{"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_rendezvous_zone", "version": "1.0"}, "features": [{"type": "Feature", "properties": {"featureId": "s6-rendezvous-zone", "name": "AALLOTAR \u00d7 SUMUKKO rendezvous box", "t_start": "2025-10-15T06:35:00.000000Z", "t_end": "2025-10-15T06:57:00.000000Z"}, "geometry": {"type": "Polygon", "coordinates": [[[23.87, 59.75], [23.95, 59.75], [23.95, 59.77], [23.87, 59.77], [23.87, 59.75]]]}}]}