122215Z MAY TO 130257Z MAY 2026---- (BACKUP DAY) 132201Z MAY TO 140243Z MAY 2026---- (BACKUP DAY) 142147Z MAY TO 150229Z MAY 2026---- (BACKUP DAY) 152133Z MAY TO 160215Z MAY 2026---- (BACKUP DAY) 162119Z MAY TO 170201Z MAY 2026---- (BACKUP DAY) 172105Z MAY TO 180147Z MAY 2026---- (BACKUP DAY) 182051Z MAY TO 190133Z MAY 2026---- (BACKUP DAY) 2. SURFACE VESSELS ARE STRONGLY ADVISED TO AVOID THIS AREA DEFINED DURING SPECIFIED DATES / TIMES. 3. DURING OPERATIONS, FRONTIER CONTROL WILL BE MANAGING HAZARDOUS AREA SURFACE TRAFFIC ON VHF MARINE BAND CHANNEL 16 AND CHANNEL 6.
