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 PERSEUS - show graphs
Callsign: YLRO
MMSI number: 275524000
IMO number: 9129469
Navigational status: Under way (engine) (0)
Vessel class: Cargo (70)
Destination: RULED
Location: 52°52.91' N 4°16.33' E - locator JO22DV21QO - show map
33.8 km West bearing 255° from Den Helder, Gemeente Den Helder, North Holland, Netherlands [?]
36.9 km West bearing 287° from Schagen, Gemeente Schagen, North Holland, Netherlands
70.1 km Northwest bearing 324° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
107.5 km North bearing 353° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands
Last position: 2025-03-05 23:39:14 UTC (2m31s ago)
2025-03-06 00:39:14 CET local time at Den Helder, Netherlands [?]
Course: 25.1° – heading 24°
Speed: 23 km/h
Dimensions: length 133 m width 19 m draught 7.1 m
Last path: YLRO>ais via pa2dx
Positions stored: 104298
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