Question 1

Where is SO Z 4 right now?

Accepted Answer

SO Z 4 was last reported in the South Atlantic Ocean. 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 SO Z 4?

Accepted Answer

SO Z 4 broadcasts MMSI 311000944 and is registered as IMO 9890587. 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 SO Z 4?

Accepted Answer

SO Z 4 is classified as a port tender vessel registered under the BS flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder and full BS flag list at /flag/bs.

Question 4

How can I see the live position of SO Z 4?

Accepted Answer

MarineRadar shows the latest AIS broadcast from SO Z 4 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 SO Z 4'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 SO Z 4?

Accepted Answer

As a port tender, SO Z 4 sits in the same design class as the other port tenders listed in the Similar Vessels section of the vessel page.

SO Z 4 — Port Tender · IMO 9890587

Voyage Tracker

Identity

Specifications

Track SO Z 4 live on MarineRadar

About SO Z 4

SO Z 4 — Port Tender

SO Z 4 route and voyage history

Vessel class and identifiers

Frequently Asked Questions

SO Z 4 — Key Facts