{"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_drone_path_3d", "version": "1.0"}, "features": [{"type": "Feature", "properties": {"featureId": "s6-drone-path-3d", "name": "Suspect drone 3D path (DJI)", "mac": "5C:E2:8C:DD:EE:01", "altitudes_m": [0.0, 90.0, 180.0, 180.0, 160.0, 90.0, 0.0], "timestamps": ["2025-10-15T13:40:00.000000Z", "2025-10-15T13:42:00.000000Z", "2025-10-15T13:45:10.000000Z", "2025-10-15T13:55:00.000000Z", "2025-10-15T14:05:00.000000Z", "2025-10-15T14:15:00.000000Z", "2025-10-15T14:20:00.000000Z"]}, "geometry": {"type": "LineString", "coordinates": [[24.76, 59.985, 0.0], [24.79, 59.995, 90.0], [24.835, 60.002, 180.0], [24.852, 60.013, 180.0], [25.02, 60.04, 160.0], [25.13, 60.055, 90.0], [25.15, 60.06, 0.0]]}}]}