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Japan flag

TSUKUBA — Tug · IMO 9674593

JPStopped
World map showing the last known position of TSUKUBA at 36° 25.651' N, 140° 36.502' E
NSEW
Current PositionLive

TSUKUBA is currently positioned in the Sea of Japan, at 36.4275° N, 140.6084° E. It is sailing from OARAI to HITACHINAKA with an ETA of 6 Sep 2026, 11:03 UTC. AIS position received 8 Sep 2026, 15:50 UTC.

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Updated 3 minutes ago using terrestrial data
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Stopped
Current Navigational Status
0.1 kn
Speed
0.0°
/ 4°
Course / Heading
3.5 m
Static Draught
3.5 m
Current Draught

Voyage Tracker

Japan flag
OARAIJPOAR
ATD
10:27 UTCSep 6, 2026
ETA
11:03 UTCSep 6, 2026
TSUKUBA

TSUKUBA

Identity

Tug
Type
Japan flagJP
Flag
9674593
IMO Number
431004713
MMSI
JD3547
Call Sign

Specifications

32 m × 12 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 TSUKUBA 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 Tugs
See the global fleet of tugs tracked on MarineRadar with live AIS data.
Departure Port
Port of OARAI
Port traffic, arrivals and live vessel positions for OARAI (JPOAR).
Destination Port
Port of HITACHINAKA
Arrivals, berth specifications, and live vessel traffic for HITACHINAKA (JPHIC).

About TSUKUBA

Identity · Ownership · Class · Route

TSUKUBA — Tug

TSUKUBA is a tug registered under the Japan flag.

TSUKUBA route and voyage history

TSUKUBA is currently on a voyage from OARAI to HITACHINAKA with an estimated arrival on 2026-09-06T11:03:00Z. The live route and current course of TSUKUBA 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 TSUKUBA can be seen in the Similar Vessels section above or in the full tug fleet at /vessel-type/tug-pilot-vessel.

  • MMSI: 431004713
  • IMO: 9674593
  • Call sign: JD3547
  • Vessel type: Tug
  • Flag state: Japan

Frequently Asked Questions

Where is TSUKUBA right now?+
TSUKUBA is currently in the Sea of Japan, within the Japan / Korea shipping lane. It is sailing from OARAI to HITACHINAKA with an ETA of 6 Sep 2026, 11:03 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 TSUKUBA?+
TSUKUBA broadcasts MMSI 431004713 and is registered as IMO 9674593, with call sign JD3547. 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 TSUKUBA?+
TSUKUBA is classified as a tug vessel registered under the JP flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full tug fleet at /vessel-type/tug-pilot-vessel and full JP flag list at /flag/jp.
How can I see the live position of TSUKUBA?+
MarineRadar shows the latest AIS broadcast from TSUKUBA 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 TSUKUBA'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 TSUKUBA?+
As a tug, TSUKUBA sits in the same design class as the other tugs listed in the Similar Vessels section of the vessel page, or in the full tug directory at /vessel-type/tug-pilot-vessel.

TSUKUBA — Key Facts

MMSI
431004713
IMO number
9674593
Call sign
JD3547
Vessel type
Tug
Flag state
JP
Navigation status
Stopped
Current speed
0.1 knots
Course over ground
0.0°
Heading
4°
Last known position
36.4275°, 140.6084°
Destination
HITACHINAKA
ETA
2026-09-06T11:03:00Z
Departure port
OARAI
Actual time of departure
2026-09-06T10:27:00Z
Current draught
3.5 m
Maximum static draught
3.5 m
AIS last updated
2026-09-08T15:50:19Z