CPA_ais-226013720|ais-226016410The two ships will approach within ~4 min to a distance of only ~73 m: “PYTHAGORE” (8 kn) ↔ “IMMACULATA” (6 kn). In reciprocal/intersecting travel, such a close approach is a sign of collision risk. It is an automatic CPA calculation — not a confirmed event, but an early signal. 📋 EVIDENCE (AIS · aisstream): “PYTHAGORE” MMSI 226013720 @ 49.4706,0.1338 · 8 kn · route 103° | “IMMACULATA” MMSI 226016410 @ 49.4716,0.1553 · 6 kn · route 248° | Measurement: 2026-09-21 10:52:20 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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