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AIS vessel ROBERT S. PIERSON - show graphs
Callsign: CFN4934
MMSI number: 316011905
IMO number: 366403
Navigational status: Under way (engine) (0)
Vessel class: Cargo (79)
Destination: SOO ONT (ETA Jan07 23:00)
Location: 42°58.99' N 82°24.69' W - locator EN82TX05PW - show map
0.5 miles Northwest bearing 310° from Sarnia, Ontario, Canada [?]
1.1 miles Northeast bearing 39° from Port Huron, Saint Clair County, Michigan, United States
55.3 miles Northeast bearing 35° from Detroit, Wayne County, Michigan, United States
59.5 miles West bearing 270° from London, Ontario, Canada
Last position: 2025-01-15 08:36:07 EST (17d 11h35m ago)
2025-01-15 08:36:07 EST local time at Sarnia, Canada [?]
Course: 138° – heading 279°
Speed: 1 MPH
Dimensions: length 192 m width 21 m draught 6.7 m
Last path: CFN4934>ais via AIS-CK
Positions stored: 85445
Stations near current position of ROBERT S. PIERSON - show more
callsign distance last heard - EST      callsign distance last heard - EST
ALGOMA INTREPID96.9 yards 91°2025-01-31 08:58:34 SAMUEL RISLEY0.4 miles 276°2025-02-01 08:41:38
ALGOCANADA0.4 miles 222°2025-02-01 03:51:25 SAGINAW0.5 miles 212°2025-01-15 17:21:29
ALGOMA GUARDIAN1.1 miles 197°2025-01-08 21:26:40 ALGONOVA1.3 miles 337°2025-01-28 09:03:52
N8MIC-91.5 miles 298°2025-01-22 22:01:34 CW78762.1 miles 340°2025-02-01 20:00:42
GW37562.3 miles 328°2025-02-01 20:10:15 VE3TBI2.5 miles 37°2025-02-01 19:43:16
CAPT. HENRY JACKMAN2.5 miles 204°2025-01-07 15:25:17 AD8KO-Y2.7 miles 230°2025-01-28 11:58:39
VE3MWE-92.9 miles 92°2025-01-06 11:56:32 FW99403.3 miles 327°2025-02-01 20:04:14
VE3OMP3.5 miles 111°2025-02-01 20:06:30 VE3OMP-143.5 miles 112°2025-01-16 12:11:42
IVER BRIGHT3.7 miles 208°2025-01-30 14:26:52 GW20623.8 miles 286°2025-02-01 20:10:33
ALGOMA COMPASS4.6 miles 209°2025-01-29 22:35:00 EVERLAST5.0 miles 208°2025-01-31 15:38:51
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.
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