Callsign:	PG4157
MMSI number:	244660230
Navigational status:	Moored (5)
Vessel class:	Dredging/underwater operations (33)
Destination:	URK (ETA Jun16 22:02)
Location:	52°25.17' N 5°07.95' E - locator JO22NK50VQ - show map - static map 3.0 miles Southeast bearing 155° from Marken, Gemeente Waterland, North Holland, Netherlands [?] 4.8 miles Southeast bearing 124° from Monnickendam, Gemeente Waterland, North Holland, Netherlands 10.7 miles East bearing 73° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 44.1 miles Northeast bearing 39° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands
Last position:	2021-07-20 23:10:35 EDT (11d 4h42m ago) 2021-07-21 05:10:35 CEST local time at Marken, Netherlands [?]
Course:	360° – heading 511°
Speed:	0 MPH
Dimensions:	length 76 m width 10 m draught 0.0 m
Last path:	PG4157>ais via GM7HHB
Positions stored:	32449

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
JOBBER		235.3 yards 338°	2021-07-06 05:20:32		POLLUX		339.9 yards 230°	2021-07-21 04:18:43
WATER LADY		410.6 yards 308°	2021-07-26 12:21:57		SHANTI		437.3 yards 224°	2021-07-23 11:17:00
GOTCHA2		463.9 yards 49°	2021-07-25 05:39:06		LIBERTANGO		479.6 yards 317°	2021-07-24 07:17:40
HURRICANE_SAR		499.8 yards 114°	2021-07-27 07:17:34		WHITE ROSE		0.3 miles 41°	2021-07-27 07:16:34
SPIRIT		0.4 miles 246°	2021-07-16 13:32:50		AMBER		0.4 miles 149°	2021-07-13 06:36:45
JACOB GZN		0.4 miles 147°	2021-07-15 07:12:42		SPERO INVIDIAM		0.4 miles 166°	2021-07-17 09:34:07
CELESTIAL		0.4 miles 41°	2021-07-27 05:16:27		EL NINO		0.4 miles 312°	2021-07-17 10:25:43
TINTIN		0.5 miles 258°	2021-07-24 07:08:40		STAVRIA		0.5 miles 185°	2021-07-31 00:29:32
HOLLAND 3		0.5 miles 289°	2021-07-29 13:08:11		TABEE		0.5 miles 299°	2021-07-10 05:49:39
KRANERWEERD		0.5 miles 98°	2021-07-24 10:12:45		GERRIT JAN		0.6 miles 195°	2021-07-28 03:31:08

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.