Open Waters AIS

{'type': 'object', 'required': ['bbox'], 'properties': {'bbox': {'type': 'object', 'required': ['min_lat', 'min_lon', 'max_lat', 'max_lon'], 'properties': {'max_lat': {'type': 'number', 'description': 'north edge, degrees, -90 to 90'}, 'max_lon': {'type': 'number', 'description': 'east edge, degrees, -180 to 180'}, 'min_lat': {'type': 'number', 'description': 'south edge, degrees, -90 to 90'}, 'min_lon': {'type': 'number', 'description': 'west edge, degrees, -180 to 180'}}, 'additionalProperties': False}, 'flag': {'type': 'string', 'description': 'only vessels flying this flag: ISO 3166-1 alpha-2, e.g. NO, FI, MH'}, 'kind': {'type': 'string', 'description': 'only this kind: vessel, aton (aid to navigation), base (base station), or sar (search and rescue aircraft)'}, 'limit': {'type': 'integer', 'description': 'rows to return: default 50, maximum 200'}, 'types': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 255, 'minimum': 0}, 'description': 'only these ITU ship type codes, e.g. 30 fishing, 36 sailing, 37 pleasure craft, 52 tug, 60 passenger, 70 cargo, 80 tanker; a code ending in 0 matches its decade, so 70 matches 70 to 79'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['vessels', 'total', 'truncated', 'attribution'], 'properties': {'total': {'type': 'integer', 'description': 'vessels matched before the limit was applied'}, 'vessels': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['mmsi', 'kind', 'seen', 'age_s', 'source', 'station'], 'properties': {'cog': {'type': ['null', 'number'], 'description': 'course over ground, degrees true'}, 'eta': {'type': 'string', 'description': 'estimated arrival as sent, MM-DD HH:MM UTC or MM-DD; AIS carries no year, so read it as the next occurrence'}, 'imo': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0, 'description': "IMO number, once the vessel's static data has been heard"}, 'lat': {'type': ['null', 'number'], 'description': 'latitude of the last position, degrees; absent when no position has been heard'}, 'lon': {'type': ['null', 'number'], 'description': 'longitude of the last position, degrees'}, 'sog': {'type': ['null', 'number'], 'description': 'speed over ground, knots'}, 'beam': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'beam, metres'}, 'flag': {'type': 'string', 'description': "ISO 3166-1 alpha-2 code of the flag state, from the MMSI's maritime identification digits"}, 'kind': {'type': 'string', 'description': 'vessel, aton (aid to navigation), base (base station), or sar (search and rescue aircraft)'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'name': {'type': 'string', 'description': "name from the vessel's static data, when heard"}, 'seen': {'type': 'string', 'description': 'time of the last message heard, RFC 3339 UTC'}, 'type': {'type': 'integer', 'maximum': 255, 'minimum': 0, 'description': 'ITU ship and cargo type code, or the aid type for an aton'}, 'age_s': {'type': 'integer', 'description': 'seconds since seen'}, 'length': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'overall length, metres'}, 'source': {'type': 'string', 'description': 'feed or station kind the last message came from'}, 'bearing': {'type': ['null', 'number'], 'description': 'degrees true from the search centre to the vessel (find_vessels_near)'}, 'draught': {'type': ['null', 'number'], 'description': 'maximum static draught, metres'}, 'heading': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'true heading, degrees'}, 'station': {'type': 'string'}, 'callsign': {'type': 'string'}, 'type_name': {'type': 'string'}, 'nav_status': {'type': ['null', 'integer'], 'maximum': 255, 'minimum': 0, 'description': 'AIS navigational status code'}, 'destination': {'type': 'string', 'description': 'destination as typed by the crew: a port name, a UN/LOCODE, or nothing useful'}, 'distance_nm': {'type': ['null', 'number'], 'description': 'nautical miles from the search centre (find_vessels_near)'}, 'nav_status_name': {'type': 'string'}}, 'additionalProperties': False}}, 'truncated': {'type': 'boolean', 'description': 'true when total exceeds the rows returned; narrow the query or raise limit'}, 'attribution': {'type': 'object', 'description': 'credit line per source kind in the rows, to show with the data', 'additionalProperties': {'type': 'string'}}, 'unknown_imo': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested IMO numbers matching no vessel the network has heard'}, 'unknown_mmsi': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested MMSIs matching no vessel the network has heard'}}, 'additionalProperties': False}

