Callsign:
MMSI number:	338023195
Navigational status:	Undefined/default (15)
Vessel class:	Law enforcement (55)
Location:	42°22.89' N 71°03.31' W - locator FN42LJ31JN - show map 1.3 miles Southwest bearing 238° from Chelsea, Suffolk County, Massachusetts, United States [?] 1.6 miles North bearing 8° from Boston, Suffolk County, Massachusetts, United States 3.3 miles North bearing 355° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-01-17 10:05:01 EST (21d 13h58m ago) 2025-01-17 10:05:01 EST local time at Chelsea, United States [?]
Course:	40° – heading 511°
Speed:	6 MPH
Dimensions:	length 9 m width 3 m draught 0.0 m
Last path:	>ais via kx1t
Positions stored:	634

callsign		distance	last heard - EST		callsign		distance	last heard - EST
MASS STATE POLICE 15		179.4 yards 251°	2025-02-05 11:06:23		ENCORE I		528.0 yards 78°	2025-02-03 09:32:11
ROOKIE		0.3 miles 91°	2025-02-03 13:59:06		PIER PRESSURE		0.4 miles 41°	2025-01-15 14:20:49
MASS_STATE_POLICE_42		0.4 miles 322°	2025-01-23 03:42:05		SCHOODIC EXPLORER		0.6 miles 134°	2025-01-30 09:28:16
TUG BRAHMA		0.6 miles 124°	2025-02-04 06:46:43		AVA PEARL		0.6 miles 137°	2025-01-27 08:46:06
TOWLINE		0.6 miles 5°	2025-02-08 00:02:35		MERIDIAN		0.6 miles 6°	2025-02-07 16:18:30
TUG VIRGINIA		0.6 miles 8°	2025-01-11 13:24:44		KC1PWO-7		0.6 miles 26°	2025-02-01 20:54:21
AUSTIN REINAUER		0.6 miles 98°	2025-02-04 11:01:02		JUSTICE		0.6 miles 98°	2025-02-08 00:02:04
USS CONSTITUTION		0.6 miles 185°	2025-02-07 22:43:00		LIBERTY		0.6 miles 100°	2025-02-08 00:02:35
BULK HONDURAS		0.6 miles 319°	2025-02-08 00:02:04		FREEDOM		0.7 miles 99°	2025-02-08 00:02:35
VINCENT D. TIBBETTS		0.7 miles 97°	2025-02-08 00:02:04		ZACHERY REINAUER		0.7 miles 100°	2025-02-08 00:02:04

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.