Callsign:	WDP4334
MMSI number:	368353440
Vessel class:	Sailing (36)
Location:	37°52.45' N 122°22.55' W - locator CM87TU49VT - show map 4.4 miles East bearing 89° from Tiburon, Marin County, California, United States [?] 4.5 miles South bearing 200° from Richmond, Contra Costa County, California, United States 7.3 miles North bearing 19° from San Francisco, San Francisco County, California, United States 45.3 miles Northwest bearing 325° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-08 17:04:34 EST (7h50m ago) 2025-01-08 14:04:34 PST local time at Tiburon, United States [?]
Course:	93.400001525879° – heading 511°
Speed:	7 MPH
Last path:	WDP4334>ais via SUNSET
Positions stored:	141

callsign		distance	last heard - EST		callsign		distance	last heard - EST
QUIVER		503.5 yards 236°	2024-12-15 15:52:41		AHI		0.5 miles 169°	2025-01-04 13:20:19
SV MOON DANCE		0.6 miles 123°	2025-01-06 17:16:50		SAN JOAQUIN RIVER		0.9 miles 219°	2025-01-04 13:04:54
367748980		1.0 miles 259°	2024-12-31 19:51:38		SAGITTARIAN		1.1 miles 216°	2025-01-08 18:28:30
368212750		1.1 miles 262°	2025-01-08 22:41:55		BAYCAT		1.1 miles 289°	2025-01-08 20:19:15
367373280		1.3 miles 217°	2024-12-31 00:43:38		RACHAEL ALLEN		1.3 miles 229°	2025-01-08 18:12:44
338167484		1.4 miles 213°	2024-12-12 12:58:15		WILDCARD		1.4 miles 259°	2025-01-04 19:20:25
368053340		1.5 miles 179°	2024-12-28 12:38:54		MARE ISLAND		1.6 miles 263°	2025-01-06 19:47:22
NAPA		1.8 miles 246°	2025-01-03 16:30:26		VELA		1.9 miles 218°	2025-01-08 22:56:30
GRACE		2.0 miles 143°	2025-01-01 04:00:26		COLLETTE C		2.1 miles 178°	2025-01-07 06:36:58
BLACKBIRD		2.1 miles 182°	2025-01-08 21:45:19		TERRI L.BRUSCO		2.2 miles 19°	2025-01-08 14:54:25

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.