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 CONSTELLATION - show graphs
Callsign: 368136440
MMSI number: 368136440
Vessel class: Sailing (36)
Location: 37°49.59' N 122°28.55' W - locator CM87ST28VI - show map
3.3 miles South bearing 191° from Belvedere, Marin County, California, United States [?]
3.4 miles South bearing 198° from Tiburon, Marin County, California, United States
4.7 miles Northwest bearing 319° from San Francisco, San Francisco County, California, United States
46.3 miles Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position: 2024-12-28 19:50:43 EST (34d 8h22m ago)
2024-12-28 16:50:43 PST local time at Belvedere, United States [?]
Course: 191° – heading 201°
Speed: 6 MPH
Last path: 368136440>ais via SUNSET
Positions stored: 30
Stations near current position of CONSTELLATION - show more
callsign distance last heard - EST      callsign distance last heard - EST
SHARONDIPITY110.6 yards 179°2025-01-20 14:12:30 367611990242.9 yards 211°2025-01-26 19:42:59
MARGOT281.6 yards 199°2025-01-30 17:40:22 338254489285.9 yards 20°2025-01-25 15:36:50
STRAUSS 289.6 yards 42°2025-01-12 19:27:58 368031650291.1 yards 217°2025-01-11 18:47:06
368178020307.2 yards 27°2025-01-29 21:40:06 338324511317.2 yards 93°2025-01-19 17:19:07
ALCHERA359.8 yards 47°2025-01-12 17:24:40 338333194362.5 yards 149°2025-01-28 15:26:27
L`CHAIM371.0 yards 22°2025-01-12 17:45:09 338360556382.3 yards 77°2025-01-23 19:07:26
WATER WOLF413.7 yards 216°2025-01-19 13:26:09 368048190438.9 yards 60°2025-01-25 15:59:21
NOTEWORTHY 508.1 yards 198°2025-01-26 17:47:07 DARRING II525.6 yards 49°2025-01-31 20:09:34
BOSSA NOVA0.3 miles 163°2025-01-20 18:07:07 JOUJOU0.4 miles 205°2025-01-19 17:27:13
LA VIAJERA0.4 miles 187°2025-01-15 17:38:23 3669998910.4 miles 348°2025-01-31 15:19:33
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