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 UNISON SPARK - show graphs
Map loading...
Callsign: VRLH4
MMSI number: 477203900
IMO number: 636357
Navigational status: Under way (engine) (0)
Vessel class: Cargo (70)
Destination: JP FNB OFF (ETA May08 16:20)
Location: 35°24.88' N 139°43.64' E - locator PM95UJ79GM - show map - static map
8.5 km Southeast bearing 116° from Yokohama-shi, Kanagawa, Japan [?]
11.8 km South bearing 176° from Kawasaki, Kanagawa, Japan
30.7 km South bearing 174° from Tokyo, Tōkyō, Japan
Last position: 2021-05-20 10:41:17 UTC (158d 2h1m ago)
2021-05-20 19:41:17 JST local time at Yokohama-shi, Japan [?]
Course: 235° – heading 232°
Speed: 21 km/h
Dimensions: length 171 m width 27 m draught 5.6 m
Last path: VRLH4>ais via JR1CAD-AIS
Positions stored: 388
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 · AIS sites · Service status · Database statistics · Advertising on · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS