Callsign:	338158711
MMSI number:	338158711
Navigational status:	Undefined/default (15)
Location:	37°48.73' N 122°27.84' W - locator CM87ST44HV - show map 3.5 miles Northwest bearing 317° from San Francisco, San Francisco County, California, United States [?] 4.2 miles South bearing 180° from Belvedere, Marin County, California, United States 4.3 miles South bearing 185° from Tiburon, Marin County, California, United States 45.1 miles Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-28 21:12:57 EST (1d 19h37m ago) 2025-01-28 18:12:57 PST local time at San Francisco, United States [?]
Course:	115° – heading 511°
Speed:	16 MPH
Last path:	338158711>ais via SUNSET
Positions stored:	3

callsign		distance	last heard - EST		callsign		distance	last heard - EST
ION		218.1 yards 136°	2025-01-13 18:03:27		367389640		430.2 yards 0°	2025-01-26 20:06:03
WIND CATCHER		466.9 yards 66°	2025-01-25 14:23:15		CG TERN --------		0.3 miles 350°	2025-01-16 19:23:30
JUBILANT		0.3 miles 63°	2025-01-25 14:23:44		SHAMAN		0.4 miles 61°	2025-01-25 20:53:54
NANCY		0.4 miles 337°	2025-01-25 14:11:37		SEQUOIA		0.4 miles 356°	2025-01-22 16:24:24
338349184		0.4 miles 325°	2025-01-23 16:00:31		366884810		0.5 miles 21°	2025-01-18 22:58:18
PILOT BOAT SAN FRAN		0.6 miles 329°	2025-01-30 11:54:57		BREATHE		0.6 miles 298°	2025-01-14 15:29:59
PLUMERIA		0.6 miles 78°	2025-01-30 16:26:05		SD-2001 (UNCREWED)		0.6 miles 300°	2025-01-02 12:56:54
SAN FRANCISCO BELLE		0.7 miles 63°	2025-01-01 02:28:13		FREEDOM		0.7 miles 302°	2025-01-25 13:59:48
DUENDE		0.7 miles 87°	2025-01-25 12:32:54		S/V FREE SWAN 461		0.8 miles 311°	2025-01-11 19:51:53
BRAVO		0.8 miles 312°	2025-01-25 13:49:05		338384547		0.8 miles 61°	2025-01-13 16:43:17

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.