Callsign:	WDM9401
MMSI number:	368252310
Vessel class:	Sailing (36)
Location:	37°49.40' N 122°28.56' W - locator CM87ST27UO - show map 3.6 miles South bearing 197° from Tiburon, Marin County, California, United States [?] 4.6 miles Northwest bearing 317° from San Francisco, San Francisco County, California, United States 46.1 miles Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position:	2024-10-20 14:08:05 EDT (4d 17h20m ago) 2024-10-20 11:08:05 PDT local time at Tiburon, United States [?]
Course:	117° – heading 131°
Speed:	10 MPH
Last path:	WDM9401>ais via SUNSET
Positions stored:	159

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
MYKONOS		64.2 yards 22°	2024-10-19 17:20:06		ROXANNE		117.4 yards 7°	2024-09-29 15:54:25
FORTUNA		147.3 yards 313°	2024-10-12 18:42:27		CAT BALLOU		156.8 yards 358°	2024-10-04 16:16:39
WHISKEY 36		213.3 yards 13°	2024-10-13 01:38:07		MAYA JEAN		221.8 yards 4°	2024-10-11 19:56:12
SANTA FE		232.9 yards 102°	2024-10-06 15:18:45		LEISA FLORENCE		235.0 yards 39°	2024-10-25 07:23:49
GENTLE STORM II		238.4 yards 224°	2024-09-27 15:05:56		ALETA		244.8 yards 89°	2024-09-25 16:02:58
FELIX		246.7 yards 11°	2024-10-16 04:33:08		M		252.1 yards 214°	2024-10-21 15:51:31
367145450		270.3 yards 86°	2024-10-17 21:12:10		DIAMOND SEAS		289.1 yards 343°	2024-10-22 20:39:22
SAILOR DOG		331.1 yards 61°	2024-10-07 19:08:56		ALCHERA		343.3 yards 198°	2024-10-13 18:01:12
338452618		366.6 yards 159°	2024-10-05 17:34:57		MAYHEM		373.2 yards 11°	2024-10-14 13:51:03
338237125		384.8 yards 195°	2024-09-27 19:17:54		WINDANCER		396.0 yards 214°	2024-10-06 17:13:04

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.