Question 1

Where is TB JOHAN JAYA 173 right now?

Accepted Answer

TB JOHAN JAYA 173 is currently under way in the Indian Ocean. It is sailing from PALEMBANG to PALEMBANG ANCH with an ETA of 5 Aug 2026, 05:26 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

Question 2

What are the identifiers for TB JOHAN JAYA 173?

Accepted Answer

TB JOHAN JAYA 173 broadcasts MMSI 525701086, with call sign YDC3787. 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.

Question 3

What type of ship is TB JOHAN JAYA 173?

Accepted Answer

TB JOHAN JAYA 173 is classified as a tug vessel registered under the ID 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 ID flag list at /flag/id.

Question 4

How can I see the live position of TB JOHAN JAYA 173?

Accepted Answer

MarineRadar shows the latest AIS broadcast from TB JOHAN JAYA 173 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.

Question 5

How often is TB JOHAN JAYA 173's position updated?

Accepted Answer

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.

Question 6

What class is TB JOHAN JAYA 173?

Accepted Answer

As a tug, TB JOHAN JAYA 173 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.

TB JOHAN JAYA 173 — Tug

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