Callsign:	WDG5937
MMSI number:	367551860
IMO number:	885573
Navigational status:	Constrained by draught (4)
Vessel class:	(99)
Location:	42°21.06' N 71°02.24' W - locator FN42LI54MG - show map 2.0 km Southeast bearing 114° from Boston, Suffolk County, Massachusetts, United States [?] 2.2 km Northeast bearing 27° from South Boston, Suffolk County, Massachusetts, United States 6.2 km Southeast bearing 115° from Cambridge, Middlesex County, Massachusetts, United States
Last position:	2025-03-21 20:30:17 UTC (32s ago) 2025-03-21 16:30:17 EDT local time at Boston, United States [?]
Course:	360° – heading 511°
Speed:	0 km/h
Dimensions:	length 19 m width 5 m draught 0.0 m
Last path:	WDG5937>ais via kx1t
Positions stored:	43958

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.