Callsign:	SFC4639
MMSI number:	265627260
Navigational status:	Under way (engine) (0)
Vessel class:	Sailing (36)
Location:	59°18.67' N 17°57.96' E - locator JO89XH54VQ - show map 3.5 km Southeast bearing 155° from Bromma, Stockholms Kommun, Stockholm, Sweden [?] 5.6 km South bearing 183° from Sundbyberg, Sundbybergs Kommun, Stockholm, Sweden 6.1 km Southwest bearing 247° from Stockholm, Stockholms Kommun, Stockholm, Sweden 63.4 km South bearing 163° from Uppsala, Uppsala Kommun, Uppsala, Sweden
Last position:	2025-10-03 12:53:00 UTC (48d 17h42m ago) 2025-10-03 14:53:00 CEST local time at Bromma, Sweden [?]
Course:	243° – heading 511°
Speed:	9 km/h
Dimensions:	length 11 m width 3 m draught 0.0 m
Last path:	SFC4639>ais via JohnexTower
Positions stored:	786

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.