Callsign:	ZDGR4
MMSI number:	236271000
IMO number:	271999
Navigational status:	Under way (engine) (0)
Vessel class:	Tanker (89)
Destination:	BRSSZ (ETA Jan31 15:00)
Location:	23°46.19' S 43°23.39' W - locator GG86HF35FF - show map 98.1 km South bearing 191° from Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil [?] 102.8 km South bearing 196° from Niterói, Rio de Janeiro, Brazil 112.5 km South bearing 177° from Nova Iguaçu, Nova Iguaçu, Rio de Janeiro, Brazil
Last position:	2025-02-12 19:38:35 UTC (5d 21h18m ago) 2025-02-12 16:38:35 -03 local time at Rio de Janeiro, Brazil [?]
Course:	69° – heading 71°
Speed:	23 km/h
Dimensions:	length 164 m width 23 m draught 7.9 m
Last path:	ZDGR4>ais via ARAF-AIS
Positions stored:	9101

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.