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 Z FIVE - show graphs
Map loading...
Callsign: WDE7721
MMSI number: 367396790
IMO number: 194177
Navigational status: Moored (5)
Vessel class: Tug (52)
Destination: SF BAY SHIP ASSIST (ETA ***00 00:00)
Location: 37°51.51' N 122°23.56' W - locator CM87TU26VB - show map - static map
5.0 miles East bearing 90° from Sausalito, Marin County, California, United States [?]
6.0 miles North bearing 14° from San Francisco, San Francisco County, California, United States
45.0 miles Northwest bearing 323° from San Jose, Santa Clara County, California, United States
Last position: 2021-04-20 09:49:39 EDT (1d 10h1m ago)
2021-04-20 06:49:39 PDT local time at Sausalito, United States [?]
Course: 150° – heading 147°
Speed: 6 MPH
Dimensions: length 29 m width 10 m draught 4.0 m
Last path: WDE7721>ais via SUNSET
Positions stored: 60699
Stations near current position of Z FIVE - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KESTREL233.0 yards 63°2021-04-19 15:19:31 PERALTA0.5 miles 164°2021-04-21 12:12:45
SCORPIO0.7 miles 182°2021-04-19 12:14:30 3681804600.7 miles 243°2021-04-15 23:18:12
MARE ISLAND0.9 miles 295°2021-04-20 20:26:57 HORNBLOWER HYBRID0.9 miles 330°2021-03-24 15:16:28
LYRA0.9 miles 234°2021-04-16 21:36:00 SONJA H1.0 miles 265°2021-04-09 11:05:57
HONG KONG SPIRIT1.0 miles 273°2021-04-12 13:10:36 SOUND RELIANCE1.0 miles 275°2021-04-17 18:35:09
DAVID H PETERSON1.0 miles 197°2021-04-20 15:20:21 NAPA1.0 miles 197°2021-04-16 15:38:06
MILLENNIUM DAWN1.0 miles 331°2021-04-20 20:07:36 CG_POLAR_STAR1.0 miles 268°2021-03-25 11:03:59
SPRING BREEZE1.1 miles 270°2021-04-18 14:41:17 TORM TIMOTHY1.1 miles 286°2021-04-20 15:58:35
3386910001.1 miles 296°2021-04-21 16:41:01 CORPUS CHRISTI1.1 miles 226°2021-04-21 14:21:16
CS CANDY1.3 miles 234°2021-04-13 18:48:57 3681442901.3 miles 137°2021-04-20 10:21:10
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