TB.MARTHA I

Particulars

MMSI	525015358
Call sign	YD 2053
Flag	Indonesia
Vessel type	Tug
Length overall	29 m
Beam	8 m

From her own AIS broadcasts.

Her MMSI

525015358

The first three digits, 525, are the country code of Indonesia: an MMSI follows a ship's flag, so a new flag brings a new number.

She broadcasts no IMO number. Only larger seagoing ships are required to have one.

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 BWorked out, not reported: only Class A transponders send a status, and she sends none. Class B is the lighter kind on yachts, fishing boats and other small craft, which reports less often.
To the bow	15 m (A)
To the stern	14 m (B)
To the port side	4 m (C)
To the starboard side	4 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 19:56 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

BOJOMA 2912 Tug1.7 nm
TB MARINA 2218 Wing-in-ground craft2.2 nm
GONAYA Towing vessel3.0 nm
TB INTAN MEGAH 21 Towing vessel3.2 nm
SAHABATKAPUASUTAMA 3 Towing vessel3.9 nm
MV AKIRA Cargo ship4.0 nm
TB NUSA XXXIII 20244.2 nm
MV TAISHO 31 Cargo ship4.3 nm

Where she is

Position	2.2470° S, 104.9233° E
Speed	1.3 knots
Course	6°
Local time

Voyage

To: Not reported
ETA: Not reported