Callsign:	WDI8553
MMSI number:	367739760
Vessel class:	Passenger (60)
Location:	42°20.56' N 71°01.59' W - locator FN42LI62TF - show map 2.1 km Northeast bearing 62° from South Boston, Suffolk County, Massachusetts, United States [?] 3.2 km Southeast bearing 123° from Boston, Suffolk County, Massachusetts, United States 7.4 km Southeast bearing 119° from Cambridge, Middlesex County, Massachusetts, United States 7.8 km Southeast bearing 130° from Somerville, Middlesex County, Massachusetts, United States
Last position:	2025-03-12 17:03:37 UTC (2d 1h20m ago) 2025-03-12 13:03:37 EDT local time at South Boston, United States [?]
Course:	271° – heading 511°
Speed:	14 km/h
Last path:	WDI8553>ais via kx1t
Positions stored:	12397

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.