{'type': 'object', 'properties': {'lat': {'type': ['null', 'number'], 'description': 'centre latitude, degrees; give lat and lon, or mmsi'}, 'lon': {'type': ['null', 'number'], 'description': 'centre longitude, degrees'}, 'flag': {'type': 'string', 'description': 'only vessels flying this flag: ISO 3166-1 alpha-2, e.g. NO, FI, MH'}, 'kind': {'type': 'string', 'description': 'only this kind: vessel, aton, base, or sar'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0, 'description': "centre on this vessel's last position instead of lat and lon; the vessel itself is left out of the results"}, 'limit': {'type': 'integer', 'description': 'rows to return: default 50, maximum 200'}, 'types': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 255, 'minimum': 0}, 'description': 'only these ITU ship type codes; a code ending in 0 matches its decade'}, 'radius_nm': {'type': 'number', 'description': 'search radius in nautical miles: default 10, maximum 50'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['vessels', 'total', 'truncated', 'attribution'], 'properties': {'total': {'type': 'integer', 'description': 'vessels matched before the limit was applied'}, 'vessels': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['mmsi', 'kind', 'seen', 'age_s', 'source', 'station'], 'properties': {'cog': {'type': ['null', 'number'], 'description': 'course over ground, degrees true'}, 'eta': {'type': 'string', 'description': 'estimated arrival as sent, MM-DD HH:MM UTC or MM-DD; AIS carries no year, so read it as the next occurrence'}, 'imo': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0, 'description': "IMO number, once the vessel's static data has been heard"}, 'lat': {'type': ['null', 'number'], 'description': 'latitude of the last position, degrees; absent when no position has been heard'}, 'lon': {'type': ['null', 'number'], 'description': 'longitude of the last position, degrees'}, 'sog': {'type': ['null', 'number'], 'description': 'speed over ground, knots'}, 'beam': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'beam, metres'}, 'flag': {'type': 'string', 'description': "ISO 3166-1 alpha-2 code of the flag state, from the MMSI's maritime identification digits"}, 'kind': {'type': 'string', 'description': 'vessel, aton (aid to navigation), base (base station), or sar (search and rescue aircraft)'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'name': {'type': 'string', 'description': "name from the vessel's static data, when heard"}, 'seen': {'type': 'string', 'description': 'time of the last message heard, RFC 3339 UTC'}, 'type': {'type': 'integer', 'maximum': 255, 'minimum': 0, 'description': 'ITU ship and cargo type code, or the aid type for an aton'}, 'age_s': {'type': 'integer', 'description': 'seconds since seen'}, 'length': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'overall length, metres'}, 'source': {'type': 'string', 'description': 'feed or station kind the last message came from'}, 'bearing': {'type': ['null', 'number'], 'description': 'degrees true from the search centre to the vessel (find_vessels_near)'}, 'draught': {'type': ['null', 'number'], 'description': 'maximum static draught, metres'}, 'heading': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'true heading, degrees'}, 'station': {'type': 'string'}, 'callsign': {'type': 'string'}, 'type_name': {'type': 'string'}, 'nav_status': {'type': ['null', 'integer'], 'maximum': 255, 'minimum': 0, 'description': 'AIS navigational status code'}, 'destination': {'type': 'string', 'description': 'destination as typed by the crew: a port name, a UN/LOCODE, or nothing useful'}, 'distance_nm': {'type': ['null', 'number'], 