Callsign:	WDM6874
MMSI number:	367396670
IMO number:	194153
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	37°51.62' N 122°23.58' W - locator CM87TU26UL - show map 3.6 miles East bearing 105° from Tiburon, Marin County, California, United States [?] 4.0 miles East bearing 102° from Belvedere, Marin County, California, United States 6.1 miles North bearing 14° from San Francisco, San Francisco County, California, United States 45.1 miles Northwest bearing 323° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-29 16:30:17 EST (3d 5h39m ago) 2025-01-29 13:30:17 PST local time at Tiburon, United States [?]
Course:	322° – heading 511°
Speed:	14 MPH
Dimensions:	length 29 m width 10 m draught 0.0 m
Last path:	WDM6874>ais via SUNSET
Positions stored:	42544

callsign		distance	last heard - EST		callsign		distance	last heard - EST
SOLANA		212.9 yards 292°	2025-02-01 21:13:15		SAGITTARIAN		331.1 yards 37°	2025-01-30 08:09:02
PISCES		0.3 miles 134°	2025-02-01 22:05:00		367389840		0.3 miles 257°	2025-01-27 19:01:21
BAY MONARCH		0.8 miles 220°	2025-01-31 11:45:37		SYMPHONY		0.8 miles 20°	2025-01-25 13:46:13
367085940		0.9 miles 209°	2025-01-26 15:53:38		INTINTOLI		0.9 miles 181°	2025-01-29 22:55:34
SAKURA HARMONY		1.0 miles 254°	2025-01-31 07:58:02		STEADFAST		1.0 miles 330°	2025-01-11 14:15:15
CARINA		1.0 miles 225°	2025-01-26 18:15:18		ASSATEAGUE		1.0 miles 215°	2025-01-31 16:22:29
COMMITMENT		1.2 miles 245°	2025-02-01 19:32:53		368180460		1.3 miles 239°	2025-02-01 19:32:29
IRISH ROSE		1.4 miles 234°	2025-01-25 17:20:26		EMPRESS HORNBLOWER		1.4 miles 133°	2025-01-22 22:39:01
338163019		1.5 miles 237°	2025-01-30 13:07:14		COLLETTE C		1.5 miles 141°	2025-01-23 14:08:52
PELIKAN		1.6 miles 215°	2025-01-18 18:08:34		JAMIE RENEA		1.7 miles 143°	2025-02-01 09:11:06

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.