SATSUMA10

Particulars

MMSI	431013682
Call sign	JH3401
Flag	Japan
Vessel type	Cargo ship
Length overall	68 m
Beam	13 m

From her own AIS broadcasts.

Her MMSI

431013682

The first three digits, 431, are the country code of Japan: 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	50 m (A)
To the stern	18 m (B)
To the port side	3 m (C)
To the starboard side	10 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 05:19 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

SHINKO MARU NO.38 Tanker0.1 nm
RYOSEI MARU Tanker0.4 nm
TETSURYUMARU Cargo ship0.5 nm
SEIJU Cargo ship0.6 nm
EISHO MARU Cargo ship0.8 nm
KYOKUSHO MARU Tanker0.8 nm
SUMIYOSHIMARUNO.37 Tug0.9 nm
OOWADA Cargo ship1.0 nm

Where she is

Position	34.1511° N, 132.8876° E
Speed	10.8 knots
Course	219°
Local time

Voyage

To: Not reported
ETA: Not reported