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 POLAR ENDEAVOUR - show graphs
Callsign: WCAJ
MMSI number: 338371000
IMO number: 193551
Navigational status: Under way (engine) (0)
Vessel class: Tanker (89)
Destination: US SFO
Location: 37°34.09' N 123°12.54' W - locator CM87JN46WI - show map
38.0 miles West bearing 273° from Montara, San Mateo County, California, United States [?]
38.2 miles West bearing 274° from Moss Beach, San Mateo County, California, United States
45.5 miles West bearing 252° from San Francisco, San Francisco County, California, United States
73.7 miles West bearing 283° from San Jose, Santa Clara County, California, United States
Last position: 2025-01-30 16:24:29 EST (8d 7h8m ago)
2025-01-30 13:24:29 PST local time at Montara, United States [?]
Course: 291° – heading 292°
Speed: 19 MPH
Dimensions: length 273 m width 46 m draught 10.0 m
Last path: WCAJ>ais via SUNSET
Positions stored: 61895
Stations near current position of POLAR ENDEAVOUR - show more
callsign distance last heard - EST      callsign distance last heard - EST
WAN HAI A162.8 miles 192°2025-02-04 23:53:40 3686800002.9 miles 111°2025-02-06 10:36:38
WAN HAI A053.0 miles 160°2025-02-03 00:30:18 CMA CGM J.MADISON4.0 miles 204°2025-01-19 06:17:15
QUEEN ANNE4.8 miles 95°2025-02-05 00:12:21 MANULANI4.9 miles 102°2025-02-04 09:30:13
POLYNESIA5.0 miles 123°2025-02-05 09:50:38 NPDL CALIFORNIA5.1 miles 171°2025-01-15 10:13:01
GULF RELIANCE5.6 miles 120°2025-02-05 05:14:18 M V RCC EUROPE5.7 miles 92°2025-01-25 04:50:39
MSC LAUREN6.1 miles 96°2025-01-26 13:47:48 HAFNIA PRIDE6.1 miles 87°2025-01-13 06:32:18
CMA CGM T.JEFFERSON6.9 miles 88°2025-01-30 12:44:02 HAFNIA LYNX7.0 miles 95°2025-02-04 13:39:34
CAPE ANN7.2 miles 106°2025-01-31 22:04:14 WAN HAI 5127.2 miles 103°2025-02-01 23:02:11
NYK VENUS7.5 miles 89°2025-01-24 10:01:56 VISION8.3 miles 88°2025-02-06 19:02:10
FAIRCHEM HAWK8.4 miles 88°2025-02-07 17:18:33 KASHIMA MARU8.6 miles 86°2025-02-05 11:21:07
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