Callsign:	ESRN
MMSI number:	276809000
IMO number:	7330337
Navigational status:	Moored (5)
Vessel class:	Tug (52)
Destination:	EEMUG
Location:	59°29.78' N 24°56.63' E - locator KO29LL39GD - show map 4.6 km East bearing 96° from Viimsi, Viimsi vald, Harjumaa, Estonia [?] 5.1 km Northwest bearing 296° from Maardu, Maardu linn, Harjumaa, Estonia 12.6 km Northeast bearing 58° from Tallinn, Tallinna linn, Harjumaa, Estonia 74.8 km South bearing 180° from Helsinki, Nyland, Southern Finland, Finland
Last position:	2026-01-21 11:15:00 UTC (8h42m ago) 2026-01-21 13:15:00 EET local time at Viimsi, Estonia [?]
Course:	357° – heading 351°
Speed:	15 km/h
Dimensions:	length 33 m width 10 m draught 5.0 m
Persons on board:	7 (2024-09-12 21:08:25 UTC – 495d 22h49m ago)
Last path:	ESRN>ais via OH2AAV
Positions stored:	77293

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.