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AIS vessel CAPT JOHN SON IV - show graphs
Callsign: WDI9372
MMSI number: 367747980
Navigational status: Undefined/default (15)
Vessel class: Passenger (60)
Destination: (ETA ***00 24:60)
Location: 41°57.71' N 70°39.26' W - locator FN41QX10LU - show map
1.1 km East bearing 71° from Plymouth, Plymouth County, Massachusetts, United States [?]
2.6 km Southeast bearing 113° from North Plymouth, Plymouth County, Massachusetts, United States
52.6 km Southeast bearing 142° from South Boston, Suffolk County, Massachusetts, United States
55.3 km Southeast bearing 143° from Boston, Suffolk County, Massachusetts, United States
Last position: 2025-07-01 21:59:42 UTC (13h42m ago)
2025-07-01 17:59:42 EDT local time at Plymouth, United States [?]
Course: 243.2°
Speed: 12 km/h
Dimensions: length 30 m width 7 m draught 0.0 m
Last path: WDI9372>ais via K1XP
Positions stored: 37532
About this site
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.
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