'description': 'nautical miles from the search centre (find_vessels_near)'}, 'nav_status_name': {'type': 'string'}}, 'additionalProperties': False}}, 'truncated': {'type': 'boolean', 'description': 'true when total exceeds the rows returned; narrow the query or raise limit'}, 'attribution': {'type': 'object', 'description': 'credit line per source kind in the rows, to show with the data', 'additionalProperties': {'type': 'string'}}, 'unknown_imo': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested IMO numbers matching no vessel the network has heard'}, 'unknown_mmsi': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested MMSIs matching no vessel the network has heard'}}, 'additionalProperties': False}

{'type': 'object', 'properties': {'bbox': {'type': ['null', 'object'], 'required': ['min_lat', 'min_lon', 'max_lat', 'max_lon'], 'properties': {'max_lat': {'type': 'number', 'description': 'north edge, degrees, -90 to 90'}, 'max_lon': {'type': 'number', 'description': 'east edge, degrees, -180 to 180'}, 'min_lat': {'type': 'number', 'description': 'south edge, degrees, -90 to 90'}, 'min_lon': {'type': 'number', 'description': 'west edge, degrees, -180 to 180'}}, 'description': 'report the stations covering this box and the vessels currently in it', 'additionalProperties': False}, 'station': {'type': 'string', 'description': "a station id from an earlier result, for that station's numbers"}}, 'additionalProperties': False}

{'type': 'object', 'required': ['time', 'summary', 'sources', 'stations', 'vessels', 'events_per_second'], 'properties': {'area': {'type': ['null', 'object'], 'required': ['bbox', 'vessels', 'stations'], 'properties': {'bbox': {'type': 'object', 'required': ['min_lat', 'min_lon', 'max_lat', 'max_lon'], 'properties': {'max_lat': {'type': 'number', 'description': 'north edge, degrees, -90 to 90'}, 'max_lon': {'type': 'number', 'description': 'east edge, degrees, -180 to 180'}, 'min_lat': {'type': 'number', 'description': 'south edge, degrees, -90 to 90'}, 'min_lon': {'type': 'number', 'description': 'west edge, degrees, -180 to 180'}}, 'additionalProperties': False}, 'vessels': {'type': 'integer', 'description': 'vessels with a position inside the box'}, 'stations': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['station', 'source', 'vessels', 'events_24h', 'last_age_s'], 'properties': {'bbox': {'type': ['null', 'object'], 'required': ['min_lat', 'min_lon', 'max_lat', 'max_lon'], 'properties': {'max_lat': {'type': 'number', 'description': 'north edge, degrees, -90 to 90'}, 'max_lon': {'type': 'number', 'description': 'east edge, degrees, -180 to 180'}, 'min_lat': {'type': 'number', 'description': 'south edge, degrees, -90 to 90'}, 'min_lon': {'type': 'number', 'description': 'west edge, degrees, -180 to 180'}}, 'description': 'extent of the positions this station has heard', 'additionalProperties': False}, 'source': {'type': 'string'}, 'station': {'type': 'string'}, 'vessels': {'type': 'integer', 'description': 'distinct vessels heard in the last 30 minutes'}, 'events_24h': {'type': 'integer'}, 'last_age_s': {'type': 'integer'}}, 'additionalProperties': False}, 'description': 'stations whose heard extent overlaps the box'}}, 'additionalProperties': False}, 'note': {'type': 'string'}, 'time': {'type': 'string'}, 'sources': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['kind', 'vessels', 'vessels_exclusive', 'events_24h', 'last_age_s', 'license', 'attribution'], 'properties': {'kind': {'type': 'string'}, 'delay': {'type': ['null', 'object'], 'required': ['p50', 'p99'], 'properties': {'p50': {'type': 'number', 'description': 'median delay in seconds'}, 'p99': {'type': 'number', 'description': '99th percentile delay in seconds'}}, 'description': 'seconds from broadcast to arrival over the last position reports from this source', 'additionalProperties': False}, 'license': {'type': 'string'}, 'vessels': {'type': 'integer', 'description': 'distinct vessels heard from this source in the last 30 minutes'}, 'events_24h': {'type': 'integer'}, 'last_age_s': {'type': 'integer', 'description': 'seconds since the source last delivered a