Callsign:	NTHD
MMSI number:	968926291
Navigational status:	Under way (engine) (0)
Vessel class:	Military operations (35)
Destination:	UNKNOWN
Location:	42°20.49' N 70°42.57' W - locator FN42PI41UX - show map 19.6 km Southeast bearing 119° from Nahant, Essex County, Massachusetts, United States [?] 21.4 km Southeast bearing 145° from Marblehead, Essex County, Massachusetts, United States 27.9 km East bearing 88° from South Boston, Suffolk County, Massachusetts, United States 28.8 km East bearing 94° from Boston, Suffolk County, Massachusetts, United States
Last position:	2025-03-18 15:34:17 UTC (1d 8h23m ago) 2025-03-18 11:34:17 EDT local time at Nahant, United States [?]
Course:	115° – heading 511°
Speed:	30 km/h
Dimensions:	length 5 m draught 0.0 m
Last path:	NTHD>ais via kx1t
Positions stored:	1793

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.