Question 1

Where is J.L.OBRIEN right now?

Accepted Answer

J.L.OBRIEN is currently moored in the Gulf of Mexico. It is sailing from LEEVILLE to LOOP with an ETA of 14 Jul 2026, 18:10 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 J.L.OBRIEN?

Accepted Answer

J.L.OBRIEN broadcasts MMSI 367761330, with call sign WDJ2749. 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 J.L.OBRIEN?

Accepted Answer

J.L.OBRIEN is classified as a anti-pollution vessel registered under the US flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder and full US flag list at /flag/us.

Question 4

How can I see the live position of J.L.OBRIEN?

Accepted Answer

MarineRadar shows the latest AIS broadcast from J.L.OBRIEN 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 J.L.OBRIEN'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 J.L.OBRIEN?

Accepted Answer

As a anti-pollution, J.L.OBRIEN sits in the same design class as the other anti-pollutions listed in the Similar Vessels section of the vessel page.

J.L.OBRIEN — Anti-Pollution · MMSI 367761330

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About J.L.OBRIEN