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 ROBERTA C - show graphs
Callsign: WDK5754
MMSI number: 367054980
Navigational status: Under way (engine) (0)
Vessel class: Fishing (30)
Location: 41°56.56' N 70°22.11' W - locator FN41TW56SF - show map
20.3 km Southwest bearing 231° from Provincetown, Barnstable County, Massachusetts, United States [?]
24.8 km East bearing 94° from Plymouth, Plymouth County, Massachusetts, United States
71.0 km Southeast bearing 128° from South Boston, Suffolk County, Massachusetts, United States
73.3 km Southeast bearing 129° from Boston, Suffolk County, Massachusetts, United States
Last position: 2025-03-10 02:00:36 UTC (3d 22h42m ago)
2025-03-09 22:00:36 EDT local time at Provincetown, United States [?]
Course: 18°
Speed: 17 km/h
Dimensions: length 28 m width 8 m draught 0.0 m
Last path: WDK5754>ais via K1XP
Positions stored: 9148
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