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 HM-21 - show graphs
Map loading...
Callsign: OI-977
MMSI number: 230995840
Navigational status: Under way (engine) (0)
Vessel class: SAR (51)
Destination: HELSINKI
Location: 60°06.95' N 25°04.37' E - locator KP20MC87RS - show map - static map
6.0 miles Southeast bearing 128° from Helsinki, Nyland, Southern Finland, Finland [?]
9.6 miles Southeast bearing 122° from Teekkarikylä (Teekkarikylae), Nyland, Southern Finland, Finland
48.2 miles North bearing 13° from Tallinn, Tallinna linn, Harjumaa, Estonia
Last position: 2016-10-03 03:28:43 EDT (62d 40m ago)
2016-10-03 10:28:43 EEST local time at Helsinki, Finland [?]
Course: 356° – heading 18°
Speed: 1 MPH
Dimensions: length 15 m width 5 m draught 0.8 m
Last path: OI-977>ais via hankoais
Positions stored: 12575
Stations near current position of HM-21 - show more
callsign distance last heard - EST      callsign distance last heard - EST
CALYPSO2.0 miles 278°2016-12-03 21:00:59 Met stn3.5 miles 257°2016-11-29 09:06:21
GR3.5 miles 257°2016-12-04 03:08:55 PILOT L1453.5 miles 258°2016-11-12 22:59:31
LOTUS3.5 miles 293°2016-12-03 08:35:55 SUOMENLINNA II3.8 miles 307°2016-12-04 02:56:49
MARIELLA3.9 miles 315°2016-12-04 02:57:57 SUOKKI4.1 miles 312°2016-11-12 23:45:07
SUURSAARI4.3 miles 329°2016-11-12 23:42:54 SILJA SYMPHONY4.4 miles 313°2016-12-04 03:08:55
VIKING XPRS4.6 miles 232°2016-12-04 03:04:31 KONTIO5.0 miles 318°2016-11-12 23:45:07
YOLDIA5.1 miles 341°2016-11-13 05:15:47 SISU5.1 miles 317°2016-11-12 23:42:54
SPR_HQ5.1 miles 307°2016-12-04 03:02:22 k0ssu-145.1 miles 307°2016-12-03 02:24:56
JULPERI5.4 miles 293°2016-11-12 06:58:28 ATTILA5.5 miles 292°2016-11-22 16:13:54
OH2BXG-55.6 miles 302°2016-12-03 05:57:31 AAVA5.6 miles 322°2016-11-12 23:43:57
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.
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