KSA 177

Particulars

MMSI	525110171
Call sign	YDD4044
Flag	Indonesia
Vessel type	Tug
Length overall	28 m
Beam	4 m

From her own AIS broadcasts.

Her MMSI

525110171

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	10 m (A)
To the stern	18 m (B)
To the port side	2 m (C)
To the starboard side	2 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 07:12 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

TONASA LINES XXUI Cargo ship4.0 nm
TB KSA 175 Tug4.3 nm
KM SEMANGAT IBU Fishing vessel6.5 nm
GAJAH SAMUDRA - 2 Fishing vessel7.0 nm
SEMANGAT IBU-2 Fishing vessel7.6 nm
KM BIMANTARA 5 Wing-in-ground craft12 nm
DS GRACE Tanker12 nm
KALTIM DOLPHIN 10-08 Towing vessel13 nm

Where she is

Position	6.1660° S, 111.0565° E
Speed	3.4 knots
Course	254°
Local time

Voyage

To: Not reported
ETA: Not reported