TB.MTS 61

Particulars

MMSI	525501349
Call sign	YDC4554
Flag	Indonesia
Vessel type	Tug
Length overall	26 m
Beam	8 m

From her own AIS broadcasts.

Her MMSI

525501349

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	8 m (A)
To the stern	18 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, 21:02 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

KM BAROKAH MAKMUR 2 Fishing vessel3.5 nm
MAX 1811 nm
GIHON MAS Cargo ship11 nm
T^5EMBAHRUKUN _ Fishing vessel13 nm
KM.SLAMET BERKAH Fishing vessel15 nm
EXPRESS BAHARI 3C⁠has a photo Passenger ship18 nm
SPOB LIANG INDAH 01 Tanker18 nm
MERATUS BORNEO Cargo ship19 nm

Where she is

Position	5.6658° S, 110.6504° E
Speed	2.9 knots
Course	88°
Local time

Voyage

To: Not reported
ETA: Not reported