Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel GROTE STERN - show graphs
Callsign: PD4588
MMSI number: 244050969
IMO number: 235000
Navigational status: Moored (5)
Vessel class: (99)
Destination: (ETA ***00 24:60)
Location: 51°51.98' N 4°18.86' E - locator JO21DU77RW - show map
1.6 miles Northwest bearing 337° from Spijkenisse, Gemeente Spijkenisse, South Holland, Netherlands [?]
3.4 miles South bearing 200° from Vlaardingen, Gemeente Vlaardingen, South Holland, Netherlands
42.7 miles Southwest bearing 215° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
70.2 miles North bearing 359° from Brussels, (Bruxelles-Capitale), Brussels Capital Region, Belgium
Last position: 2025-01-07 07:34:32 EST (11d 15h20m ago)
2025-01-07 13:34:32 CET local time at Spijkenisse, Netherlands [?]
Course: 269° – heading 511°
Speed: 12 MPH
Dimensions: length 19 m width 5 m draught 0.0 m
Last path: PD4588>ais via S.I.T.T.
Positions stored: 7847
Stations near current position of GROTE STERN - show more
callsign distance last heard - EST      callsign distance last heard - EST
DOMINO145.8 yards 97°2025-01-06 04:13:59 ALBATROS190.1 yards 84°2025-01-07 08:08:45
AMBRO206.7 yards 246°2025-01-06 06:06:15 ATLANTIC PRESTIGE292.3 yards 250°2025-01-07 05:29:23
KAMALIJ296.1 yards 68°2025-01-07 01:58:14 MER BLUE389.4 yards 267°2025-01-07 04:45:41
ALETTA404.2 yards 267°2025-01-07 05:19:18 EVELINE480.8 yards 95°2025-01-07 04:28:03
DECIBEL0.3 miles 95°2025-01-07 08:37:25 RIJNPLUS0.3 miles 75°2025-01-07 04:45:09
REGGEPLUS0.3 miles 79°2025-01-07 08:07:41 ARUBA0.3 miles 268°2025-01-07 03:05:31
NOORDZEE0.4 miles 350°2025-01-07 00:19:53 HEBOCAT 100.4 miles 335°2025-01-05 19:48:23
VLAKE0.4 miles 82°2025-01-07 06:03:08 PAX0.5 miles 87°2025-01-07 06:36:48
RUBICON0.6 miles 270°2025-01-07 08:34:44 SIBO0.6 miles 341°2025-01-06 22:36:11
CHOPIN0.6 miles 275°2025-01-06 16:43:26 MERWEPLUS0.7 miles 79°2025-01-07 08:40:05
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS