Callsign:	WDF4062
MMSI number:	367447520
IMO number:	678970
Navigational status:	Under way (engine) (0)
Vessel class:	High Speed Catamaran (40)
Destination:	BOSTON-PTOWN
Location:	42°22.89' N 71°02.86' W - locator FN42LJ41GN - show map 1.7 km Southwest bearing 227° from Chelsea, Suffolk County, Massachusetts, United States [?] 2.7 km North bearing 21° from Boston, Suffolk County, Massachusetts, United States 4.2 km Southwest bearing 224° from Revere, Suffolk County, Massachusetts, United States 5.3 km North bearing 2° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-02-19 17:40:34 UTC (9h6m ago) 2025-02-19 12:40:34 EST local time at Chelsea, United States [?]
Course:	105.400002° – heading 100°
Speed:	0 km/h
Dimensions:	length 39 m width 13 m draught 0.0 m
Last path:	WDF4062>ais via kx1t
Positions stored:	151038

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.