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 GEM TOPAZ - show graphs
Callsign: V7BC9
MMSI number: 538005117
IMO number: 9645762
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: SGSIN
Location: 1°14.71' N 104°00.16' E - locator OJ21AF08HT - show map
17.7 km East bearing 106° from Singapore, Singapore [?]
28.8 km Southeast bearing 151° from Kampung Pasir Gudang Baru, Johor, Malaysia
36.6 km Southeast bearing 132° from Johor Bahru, Johor, Malaysia
Last position: 2026-01-26 08:37:51 UTC (2d 8h34m ago)
2026-01-26 16:37:51 +08 local time at Singapore, Singapore [?]
Course: 89° – heading 88°
Speed: 12 km/h
Dimensions: length 183 m width 32 m draught 8.2 m
Last path: V7BC9>ais via 9V1AK
Positions stored: 28434
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