message'}, 'attribution': {'type': 'string'}, 'description': {'type': 'string'}, 'vessels_exclusive': {'type': 'integer', 'description': 'of those, heard by no other source'}}, 'additionalProperties': False}}, 'station': {'type': ['null', 'object'], 'required': ['station', 'source', 'vessels', 'events_24h', 'last_age_s'], 'properties': {'bbox': {'type': ['null', 'object'], 'required': ['min_lat', 'min_lon', 'max_lat', 'max_lon'], 'properties': {'max_lat': {'type': 'number', 'description': 'north edge, degrees, -90 to 90'}, 'max_lon': {'type': 'number', 'description': 'east edge, degrees, -180 to 180'}, 'min_lat': {'type': 'number', 'description': 'south edge, degrees, -90 to 90'}, 'min_lon': {'type': 'number', 'description': 'west edge, degrees, -180 to 180'}}, 'description': 'extent of the positions this station has heard', 'additionalProperties': False}, 'source': {'type': 'string'}, 'station': {'type': 'string'}, 'vessels': {'type': 'integer', 'description': 'distinct vessels heard in the last 30 minutes'}, 'events_24h': {'type': 'integer'}, 'last_age_s': {'type': 'integer'}}, 'additionalProperties': False}, 'summary': {'type': 'string'}, 'vessels': {'type': 'object', 'required': ['total', 'with_position'], 'properties': {'total': {'type': 'integer', 'description': 'vessels heard in the last 30 minutes'}, 'with_position': {'type': 'integer'}}, 'additionalProperties': False}, 'stations': {'type': 'object', 'required': ['total', 'active'], 'properties': {'total': {'type': 'integer'}, 'active': {'type': 'integer', 'description': 'heard within the last 5 minutes'}}, 'additionalProperties': False}, 'events_per_second': {'type': 'number'}}, 'additionalProperties': False}

{'type': 'object', 'properties': {'imo': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'IMO numbers to look up, counted with mmsi against the same cap; a vessel is found by IMO only once its static data has been heard'}, 'mmsi': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'MMSIs to look up; anonymous calls may pass 10 identifiers per call, a personal token 50'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['vessels', 'total', 'truncated', 'attribution'], 'properties': {'total': {'type': 'integer', 'description': 'vessels matched before the limit was applied'}, 'vessels': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['mmsi', 'kind', 'seen', 'age_s', 'source', 'station'], 'properties': {'cog': {'type': ['null', 'number'], 'description': 'course over ground, degrees true'}, 'eta': {'type': 'string', 'description': 'estimated arrival as sent, MM-DD HH:MM UTC or MM-DD; AIS carries no year, so read it as the next occurrence'}, 'imo': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0, 'description': "IMO number, once the vessel's static data has been heard"}, 'lat': {'type': ['null', 'number'], 'description': 'latitude of the last position, degrees; absent when no position has been heard'}, 'lon': {'type': ['null', 'number'], 'description': 'longitude of the last position, degrees'}, 'sog': {'type': ['null', 'number'], 'description': 'speed over ground, knots'}, 'beam': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'beam, metres'}, 'flag': {'type': 'string', 'description': "ISO 3166-1 alpha-2 code of the flag state, from the MMSI's maritime identification digits"}, 'kind': {'type': 'string', 'description': 'vessel, aton (aid to navigation), base (base station), or sar (search and rescue aircraft)'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'name': {'type': 'string', 'description': "name from the vessel's static data, when heard"}, 'seen': {'type': 'string', 'description': 'time of the last message heard, RFC 3339 UTC'}, 'type': {'type': 'integer', 'maximum': 255, 'minimum': 0, 'description': 'ITU ship and cargo type code, or the aid type for an aton'}, 'age_s': {'type': 'integer', 'description': 'seconds since seen'}, 'length': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'overall length, metres'}, 'source': {'type': 'string', 'description': 'feed or station kind the last message came from'}, 'bearing': {'type': ['null', 'number'], 'description': 'degrees true from the search centre to the vessel (find_vessels_near)'}, 'draught': {'type': ['null', 'number'], 'description': 'maximum static draught, metres'}, 'heading': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'true heading, degrees'}, 'station': {'type': 'string'}, 'callsign': {'type': 'string'}, 'type_name': {'type': 'string'}, 'nav_status': {'type': ['null', 'integer'], 'maximum': 255, 'minimum': 0, 'description': 'AIS navigational status code'}, 'destination': {'type': 'string', 'description': 'destination as typed by the crew: a port name, a UN/LOCODE, or nothing useful'}, 'distance_nm': {'type': ['null', 'number'], 'description': 'nautical miles from the search centre (find_vessels_near)'}, 'nav_status_name': {'type': 'string'}}, 'additionalProperties': False}}, 'truncated': {'type': 'boolean', 'description': 'true when total exceeds the rows returned; narrow the query or raise limit'}, 'attribution': {'type': 'object', 'description': 'credit line per source kind in the rows, to show with the data', 'additionalProperties': {'type': 'string'}}, 'unknown_imo': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested IMO numbers matching no vessel the network has heard'}, 'unknown_mmsi': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested MMSIs matching no vessel the network has heard'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['mmsi'], 'properties': {'to': {'type': 'string', 'description': 'end, RFC 3339 UTC; default now'}, 'from': {'type': 'string', 'description': 'start, RFC 3339 UTC; default 24 hours before to. Anonymous and personal calls reach back 48 hours; feeder and commercial tokens reach the archive, up to 7 days per call'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0, 'description': "the vessel's MMSI; use search_vessels_by_name first when you only have a name"}, 'limit': {'type': 'integer', 'description': 'positions to return: default 50, maximum 200; when more match, the newest are kept'}, 'interval_minutes': {'type': 'integer', 'description': 'at most one position per this many minutes; by default the limit is spread over the range at a round spacing, reported as interval_s'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['mmsi', 'from', 'to', 'interval_s', 'positions', 'truncated', 'attribution'], 'properties': {'to': {'type': 'string'}, 'from': {'type': 'string', 'description': 'start of the range covered, after clamping to what the caller can reach: the last 48 hours, or the archive for feeder and commercial tokens'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'name': {'type': 'string'}, 'positions': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['seen', 'lat', 'lon'], 'properties': {'cog': {'type': ['null', 'number'], 'description': 'course over ground, degrees true'}, 'lat': {'type': 'number'}, 'lon': {'type': 'number'}, 'sog': {'type': ['null', 'number'], 'description': 'speed over ground, knots'}, 'seen': {'type': 'string', 'description': 'time of the report, RFC 3339 UTC'}, 'heading': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'true heading, degrees'}, 'nav_status': {'type': ['null', 'integer'], 'maximum': 255, 'minimum': 0, 'description': 'AIS navigational status code'}, 'nav_status_name': {'type': 'string'}}, 'additionalProperties': False}, 'description': 'oldest first'}, 'truncated': {'type': 'boolean', 'description': 'true when more positions matched than were returned; the newest were kept, so set from later or raise interval_minutes'}, 'interval_s': {'type': 'integer', 'description': 'at most one position per this many seconds; 0 is every position heard'}, 'attribution': {'type': 'object', 'description': 'credit line per source kind in the positions, to show with the data', 'additionalProperties': {'type': 'string'}}}, 'additionalProperties': False}

{'type': 'object', 'required': ['name'], 'properties': {'bbox': {'type': ['null', 'object'], 'required': ['min_lat', 'min_lon', 'max_lat', 'max_lon'], 'properties': {'max_lat': {'type': 'number', 'description': 'north edge, degrees, -90 to 90'}, 'max_lon': {'type': 'number', 'description': 'east edge, degrees, -180 to 180'}, 'min_lat': {'type': 'number', 'description': 'south edge, degrees, -90 to 90'}, 'min_lon': {'type': 'number', 'description': 'west edge, degrees, -180 to 180'}}, 'description': 'only vessels whose last position is inside this box', 'additionalProperties': False}, 'flag': {'type': 'string', 'description': 'only vessels flying this flag: ISO 3166-1 alpha-2, e.g. NO, FI, MH'}, 'name': {'type': 'string', 'description': 'text to find in the vessel name, at least 2 characters, case-insensitive'}, 'limit': {'type': 'integer', 'description': 'rows to return: default 50, maximum 200'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['vessels', 'total', 'truncated', 'attribution'], 'properties': {'total': {'type': 'integer', 'description': 'vessels matched before the limit was applied'}, 'vessels': {'type': ['null', 'array'], 'items': {'type': 'object', 'required': ['mmsi', 'kind', 'seen', 'age_s', 'source', 'station'], 'properties': {'cog': {'type': ['null', 'number'], 'description': 'course over ground, degrees true'}, 'eta': {'type': 'string', 'description': 'estimated arrival as sent, MM-DD HH:MM UTC or MM-DD; AIS carries no year, so read it as the next occurrence'}, 'imo': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0, 'description': "IMO number, once the vessel's static data has been heard"}, 'lat': {'type': ['null', 'number'], 'description': 'latitude of the last position, degrees; absent when no position has been heard'}, 'lon': {'type': ['null', 'number'], 'description': 'longitude of the last position, degrees'}, 'sog': {'type': ['null', 'number'], 'description': 'speed over ground, knots'}, 'beam': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'beam, metres'}, 'flag': {'type': 'string', 'description': "ISO 3166-1 alpha-2 code of the flag state, from the MMSI's maritime identification digits"}, 'kind': {'type': 'string', 'description': 'vessel, aton (aid to navigation), base (base station), or sar (search and rescue aircraft)'}, 'mmsi': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'name': {'type': 'string', 'description': "name from the vessel's static data, when heard"}, 'seen': {'type': 'string', 'description': 'time of the last message heard, RFC 3339 UTC'}, 'type': {'type': 'integer', 'maximum': 255, 'minimum': 0, 'description': 'ITU ship and cargo type code, or the aid type for an aton'}, 'age_s': {'type': 'integer', 'description': 'seconds since seen'}, 'length': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'overall length, metres'}, 'source': {'type': 'string', 'description': 'feed or station kind the last message came from'}, 'bearing': {'type': ['null', 'number'], 'description': 'degrees true from the search centre to the vessel (find_vessels_near)'}, 'draught': {'type': ['null', 'number'], 'description': 'maximum static draught, metres'}, 'heading': {'type': ['null', 'integer'], 'maximum': 65535, 'minimum': 0, 'description': 'true heading, degrees'}, 'station': {'type': 'string'}, 'callsign': {'type': 'string'}, 'type_name': {'type': 'string'}, 'nav_status': {'type': ['null', 'integer'], 'maximum': 255, 'minimum': 0, 'description': 'AIS navigational status code'}, 'destination': {'type': 'string', 'description': 'destination as typed by the crew: a port name, a UN/LOCODE, or nothing useful'}, 'distance_nm': {'type': ['null', 'number'], 'description': 'nautical miles from the search centre (find_vessels_near)'}, 'nav_status_name': {'type': 'string'}}, 'additionalProperties': False}}, 'truncated': {'type': 'boolean', 'description': 'true when total exceeds the rows returned; narrow the query or raise limit'}, 'attribution': {'type': 'object', 'description': 'credit line per source kind in the rows, to show with the data', 'additionalProperties': {'type': 'string'}}, 'unknown_imo': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested IMO numbers matching no vessel the network has heard'}, 'unknown_mmsi': {'type': ['null', 'array'], 'items': {'type': 'integer', 'maximum': 4294967295, 'minimum': 0}, 'description': 'requested MMSIs matching no vessel the network has heard'}}, 'additionalProperties': False}