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 ATHENA - show graphs
Callsign: 338500128
MMSI number: 338500128
Vessel class: Pleasure (37)
Location: 37°48.40' N 122°26.77' W - locator CM87ST63LO - show map
2.6 miles Northwest bearing 326° from San Francisco, San Francisco County, California, United States [?]
4.7 miles South bearing 173° from Tiburon, Marin County, California, United States
4.7 miles South bearing 168° from Belvedere, Marin County, California, United States
44.2 miles Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position: 2025-01-26 14:46:47 EST (9h58m ago)
2025-01-26 11:46:47 PST local time at San Francisco, United States [?]
Course: 0° – heading 511°
Speed: 0 MPH
Last path: 338500128>ais via SUNSET
Positions stored: 1
Stations near current position of ATHENA - show more
callsign distance last heard - EST      callsign distance last heard - EST
MADE EASIER7.1 yards 70°2025-01-26 15:30:35 SAPPHIRE C9.8 yards 209°2024-12-31 17:37:55
33845807311.3 yards 195°2025-01-26 19:06:47 MISS M18.1 yards 233°2024-12-30 07:23:58
COSMO26.0 yards 265°2025-01-26 11:18:16 STFYC S. BARROWS46.8 yards 305°2025-01-12 17:00:36
STFYC-WILHITE80.2 yards 256°2025-01-12 14:42:04 WESTIE100.3 yards 131°2025-01-13 12:28:35
ENCORE110.6 yards 73°2025-01-20 06:10:21 338450547191.0 yards 79°2025-01-26 11:09:38
STORY MAKER403.9 yards 357°2025-01-25 14:32:49 CRUZSEA BABY0.4 miles 51°2025-01-05 15:09:47
OCTAVIA0.4 miles 331°2024-12-30 17:33:37 DUENDE 0.5 miles 327°2025-01-25 12:32:54
CARMELITA0.5 miles 61°2025-01-24 16:18:22 KN6KQR-80.7 miles 144°2025-01-06 22:16:45
3383658940.8 miles 35°2025-01-21 18:22:47 3668909500.8 miles 61°2025-01-18 16:18:58
RECONNAISSANCE0.8 miles 37°2025-01-15 18:29:26 SAN FRANCISCO BELLE0.8 miles 332°2025-01-01 02:28:13
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