Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel WILLOW - show graphs
Map loading...
Callsign: 338037871
MMSI number: 338037871
Vessel class: Sailing (36)
Location: 37°51.63' N 122°27.50' W - locator CM87SU46XM - show map - static map
0.9 miles South bearing 159° from Belvedere, Marin County, California, United States [?]
0.9 miles South bearing 186° from Tiburon, Marin County, California, United States
6.3 miles North bearing 340° from San Francisco, San Francisco County, California, United States
47.4 miles Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position: 2021-04-14 17:44:15 EDT (4h19m ago)
2021-04-14 14:44:15 PDT local time at Belvedere, United States [?]
Course: 247.5° – heading 511°
Speed: 8 MPH
Last path: 338037871>ais via SUNSET
Positions stored: 240
Stations near current position of WILLOW - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
SEA SUITE93.3 yards 125°2021-04-11 15:56:02 SCRENADE122.4 yards 67°2021-04-03 16:04:54
FINESSE153.8 yards 109°2021-04-10 19:40:55 S/V SELENE314.1 yards 59°2021-03-30 17:34:29
DULCINEA439.1 yards 221°2021-03-21 19:17:42 3386910000.4 miles 238°2021-04-14 15:27:06
S/V RAPID0.4 miles 201°2021-03-29 12:44:17 APOGEE0.5 miles 184°2021-04-09 22:48:28
3673697200.5 miles 58°2021-04-13 03:41:51 TRUE BLUE0.5 miles 194°2021-04-10 17:45:15
KAHOOTS0.6 miles 74°2021-03-20 17:15:23 SYDNEY MARIE0.6 miles 184°2021-04-14 11:02:55
PAPILLON0.6 miles 215°2021-04-11 20:20:49 BAY MONARCH0.8 miles 18°2021-04-11 19:48:18
ANGEL ISLAND0.8 miles 18°2021-04-11 19:32:50 3669757400.8 miles 194°2021-03-24 10:13:28
WINE N DOWN0.8 miles 14°2021-04-11 17:39:54 ILARIA0.9 miles 200°2021-04-02 19:46:44
AYDA1.1 miles 200°2021-04-04 17:46:54 DEL NORTE1.1 miles 42°2021-04-14 21:36:45
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS