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Japan flag

POLARIS — Pilot Vessel · MMSI 431000764

JPUnder way using engine
World map showing the last known position of POLARIS at 35° 26.662' N, 139° 39.665' E
NSEW
Current PositionLast report

POLARIS was last reported under way in the Sea of Japan, at 35.4444° N, 139.6611° E, on 6 Sep 2026, 11:15 UTC. It was sailing from YOKOHAMA to YOKOHAMA with an ETA of 6 Sep 2026, 10:58 UTC.

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Updated 2 days ago using terrestrial data
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Under way using engine
Current Navigational Status
0.1 kn
Speed
269.0°
/ 318°
Course / Heading
2.6 m
Static Draught
2.6 m
Current Draught

Voyage Tracker

ATD
07:43 UTCSep 6, 2026
ETA
10:58 UTCSep 6, 2026
POLARIS

POLARIS

Identity

Pilot Vessel
Type
Japan flagJP
Flag
N/A
IMO Number
431000764
MMSI
JD2797
Call Sign

Specifications

30 m × 5 m
Length × Breadth
N/A
Year Built
N/A
Deadweight
N/A
Gross Tonnage
N/A
Engine Power
N/A
Builder
N/A
Class Society
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Dive into the fleet, port, and flag state that POLARIS is part of.

Flag State
All JP-flagged vessels
Browse every ship currently registered under the JP flag, with live AIS positions.
Vessel Type
Browse all Pilot Vessels
See the global fleet of pilot vessels tracked on MarineRadar with live AIS data.
Departure Port
Port of YOKOHAMA
Port traffic, arrivals and live vessel positions for YOKOHAMA (JPYOK).

About POLARIS

Identity · Ownership · Class · Route

POLARIS — Pilot Vessel

POLARIS is a pilot vessel registered under the Japan flag.

POLARIS route and voyage history

POLARIS is currently on a voyage from YOKOHAMA to YOKOHAMA with an estimated arrival on 2026-09-06T10:58:00Z. The live route and current course of POLARIS are shown on the bridge map above, updated whenever the vessel is in range of a coastal AIS receiver or a satellite pass.

Vessel class and identifiers

Vessels in the same class as POLARIS can be seen in the Similar Vessels section above or in the full pilot vessel fleet at /vessel-type/tug-pilot-vessel.

Frequently Asked Questions

Where is POLARIS right now?+
POLARIS was last reported under way in the Sea of Japan, within the Japan / Korea shipping lane, on 6 Sep 2026, 11:15 UTC. It was sailing from YOKOHAMA to YOKOHAMA with an ETA of 6 Sep 2026, 10:58 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.
What are the identifiers for POLARIS?+
POLARIS broadcasts MMSI 431000764, with call sign JD2797. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.
What type of ship is POLARIS?+
POLARIS is classified as a pilot vessel vessel registered under the JP flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full pilot vessel fleet at /vessel-type/tug-pilot-vessel and full JP flag list at /flag/jp.
How can I see the live position of POLARIS?+
MarineRadar shows the latest AIS broadcast from POLARIS above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.
How often is POLARIS's position updated?+
AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.
What class is POLARIS?+
As a pilot vessel, POLARIS sits in the same design class as the other pilot vessels listed in the Similar Vessels section of the vessel page, or in the full pilot vessel directory at /vessel-type/tug-pilot-vessel.

POLARIS — Key Facts

MMSI
431000764
Call sign
JD2797
Vessel type
Pilot Vessel
Flag state
JP
Navigation status
Under way using engine
Current speed
0.1 knots
Course over ground
269.0°
Heading
318°
Last known position
35.4444°, 139.6611°
Destination
YOKOHAMA
ETA
2026-09-06T10:58:00Z
Departure port
YOKOHAMA
Actual time of departure
2026-09-06T07:43:00Z
Current draught
2.6 m
Maximum static draught
2.6 m
AIS last updated
2026-09-06T11:15:00Z