{"__meta__": "synthetic", "disclaimer": "Synthetic demo data inspired by real Baltic geography, MMSI/OUI conventions, and infrastructure. Not real observations.", "dataset": "s4-spoofed-ais-identity/coastal_radar", "version": "1.0"}
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{"timestamp": "2025-05-14T07:50:02.000000Z", "ts_epoch_ms": 1747209002000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050019, "lon": 25.050055, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 382.46, "classification": "surface_medium", "confidence": 0.814, "length_estimate_m": 31.4, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.79}
{"timestamp": "2025-05-14T07:50:04.000000Z", "ts_epoch_ms": 1747209004000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.05035, "lon": 25.049743, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 362.14, "classification": "surface_medium", "confidence": 0.884, "length_estimate_m": 28.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.77}
{"timestamp": "2025-05-14T07:50:06.000000Z", "ts_epoch_ms": 1747209006000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050045, "lon": 25.050003, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 349.0, "classification": "surface_medium", "confidence": 0.815, "length_estimate_m": 30.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.79}
{"timestamp": "2025-05-14T07:50:08.000000Z", "ts_epoch_ms": 1747209008000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050177, "lon": 25.049809, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 383.71, "classification": "surface_medium", "confidence": 0.862, "length_estimate_m": 31.5, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.78}
{"timestamp": "2025-05-14T07:50:10.000000Z", "ts_epoch_ms": 1747209010000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050578, "lon": 25.049759, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 392.54, "classification": "surface_medium", "confidence": 0.852, "length_estimate_m": 30.6, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.76}
{"timestamp": "2025-05-14T07:50:12.000000Z", "ts_epoch_ms": 1747209012000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050608, "lon": 25.049825, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 370.8, "classification": "surface_medium", "confidence": 0.868, "length_estimate_m": 32.1, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.76}
{"timestamp": "2025-05-14T07:50:14.000000Z", "ts_epoch_ms": 1747209014000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050657, "lon": 25.049537, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 362.82, "classification": "surface_medium", "confidence": 0.878, "length_estimate_m": 30.4, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.75}
{"timestamp": "2025-05-14T07:50:16.000000Z", "ts_epoch_ms": 1747209016000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050689, "lon": 25.049833, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 355.41, "classification": "surface_medium", "confidence": 0.817, "length_estimate_m": 30.3, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.75}
{"timestamp": "2025-05-14T07:50:18.000000Z", "ts_epoch_ms": 1747209018000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050705, "lon": 25.049475, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 378.95, "classification": "surface_medium", "confidence": 0.806, "length_estimate_m": 30.1, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.75}
{"timestamp": "2025-05-14T07:50:20.000000Z", "ts_epoch_ms": 1747209020000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050998, "lon": 25.049558, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 305.21, "classification": "surface_medium", "confidence": 0.892, "length_estimate_m": 31.3, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.73}
{"timestamp": "2025-05-14T07:50:22.000000Z", "ts_epoch_ms": 1747209022000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.050897, "lon": 25.049644, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 478.47, "classification": "surface_medium", "confidence": 0.829, "length_estimate_m": 31.1, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.74}
{"timestamp": "2025-05-14T07:50:24.000000Z", "ts_epoch_ms": 1747209024000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051003, "lon": 25.049408, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 362.5, "classification": "surface_medium", "confidence": 0.83, "length_estimate_m": 27.6, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.73}
{"timestamp": "2025-05-14T07:50:26.000000Z", "ts_epoch_ms": 1747209026000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051233, "lon": 25.049334, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 431.25, "classification": "surface_medium", "confidence": 0.822, "length_estimate_m": 28.6, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.71}
{"timestamp": "2025-05-14T07:50:28.000000Z", "ts_epoch_ms": 1747209028000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051297, "lon": 25.049266, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 360.79, "classification": "surface_medium", "confidence": 0.84, "length_estimate_m": 29.3, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.71}
{"timestamp": "2025-05-14T07:50:30.000000Z", "ts_epoch_ms": 1747209030000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051419, "lon": 25.049393, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 383.05, "classification": "surface_medium", "confidence": 0.889, "length_estimate_m": 29.6, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.71}
{"timestamp": "2025-05-14T07:50:32.000000Z", "ts_epoch_ms": 1747209032000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051598, "lon": 25.04922, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 427.8, "classification": "surface_medium", "confidence": 0.829, "length_estimate_m": 31.5, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.69}
