Callsign:	WDM3133
MMSI number:	368194460
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	SEATTLE (ETA Jun16 20:00)
Location:	37°48.41' N 122°24.00' W - locator CM87TT23AP - show map 2.4 miles Northeast bearing 26° from San Francisco, San Francisco County, California, United States [?] 5.5 miles Southeast bearing 146° from Tiburon, Marin County, California, United States 5.7 miles Southeast bearing 142° from Belvedere, Marin County, California, United States 42.5 miles Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-20 09:28:19 EST (5d 18h59m ago) 2025-01-20 06:28:19 PST local time at San Francisco, United States [?]
Course:	358° – heading 252°
Speed:	1 MPH
Dimensions:	length 30 m width 11 m draught 3.5 m
Last path:	WDM3133>ais via SUNSET
Positions stored:	23710

callsign		distance	last heard - EST		callsign		distance	last heard - EST
FIREBOAT 3		172.6 yards 85°	2025-01-22 18:14:48		FW1520		0.5 miles 180°	2025-01-26 04:15:33
338921000		0.5 miles 23°	2025-01-09 18:45:22		FUME BLANC COMMODORE		0.6 miles 332°	2025-01-01 02:36:11
ENHYDRA		0.6 miles 343°	2025-01-19 21:34:06		Z FIVE		0.7 miles 98°	2025-01-25 10:23:22
367776410		0.8 miles 121°	2025-01-15 19:59:11		367338290		0.8 miles 320°	2025-01-25 21:32:54
367758990		0.9 miles 122°	2025-01-02 10:12:23		368169920		1.0 miles 278°	2025-01-25 08:06:31
EVER LIBERAL		1.1 miles 311°	2025-01-24 20:16:58		STAR THROWER		1.1 miles 292°	2025-01-16 17:57:27
T0WBOATUS_ALAMEDA		1.2 miles 299°	2025-01-25 14:36:42		SAUSALITOBMPRESS		1.2 miles 328°	2025-01-24 23:49:46
BAYCAT		1.2 miles 22°	2025-01-25 23:57:23		NX6E-9		1.2 miles 190°	2025-01-08 19:12:10
MA`S ROVER		1.2 miles 296°	2025-01-25 16:24:03		QUIVER		1.3 miles 338°	2025-01-25 16:42:22
OLD BLUE		1.3 miles 295°	2025-01-08 14:26:07		KD2LRL-9		1.3 miles 123°	2025-01-22 20:04:41

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.