Callsign:	WDH4157
MMSI number:	367614750
Navigational status:	Under way (engine) (0)
Vessel class:	(90)
Location:	41°35.77' N 70°18.89' W - locator FN41UO23FC - show map 4.0 miles Southeast bearing 155° from Centerville, Barnstable County, Massachusetts, United States [?] 4.2 miles Southwest bearing 203° from Hyannis, Barnstable County, Massachusetts, United States 63.3 miles Southeast bearing 143° from South Boston, Suffolk County, Massachusetts, United States 65.0 miles Southeast bearing 144° from Boston, Suffolk County, Massachusetts, United States
Last position:	2024-05-20 18:08:52 EDT (25d 21h52m ago) 2024-05-20 18:08:52 EDT local time at Centerville, United States [?]
Course:	55°
Speed:	17 MPH
Dimensions:	length 23 m width 6 m draught 0.0 m
Last path:	WDH4157>ais via K1XP
Positions stored:	214

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
TOWBOATUS BASSRIVER		0.5 miles 314°	2024-05-21 22:00:44		HELEN H		0.7 miles 45°	2024-05-30 19:23:23
GAY-HEAD		1.3 miles 61°	2024-06-15 11:10:22		SOY AMADA		1.6 miles 253°	2024-06-15 11:40:26
GREY LADY IV		2.2 miles 123°	2024-06-15 13:11:39		R V SOUTH COVE		2.3 miles 331°	2024-05-24 07:51:46
IYANOUGH		2.4 miles 132°	2024-06-15 14:23:49		KATAMA		4.3 miles 141°	2024-05-24 06:06:32
SHADOW		4.4 miles 229°	2024-06-10 14:45:11		BLUESTAR		4.5 miles 291°	2024-06-15 10:51:19
QUALITY TIME		4.5 miles 295°	2024-05-24 15:22:49		SEA SEA H2O		4.6 miles 296°	2024-05-20 11:30:56
LEGA-SEA		4.6 miles 254°	2024-06-13 11:32:47		ASTRAEA		4.6 miles 296°	2024-06-11 09:25:47
PATRIARCH		4.6 miles 293°	2024-06-10 07:06:06		368149060 US		4.6 miles 296°	2024-06-08 14:57:40
ELYSIUM		4.6 miles 296°	2024-06-13 10:56:40		S-CAPE		4.6 miles 297°	2024-06-15 12:14:31
SOLEMATES		4.8 miles 229°	2024-06-02 08:29:44		W5IPA-5		4.8 miles 13°	2024-06-10 20:04:01

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.