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AIS vessel CALCIT 4 - show graphs
Callsign: PB4853
MMSI number: 244660690
IMO number: 520986
Navigational status: Under way (engine) (0)
Vessel class: (99)
Location: 53°02.67' N 5°46.09' E - locator JO23VB20EQ - show map
4.0 km Southwest bearing 204° from Jirnsum, Gemeente Boarnsterhim, Friesland, Netherlands [?]
7.5 km Southwest bearing 215° from Grou, Gemeente Boarnsterhim, Friesland, Netherlands
95.1 km Northeast bearing 38° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
146.4 km Northeast bearing 42° from Den Haag, Gemeente ’s-Gravenhage, South Holland, Netherlands
Last position: 2025-09-07 08:07:04 UTC (9d 1h46m ago)
2025-09-07 10:07:04 CEST local time at Jirnsum, Netherlands [?]
Course: 236° – heading 511°
Speed: 13 km/h
Dimensions: length 85 m width 10 m draught 0.0 m
Last path: PB4853>ais via pa2dx
Positions stored: 46471
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.
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