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AIS vessel Z FOUR - show graphs
Callsign: WDE7715
MMSI number: 367396710
IMO number: 194165
Navigational status: Under way (engine) (0)
Vessel class: Tug (52)
Destination: HARBOR T (ETA Sep14 18:00)
Location: 37°47.77' N 122°19.33' W - locator CM87UT11IB - show map
8.9 km East bearing 75° from San Francisco, San Francisco County, California, United States [?]
14.5 km Northeast bearing 28° from Brisbane, San Mateo County, California, United States
63.2 km Northwest bearing 324° from San Jose, Santa Clara County, California, United States
Last position: 2025-11-06 13:33:16 UTC (2d 16h3m ago)
2025-11-06 05:33:16 PST local time at San Francisco, United States [?]
Course: 288° – heading 287°
Speed: 9 km/h
Dimensions: length 29 m width 10 m draught 4.0 m
Last path: WDE7715>ais via SUNSET
Positions stored: 55394
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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