Callsign:	PD4221
MMSI number:	244780171
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	TERSCHELLING
Location:	53°10.75' N 5°23.29' E - locator JO23QE62NX - show map 1.5 miles West bearing 282° from Harlingen, Gemeente Harlingen, Friesland, Netherlands [?] 4.8 miles Southwest bearing 236° from Sexbierum, Gemeente Franekeradeel, Friesland, Netherlands 48.8 miles West bearing 267° from Groningen, Gemeente Groningen, Groningen, Netherlands 59.4 miles North bearing 20° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position:	2024-05-30 00:29:44 EDT (4d 11m ago) 2024-05-30 06:29:44 CEST local time at Harlingen, Netherlands [?]
Course:	290° – heading 511°
Speed:	8 MPH
Dimensions:	length 53 m width 8 m draught 0.1 m
Last path:	PD4221>ais via pa2dx
Positions stored:	9333

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
HENK SENIOR		112.8 yards 101°	2024-05-26 19:24:54		MARLIN NL		279.2 yards 124°	2024-05-30 09:17:07
TERSCHELLINGER BANK		386.4 yards 113°	2024-05-31 06:11:34		244620286		398.7 yards 106°	2024-05-12 06:19:53
ANAK MAS		431.8 yards 120°	2024-05-06 03:07:08		Z19 BRIGITTE		437.2 yards 111°	2024-05-13 09:53:37
PURA VIDA		0.3 miles 114°	2024-05-25 05:22:00		MARGAUX		0.3 miles 128°	2024-05-18 02:08:13
244010851 NL		0.4 miles 280°	2024-05-30 07:30:37		244170086		0.4 miles 114°	2024-05-11 06:25:25
KNRM-GR. VAN BYLANDT		0.4 miles 108°	2024-05-31 07:51:32		FEUERLAND		0.4 miles 106°	2024-05-28 06:55:50
UK205 SPES NOVA		0.4 miles 104°	2024-05-18 01:26:04		NEELTJE		0.4 miles 104°	2024-06-02 19:21:06
DELLEWAL		0.5 miles 281°	2024-06-02 03:20:23		SANSTOARM		0.5 miles 103°	2024-05-29 23:12:58
WATERWOLF		0.5 miles 278°	2024-05-30 05:17:23		MEILOU		0.5 miles 113°	2024-05-30 12:32:36
244090063		0.6 miles 107°	2024-05-12 07:16:38		YE-30 OOSTERSCHELDE		0.6 miles 106°	2024-06-03 00:38:20

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.