Callsign:	PD4571
MMSI number:	244830124
IMO number:	138783
Navigational status:	Under way (engine) (0)
Vessel class:	Pleasure (37)
Location:	51°53.74' N 4°13.08' E - locator JO21CV64DX - show map 2.3 miles Southwest bearing 216° from Maassluis, Gemeente Maassluis, South Holland, Netherlands [?] 5.4 miles West bearing 258° from Vlaardingen, Gemeente Vlaardingen, South Holland, Netherlands 43.6 miles Southwest bearing 221° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 72.4 miles North bearing 356° from Brussels, (Bruxelles-Capitale), Brussels Capital Region, Belgium
Last position:	2024-05-20 21:32:54 EDT (2d 22h58m ago) 2024-05-21 03:32:54 CEST local time at Maassluis, Netherlands [?]
Course:	360°
Speed:	0 MPH
Dimensions:	length 12 m width 4 m draught 0.0 m
Last path:	PD4571>ais via GM7HHB
Positions stored:	276

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
SHADOW		4.5 yards 270°	2024-05-15 13:39:28		LEGACY		39.0 yards 270°	2024-05-19 09:56:08
SYMFONIE		51.1 yards 162°	2024-05-23 15:29:13		LARGO		72.9 yards 179°	2024-05-23 16:15:13
GT52		75.5 yards 345°	2024-05-21 10:21:41		LIBERTY		82.0 yards 153°	2024-05-23 16:59:11
DUTCH FLOWER		90.2 yards 199°	2024-05-23 16:17:13		DIRK II		324.5 yards 21°	2024-05-23 04:19:13
SECOND METRU		398.0 yards 204°	2024-05-20 05:37:40		LIBERTE		413.5 yards 182°	2024-05-08 06:51:13
SCHLOSS HEIDELBERG		416.4 yards 35°	2024-05-23 17:36:15		SCHOTSMAN		418.8 yards 38°	2024-05-23 14:03:10
RAMBONNET		458.5 yards 148°	2024-05-16 19:53:42		OOSTZEE		483.1 yards 74°	2024-05-21 23:46:01
RPA 7		499.5 yards 39°	2024-05-23 03:55:13		HARINGVLIET		517.0 yards 66°	2024-05-19 13:57:56
ALEWIJN DE GROOT		0.3 miles 154°	2024-05-22 14:07:36		NORMA		0.3 miles 36°	2024-05-22 19:44:12
MEZZOFORTE		0.3 miles 44°	2024-05-23 18:00:15		COMBINATION		0.3 miles 49°	2024-05-23 16:59:11

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.