{"type": "FeatureCollection", "_meta": {"__meta__": "synthetic", "disclaimer": "Synthetic demo data inspired by real Baltic geography, MMSI/OUI conventions, and infrastructure. Not real observations.", "dataset": "s6-multi-stage-combo/s6_coastguard_drone_path", "version": "1.0"}, "features": [{"type": "Feature", "properties": {"featureId": "s6-coastguard-drone-path", "name": "Coastguard inspection drone (DECOY)", "mac": "90:3A:E6:11:22:33", "decoy": true, "altitudes_m": [0.0, 90.0, 95.0, 0.0], "timestamps": ["2025-10-15T08:30:00.000000Z", "2025-10-15T08:35:00.000000Z", "2025-10-15T08:45:00.000000Z", "2025-10-15T08:55:00.000000Z"]}, "geometry": {"type": "LineString", "coordinates": [[26.01, 60.1465, 0.0], [26.013, 60.1495, 90.0], [26.009, 60.1475, 95.0], [26.01, 60.1465, 0.0]]}}]}