{"timestamp": "2025-05-14T07:50:34.000000Z", "ts_epoch_ms": 1747209034000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051499, "lon": 25.049494, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 361.64, "classification": "surface_medium", "confidence": 0.768, "length_estimate_m": 28.4, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.7}
{"timestamp": "2025-05-14T07:50:36.000000Z", "ts_epoch_ms": 1747209036000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.05173, "lon": 25.04928, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 351.13, "classification": "surface_medium", "confidence": 0.873, "length_estimate_m": 32.1, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.69}
{"timestamp": "2025-05-14T07:50:38.000000Z", "ts_epoch_ms": 1747209038000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051773, "lon": 25.049107, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 381.68, "classification": "surface_medium", "confidence": 0.852, "length_estimate_m": 29.2, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.68}
{"timestamp": "2025-05-14T07:50:40.000000Z", "ts_epoch_ms": 1747209040000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051689, "lon": 25.049078, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 376.19, "classification": "surface_medium", "confidence": 0.814, "length_estimate_m": 29.8, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.69}
{"timestamp": "2025-05-14T07:50:42.000000Z", "ts_epoch_ms": 1747209042000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051745, "lon": 25.049205, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 345.2, "classification": "surface_medium", "confidence": 0.886, "length_estimate_m": 29.1, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.69}
{"timestamp": "2025-05-14T07:50:44.000000Z", "ts_epoch_ms": 1747209044000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051778, "lon": 25.049079, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 391.92, "classification": "surface_medium", "confidence": 0.823, "length_estimate_m": 28.9, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.68}
{"timestamp": "2025-05-14T07:50:46.000000Z", "ts_epoch_ms": 1747209046000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.051973, "lon": 25.049033, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 326.7, "classification": "surface_medium", "confidence": 0.813, "length_estimate_m": 31.8, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.67}
{"timestamp": "2025-05-14T07:50:48.000000Z", "ts_epoch_ms": 1747209048000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052201, "lon": 25.048853, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 389.15, "classification": "surface_medium", "confidence": 0.816, "length_estimate_m": 30.6, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.66}
{"timestamp": "2025-05-14T07:50:50.000000Z", "ts_epoch_ms": 1747209050000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052386, "lon": 25.048852, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 368.37, "classification": "surface_medium", "confidence": 0.845, "length_estimate_m": 29.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.65}
{"timestamp": "2025-05-14T07:50:52.000000Z", "ts_epoch_ms": 1747209052000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052442, "lon": 25.048747, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 368.05, "classification": "surface_medium", "confidence": 0.812, "length_estimate_m": 29.2, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.64}
{"timestamp": "2025-05-14T07:50:54.000000Z", "ts_epoch_ms": 1747209054000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052218, "lon": 25.04878, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 399.12, "classification": "surface_medium", "confidence": 0.83, "length_estimate_m": 30.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.65}
{"timestamp": "2025-05-14T07:50:56.000000Z", "ts_epoch_ms": 1747209056000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052529, "lon": 25.048863, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 393.49, "classification": "surface_medium", "confidence": 0.878, "length_estimate_m": 30.5, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.64}
{"timestamp": "2025-05-14T07:50:58.000000Z", "ts_epoch_ms": 1747209058000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052355, "lon": 25.048744, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 418.06, "classification": "surface_medium", "confidence": 0.819, "length_estimate_m": 30.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.65}
{"timestamp": "2025-05-14T07:51:00.000000Z", "ts_epoch_ms": 1747209060000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052642, "lon": 25.048614, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 373.5, "classification": "surface_medium", "confidence": 0.84, "length_estimate_m": 30.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.63}
{"timestamp": "2025-05-14T07:51:02.000000Z", "ts_epoch_ms": 1747209062000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052758, "lon": 25.048844, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 355.22, "classification": "surface_medium", "confidence": 0.821, "length_estimate_m": 28.8, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.63}
{"timestamp": "2025-05-14T07:51:04.000000Z", "ts_epoch_ms": 1747209064000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.053102, "lon": 25.048422, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 368.96, "classification": "surface_medium", "confidence": 0.817, "length_estimate_m": 28.7, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.6}
{"timestamp": "2025-05-14T07:51:06.000000Z", "ts_epoch_ms": 1747209066000, "track_id": "T-7741", "sensor_id": "RAD-COAST-HEL-01", "lat": 60.052953, "lon": 25.048587, "sog_kn": 9.9, "cog_deg": 346.0, "rcs_m2": 419.86, "classification": "surface_medium", "confidence": 0.852, "length_estimate_m": 29.4, "heading_deg": 346.0, "speed_kn": 9.9, "source_sensorId": "RAD-COAST-HEL-01", "source_type": "coastal_radar", "platform_altitude_m": 0, "altitude_m": 0, "mmsi_hint": null, "range_nm": 6.61}
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