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 JOSEPHINE K MILLER - show graphs
Callsign: WDF9573
MMSI number: 367506560
IMO number: 568835
Navigational status: Under way (engine) (0)
Vessel class: Cargo (70)
Destination: SRW_WIND (ETA Aug14 18:30)
Location: 41°02.16' N 71°04.92' W - locator FN41LA08DP - show map
51.3 km Southwest bearing 222° from West Tisbury, Dukes County, Massachusetts, United States [?]
54.0 km Southeast bearing 144° from Narragansett Pier, Washington County, Rhode Island, United States
67.8 km South bearing 191° from New Bedford, Bristol County, Massachusetts, United States
91.8 km South bearing 162° from Providence, Providence County, Rhode Island, United States
Last position: 2025-08-16 23:24:31 UTC (1m1s ago)
2025-08-16 19:24:31 EDT local time at West Tisbury, United States [?]
Course: 020.9° – heading 61°
Speed: 1 km/h
Dimensions: length 50 m width 11 m draught 0.0 m
Last path: WDF9573>ais via K1XP
Positions stored: 11934
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