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 DAVID H PETERSON - show graphs
Callsign: WDI5193
MMSI number: 367706070
Navigational status: Under way (engine) (0)
Vessel class: (0)
Destination: US RWC (ETA Aug22 13:00)
Location: 37°45.84' N 122°22.00' W - locator CM87TS53XI - show map
3.0 miles East bearing 105° from San Francisco, San Francisco County, California, United States [?]
9.2 miles Southeast bearing 135° from Sausalito, Marin County, California, United States
39.1 miles Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position: 2024-12-11 13:23:42 EST (25d 7h46m ago)
2024-12-11 10:23:42 PST local time at San Francisco, United States [?]
Course: 169° – heading 511°
Speed: 18 MPH
Dimensions: length 19 m width 7 m draught 1.4 m
Last path: WDI5193>ais via SUNSET
Positions stored: 1217
Stations near current position of DAVID H PETERSON - show more
callsign distance last heard - EST      callsign distance last heard - EST
LEISA FLORENCE267.6 yards 110°2025-01-05 18:45:33 SEASPAN BEYOND0.5 miles 11°2025-01-05 17:04:53
3389261240.6 miles 355°2024-12-10 13:44:42 3683757500.9 miles 273°2024-12-17 11:00:42
BLACKBIRD1.0 miles 180°2025-01-03 11:07:46 JAMIE RENEA1.0 miles 204°2025-01-05 21:06:01
3667530001.0 miles 92°2024-12-31 17:45:38 CALIFORNIAHORNBLOWER1.0 miles 328°2025-01-05 16:08:27
BETTY L1.1 miles 320°2024-12-31 17:59:28 3682127501.1 miles 315°2025-01-05 01:18:09
3668688501.1 miles 31°2025-01-03 19:24:36 3384390211.1 miles 272°2024-12-31 10:06:13
G POSEIDON1.1 miles 206°2025-01-05 20:58:21 3380010361.2 miles 143°2024-12-20 11:13:19
PERALTA1.2 miles 67°2025-01-04 21:24:37 CAPE SAN JUAN1.3 miles 210°2025-01-05 19:38:56
3681442901.3 miles 115°2024-12-25 01:23:34 CHINCOTEAGUE1.5 miles 37°2025-01-05 16:45:39
3669694801.5 miles 56°2025-01-04 04:45:13 3671792501.6 miles 119°2024-12-13 19:54:18
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