SVITZER MARLSTON

Particulars

MMSI	503133520
IMO number	9920473
Call sign	VMMV
Flag	Australia
Vessel type	Tug
Length overall	25 m
Beam	13 m
Draught	5.5 m

From her own AIS broadcasts.

Her MMSI

503133520

The first three digits, 503, are the country code of Australia: an MMSI follows a ship's flag, so a new flag brings a new number.

Her IMO number, 9920473, stays with the hull for life.

Her AIS details

AIS is the radio signal a ship sends so that other ships can see her. This is what her signal tells us.

Seen from above, bow to the right, so port is the upper side. The ring is her GPS aerial, where her crew or installer said it sits. Shiptrail draws the aerial's position, not the middle of the ship.

AIS class	Class AWorked out, not reported: only Class A transponders send a status, and she sends one. Class A is the full-strength kind that large cargo and passenger ships must carry.
Status she reports	Moored
To the bow	13 m (A)
To the stern	12 m (B)
To the port side	7 m (C)
To the starboard side	6 m (D)
Destination as typed	BUNBURYWhat the crew entered; the Voyage card turns it into a port.
Heard from	AISStream
On the map since	22 Oct 2026, 07:25 UTC

A, B, C and D are AIS's own names for these four distances.

From her own AIS broadcasts as the feed delivers them.

Ships near her

SVITZER KOOMBANA Tugunder 0.1 nm
MIRABELLA Pleasure craft0.3 nm
SHANGHAI EXPRESS Cargo ship1.2 nm
AN SHUN Cargo ship1.3 nm
SEAGLASS II Cargo ship1.4 nm
DARYA SINDHU Cargo ship1.5 nm
OCEAN ERSA Cargo ship1.7 nm
POSEIDON.GR Cargo ship2.6 nm

Where she is

Position	33.3073° S, 115.6426° E
Speed	Stopped, 0.2 knots
Local time

Voyage

From: Bunbury, AustraliaDeparted 29 Oct 2026 (inferred)
To: Bunbury, AustraliaAbout 2.0 nm away in a straight line
ETA: 29 Nov 08:00 UTC