TB PRATAMA II

Particulars

MMSI	525024050
Call sign	YDA4642
Flag	Indonesia
Vessel type	Towing
Length overall	28 m
Beam	8 m

From her own AIS broadcasts.

Her MMSI

525024050

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	7 m (A)
To the stern	21 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, 06:51 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

OKINAWA Cargo ship0.4 nm
OPS ALTAIR Tanker1.3 nm
PANGRANGO P1034 Tanker1.7 nm
TB CANTIKA 8 Tug2.1 nm
MV UMBUL MAS Cargo ship2.5 nm
MUSI PROSPERITY Tanker3.0 nm
KARYA PACIFIC 2237 Tug3.0 nm
SUCCESSPEGASUS XXXVI Tanker3.0 nm

Where she is

Position	2.0808° S, 105.0348° E
Speed	4.8 knots
Course	334°
Local time

Voyage

To: Not reported
ETA: Not reported