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 ST JOHN II - show graphs
Callsign: WDM9878
MMSI number: 368256750
Navigational status: Moored (5)
Vessel class: Fishing (30)
Destination: KETCHIKAN AK
Location: 48°06.32' N 122°46.64' W - locator CN88OC65RG - show map
1.8 km Southwest bearing 224° from Port Townsend, Jefferson County, Washington, United States [?]
8.1 km North bearing 4° from Port Hadlock-Irondale, Jefferson County, Washington, United States
64.6 km Northwest bearing 329° from Seattle, King County, Washington, United States
111.3 km South bearing 178° from Surrey, British Columbia, Canada
Last position: 2025-12-02 20:24:03 UTC (4d 9h4m ago)
2025-12-02 12:24:03 PST local time at Port Townsend, United States [?]
Course: 271° – heading 283°
Speed: 2 km/h
Dimensions: length 18 m width 6 m draught 2.5 m
Last path: WDM9878>ais via VE7KA
Positions stored: 7741
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