Callsign:
MMSI number:	338023819
Navigational status:	Undefined/default (15)
Vessel class:	Law enforcement (55)
Location:	42°22.07' N 71°03.63' W - locator FN42LI28RH - show map 1.1 km North bearing 356° from Boston, Suffolk County, Massachusetts, United States [?] 3.5 km Southwest bearing 221° from Chelsea, Suffolk County, Massachusetts, United States 3.9 km North bearing 347° from South Boston, Suffolk County, Massachusetts, United States 6.0 km Southwest bearing 222° from Revere, Suffolk County, Massachusetts, United States
Last position:	2025-02-18 17:33:50 UTC (1d 8h50m ago) 2025-02-18 12:33:50 EST local time at Boston, United States [?]
Course:	309° – heading 511°
Speed:	1 km/h
Dimensions:	length 10 m width 4 m draught 0.0 m
Last path:	>ais via kx1t
Positions stored:	4380

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.