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United States flag

MARGARET ANNE — Tug · MMSI 367772590

USTowing alongside
World map showing the last known position of MARGARET ANNE at 38° 49.437' N, 90° 6.978' W
NSEW
Current PositionLive

MARGARET ANNE is currently positioned in the North Pacific Ocean, at 38.8239° N, 90.1163° W. It is sailing from ST LOUIS to HOUSTON with an ETA of 4 Sep 2026, 18:33 UTC. AIS position received 8 Sep 2026, 18:49 UTC.

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Updated 2 minutes ago using terrestrial data
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Towing alongside
Current Navigational Status
0.0 kn
Speed
279.0°
/ 193°
Course / Heading
3.1 m
Static Draught
3.1 m
Current Draught

Voyage Tracker

ATD
16:55 UTCSep 4, 2026
United States flag
HOUSTONUSHOU
ETA
18:33 UTCSep 4, 2026
MARGARET ANNE

MARGARET ANNE

Identity

Tug
Type
United States flagUS
Flag
N/A
IMO Number
367772590
MMSI
WDJ3914
Call Sign

Specifications

207 m × 18 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 MARGARET ANNE is part of.

Flag State
All US-flagged vessels
Browse every ship currently registered under the US 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 ST LOUIS
Port traffic, arrivals and live vessel positions for ST LOUIS (USSTL).
Destination Port
Port of HOUSTON
Arrivals, berth specifications, and live vessel traffic for HOUSTON (USHOU).

About MARGARET ANNE

Identity · Ownership · Class · Route

MARGARET ANNE — Tug

MARGARET ANNE is a tug registered under the United States of America flag.

MARGARET ANNE route and voyage history

MARGARET ANNE is currently on a voyage from ST LOUIS to HOUSTON with an estimated arrival on 2026-09-04T18:33:00Z. The live route and current course of MARGARET ANNE 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 MARGARET ANNE can be seen in the Similar Vessels section above or in the full tug fleet at /vessel-type/tug-pilot-vessel.

Frequently Asked Questions

Where is MARGARET ANNE right now?+
MARGARET ANNE is currently in the North Pacific Ocean. It is sailing from ST LOUIS to HOUSTON with an ETA of 4 Sep 2026, 18:33 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 MARGARET ANNE?+
MARGARET ANNE broadcasts MMSI 367772590, with call sign WDJ3914. 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 MARGARET ANNE?+
MARGARET ANNE is classified as a tug vessel registered under the US 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 US flag list at /flag/us.
How can I see the live position of MARGARET ANNE?+
MarineRadar shows the latest AIS broadcast from MARGARET ANNE 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 MARGARET ANNE'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 MARGARET ANNE?+
As a tug, MARGARET ANNE 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.

MARGARET ANNE — Key Facts

MMSI
367772590
Call sign
WDJ3914
Vessel type
Tug
Flag state
US
Navigation status
Towing alongside
Current speed
0.0 knots
Course over ground
279.0°
Heading
193°
Last known position
38.8239°, -90.1163°
Destination
HOUSTON
ETA
2026-09-04T18:33:00Z
Departure port
ST LOUIS
Actual time of departure
2026-09-04T16:55:00Z
Current draught
3.1 m
Maximum static draught
3.1 m
AIS last updated
2026-09-08T18:49:00Z