CPA_ais-256830000|ais-319554000Two vessels will approach within approximately ~84 m over ~8 minutes: "OCEANIC 143" (16 kn) ↔ "CONSTANCE" (8 kn). At such close proximity on converging/crossing courses, this approach distance is a collision risk indicator. Automatic CPA calculation — unverified event, early warning signal. 📋 EVIDENCE (AIS · aisstream): "OCEANIC 143" MMSI 256830000 @ 43.7075,7.4153 · 16 kn · heading 47° | "CONSTANCE" MMSI 319554000 @ 43.7362,7.4724 · 8 kn · heading 255° | Timestamp: 2026-09-21 15:09:47 UTC
Fast forward to the AIS position, speed and heading of the two ships; If the closest passage distance (CPA) will fall below 0.5 nautical miles, a warning will be generated.
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