Callsign:	ES4151
MMSI number:	276015440
Navigational status:	Under way (engine) (0)
Vessel class:	Anti-pollution (54)
Destination:	SEA ROAD
Location:	59°27.75' N 24°42.81' E - locator KO29IL50OX - show map 3.6 km Northwest bearing 321° from Tallinn, Tallinna linn, Harjumaa, Estonia [?] 8.2 km Southwest bearing 242° from Viimsi, Viimsi vald, Harjumaa, Estonia 79.5 km South bearing 189° from Helsinki, Nyland, Southern Finland, Finland
Last position:	2025-12-18 14:00:37 UTC (8d 18h9m ago) 2025-12-18 16:00:37 EET local time at Tallinn, Estonia [?]
Course:	303° – heading 511°
Speed:	1 km/h
Dimensions:	length 24 m width 6 m draught 2.2 m
Last path:	ES4151>ais via OH2AAV
Positions stored:	6850

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.