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AIS vessel CG_POLAR_STAR - show graphs
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Callsign: NBTM
MMSI number: 367255000
IMO number: 367471
Navigational status: Under way (engine) (0)
Vessel class: Law enforcement (55)
Destination: SEATTLE_WA (ETA Feb20 12:00)
Location: 37°51.47' N 122°24.69' W - locator CM87TU05PV - show map - static map
2.7 miles Southeast bearing 114° from Tiburon, Marin County, California, United States [?]
3.1 miles East bearing 109° from Belvedere, Marin County, California, United States
5.7 miles North bearing 4° from San Francisco, San Francisco County, California, United States
45.6 miles Northwest bearing 322° from San Jose, Santa Clara County, California, United States
Last position: 2021-03-25 11:03:59 EDT (50d 8h18m ago)
2021-03-25 08:03:59 PDT local time at Tiburon, United States [?]
Course: 345° – heading 342°
Speed: 9 MPH
Dimensions: length 122 m width 25 m draught 10.0 m
Last path: NBTM>ais via SUNSET
Positions stored: 11517
Stations near current position of CG_POLAR_STAR - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
MARE ISLAND0.5 miles 29°2021-04-20 20:26:57 3681804600.5 miles 125°2021-04-15 23:18:12
3386910000.5 miles 3°2021-04-21 16:41:01 LYRA0.6 miles 153°2021-04-16 21:36:00
CORPUS CHRISTI0.8 miles 163°2021-04-21 14:21:16 Z FIVE1.0 miles 88°2021-04-20 09:49:39
MILLENNIUM DAWN1.1 miles 29°2021-04-20 20:07:36 KESTREL1.1 miles 85°2021-04-19 15:19:31
DAVID H PETERSON1.2 miles 142°2021-04-20 15:20:21 NAPA1.2 miles 142°2021-04-16 15:38:06
SCORPIO1.2 miles 124°2021-04-19 12:14:30 PERALTA1.3 miles 111°2021-04-21 12:12:45
3675147801.5 miles 171°2021-04-16 14:15:01 BAY MONARCH1.7 miles 243°2021-04-18 17:56:38
DEL NORTE1.8 miles 243°2021-04-21 11:04:31 CALIFORNIAHORNBLOWER2.0 miles 188°2021-04-18 15:49:19
PYXIS2.0 miles 201°2021-04-14 22:37:32 3681442902.2 miles 116°2021-04-20 10:21:10
ROYAL_PRINCE2.2 miles 203°2021-04-21 16:42:29 HARBOR EMPEROR2.2 miles 190°2021-04-21 16:44:20
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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