Callsign:	WDF7733
MMSI number:	367487570
IMO number:	521851
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	MILWAUKEE 74
Location:	42°13.65' N 87°36.56' W - locator EN62EF64VO - show map 9.9 miles Northeast bearing 50° from Glencoe, Cook County, Illinois, United States [?] 10.5 miles Northeast bearing 38° from Winnetka, Cook County, Illinois, United States 26.1 miles North bearing 5° from Chicago, Cook County, Illinois, United States 58.0 miles South bearing 165° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-01-16 23:05:30 EST (18d 15h26m ago) 2025-01-16 22:05:30 CST local time at Glencoe, United States [?]
Course:	334° – heading 332°
Speed:	10 MPH
Dimensions:	length 164 m width 16 m draught 6.4 m
Last path:	WDF7733>ais via Snhnry
Positions stored:	52713

callsign		distance	last heard - EST		callsign		distance	last heard - EST
PAUL R TREGURTHA		3.2 miles 4°	2025-01-18 22:41:47		STEWART J CORT		3.6 miles 334°	2025-01-14 00:16:09
ANGLIAN LADY		5.6 miles 229°	2025-01-25 19:55:57		SPARTAN		7.3 miles 311°	2025-01-14 13:41:23
AMERICAN CENTURY		7.5 miles 359°	2025-01-10 10:21:00		KIMBERLY SELVICK		9.2 miles 190°	2025-01-07 16:51:51
WALTER J MCCARTHY		9.5 miles 11°	2025-01-08 04:40:51		GW0604		10.7 miles 272°	2025-02-04 14:31:04
FW1203		11.0 miles 219°	2025-02-04 14:26:52		003669193 US		11.1 miles 200°	2025-02-04 14:30:06
W9II-9		11.1 miles 154°	2025-01-10 17:49:53		NS9RC-5		11.2 miles 265°	2025-02-04 13:54:43
EW1558		11.5 miles 284°	2025-02-04 14:31:06		KD9IXA B		11.6 miles 206°	2025-01-25 15:39:11
KD9IXA-B		11.6 miles 206°	2025-01-25 15:39:21		KD9IXA-N		11.6 miles 206°	2025-01-24 22:35:06
EvanstonH		11.8 miles 199°	2025-02-04 11:24:38		147.345NS		11.8 miles 224°	2025-02-04 14:26:38
ew5858		11.9 miles 209°	2025-02-04 14:30:10		KK9H-7		12.0 miles 226°	2025-02-02 14:42:14

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.