Callsign:	WDI3412
MMSI number:	367688050
Vessel class:	Sailing (36)
Location:	37°49.29' N 122°28.70' W - locator CM87ST27OD - show map 3.7 miles Southeast bearing 153° from Marin City, Marin County, California, United States [?] 4.5 miles Northwest bearing 315° from San Francisco, San Francisco County, California, United States 5.0 miles Southeast bearing 141° from Tamalpais-Homestead Valley, Marin County, California, United States 46.1 miles Northwest bearing 316° from San Jose, Santa Clara County, California, United States
Last position:	2024-11-17 16:15:53 EST (49d 5h56m ago) 2024-11-17 13:15:53 PST local time at Marin City, United States [?]
Course:	273° – heading 511°
Speed:	6 MPH
Last path:	WDI3412>ais via SUNSET
Positions stored:	14

callsign		distance	last heard - EST		callsign		distance	last heard - EST
FARAH II		32.4 yards 34°	2025-01-05 18:26:46		AMOR AL MAR		54.1 yards 115°	2025-01-01 20:21:45
MAKIA		82.7 yards 242°	2024-12-30 17:50:53		BONNE JOURNEE		392.9 yards 341°	2025-01-01 18:04:09
MAYHEM		418.8 yards 6°	2024-12-30 13:56:07		PLUMERIA		515.0 yards 70°	2025-01-04 13:50:14
ASSATEAGUE		0.3 miles 151°	2025-01-03 19:57:39		JOHN B		0.3 miles 60°	2024-12-29 15:58:33
BASS TUB		0.3 miles 159°	2024-12-21 17:54:16		HARD ASSETS		0.4 miles 48°	2024-12-30 17:29:46
BLUE RUNNER		0.4 miles 304°	2025-01-05 17:49:42		CONSTELLATION		0.4 miles 21°	2024-12-28 19:50:43
ALCHERA		0.4 miles 195°	2024-12-15 17:10:16		SD-2001 (UNCREWED)		0.4 miles 146°	2025-01-02 12:56:54
338415833		0.4 miles 186°	2025-01-01 16:33:49		338384547		0.4 miles 138°	2025-01-02 12:57:11
S/V FREE SWAN 461		0.4 miles 195°	2024-12-10 19:03:35		338368994		0.4 miles 45°	2025-01-05 17:24:34
SHOOKSEAS		0.5 miles 42°	2024-12-31 18:18:33		SHARONDIPITY		0.5 miles 36°	2025-01-05 17:17:53

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.