MarineActivityAIS · shore receivers worldwide

PP-3501

MilitaryLaw enforcement vesselTaiwan

Position 4 h agoSource: AISStream.ioFree for any use

Identity

Name
PP-3501
MMSI
416007462
IMO number
Not reported
Call sign
Not reported
Station type
Ship station

Classification & hull

AIS type code
55
Type
Law enforcement vessel
Category
Military
Length overall
Not reported
Beam
Not reported
Draught
Not reported

Length is the sum of the two AIS reference-point dimensions fore and aft; beam is the sum of the port and starboard pair. Both come from the vessel's own static report.

Voyage & motion

Destination
Not reported
ETA
Not reported
Navigational status
Under way using engine
Speed over ground
18.8 kn
Course over ground
333°
True heading
Not reported

Destination, ETA and navigational status are typed in on the bridge, not measured. Speed, course and heading come from the vessel's instruments.

Last known position

Latitude
25° 13.406' N
Longitude
121° 43.853' E
Decimal
25.22343, 121.73089
Received
4 h ago
Reported by ship
Not reported
Source feed
AISStream.io

This is the latest position our store holds, not a live fix. The vessel has been free to move for the whole of the age shown above.

Basemap © OpenStreetMap contributors

Only one position is held for this vessel, so no track can be drawn.

Nearby

Other vessels near this one

Everything else our snapshot holds within 25 nm of PP-3501's last known position, straight-line distance and true bearing — not a route either vessel is following.

VesselTypeDistanceBearing from PP-3501
SHENG FA YIHUnknown0.7 nm88° E
MMSI 200015962Unknown0.7 nm91° E
MMSI 416012098Unknown1.1 nm35° NE
MMSI 261405532Unknown1.2 nm354° N
HAI REN NO.6Pleasure craft1.4 nm76° ENE
MMSI 416018997Unknown1.8 nm184° S
HAI DIAO NO.8Unknown1.8 nm210° SSW
A HORNG NO.1Unknown1.8 nm349° N
MMSI 416010677Unknown1.9 nm234° SW
MMSI 254206517Unknown2.0 nm125° SE
JIN DA FAUnknown2.1 nm316° NW
RIH FU NO.168Fishing vessel2.3 nm170° S
CTS-3010Unknown2.3 nm221° SW
CTS-7898Unknown2.3 nm239° WSW
MMSI 416003183Unknown2.3 nm272° W

Ranked by great-circle distance from PP-3501's last known fix, both taken from the same snapshot moment. Neither vessel has necessarily stayed put since — see the age shown above for how stale each position may be. Also available as JSON: /api/nearby.

What this data means

Reading this record

Everything above comes from two different AIS transmissions. Position, speed, course and heading arrive in message 1, 2 or 3, broadcast every few seconds while under way — that is why the position age above can be very small. Name, MMSI, IMO number, call sign, type and dimensions arrive in a separate static report — message 5 for a Class A transponder, message 24 for Class B — sent only around once every six minutes. A vessel can therefore show a fresh position with an old or missing static report, or the reverse.

Nothing here is estimated, interpolated, or carried over from a previous ship at the same MMSI. Where the vessel did not transmit a field, or transmitted a value the standard defines as "not available", we print “Not reported” rather than guess.

Data for this page comes from AISStream.io under Free for any use. Field meanings are explained in the reference guides. Nothing on this page is derived, estimated or filled in — where a field is empty, we print “Not reported”.