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 ARGO - show graphs
Callsign: SVDM4
MMSI number: 241798000
IMO number: 523366
Navigational status: Under way (engine) (0)
Vessel class: Cargo (79)
Destination: CHPE WORKSITE U.S
Location: 40°40.60' N 74°07.94' W - locator FN20WQ42CJ - show map
6.8 km East bearing 78° from Elizabeth, Union County, New Jersey, United States [?]
8.1 km Northeast bearing 28° from Bloomfield, Richmond County, New York, United States
11.4 km West bearing 249° from New York City, New York, United States
15.7 km West bearing 281° from Brooklyn, Kings County, New York, United States
Last position: 2025-10-16 15:18:27 UTC (21h51m ago)
2025-10-16 11:18:27 EDT local time at Elizabeth, United States [?]
Course: 17° – heading 18°
Speed: 10 km/h
Dimensions: length 110 m width 20 m draught 6.6 m
Last path: SVDM4>ais via KD2IBE
Positions stored: 11040
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