Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel UNION TOPAZ - show graphs
Callsign: 5BSF3
MMSI number: 212165000
IMO number: 406427
Navigational status: Under way (engine) (0)
Vessel class: Tug (52)
Destination: DEMUK MUKRAN
Location: 54°29.55' N 13°40.88' E - locator JO64UL18SF - show map
3.4 km Southeast bearing 143° from Saßnitz (Sassnitz), Mecklenburg-Vorpommern, Germany [?]
10.9 km South bearing 158° from Lohme, Mecklenburg-Vorpommern, Germany
106.4 km North bearing 15° from Neubrandenburg, Mecklenburg-Vorpommern, Germany
109.5 km Northeast bearing 65° from Rostock, Mecklenburg-Vorpommern, Germany
Last position: 2025-07-21 14:35:35 UTC (7d 10h18m ago)
2025-07-21 16:35:35 CEST local time at Saßnitz, Germany [?]
Course: 56° – heading 57°
Speed: 12 km/h
Dimensions: length 33 m width 12 m draught 5.2 m
Last path: 5BSF3>ais via AIS-KNA
Positions stored: 54745
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS