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AIS Historical Vessel Tracks

Provides historical AIS data tracks via the exactEarth HVT API.


Introduction

This block provides historical Automatic Identification System tracks of ships. These datasets are available anywhere on the globe. The datasets are available starting with 2010.

Historical Vessel Tracks
Historical Vessel Tracks

Technical information

Compatible blocks

Compatible blocks
Count Objects
Export Data (Vector)

Dataset description

An AIS track segment is the line segment between 2 consecutive vessel positions. The segment inherits the latest vessel position, static and voyage related information from the most recent of the 2 consecutive vessel positions.

Extra

For more information, please refer to the exactEarth website.

Geographic coverage

The geographic coverage is global.

Dataset information

Specifications Description
Data availability 2010-present
File format GeoJSON (multilinestring geometry)
Coordinate system WGS84/EPSG4326

Limitations

  1. This data block cannot be run as a test query. Users need to make sure that the JSON parameters of the job are correctly configured before running a real job.
  2. This block is restricted and it requires an access request that needs to be sent to the support team. For more information, please refer to Restricted blocks.
  3. This dataset is exclusively allowed for internal usage.
  4. Users from the following categories are excluded: US Government, China, Japan, and companies linked to Commodity Trading.

AIS Historical Vessel Tracks Metadata

AIS parameter AIS parameter description Example
mmsi The Maritime Mobile Service Identity is a unique nine-digit number for identifying a ship. MMSI is programmed into all AIS systems and VHF electronics on board of the vessel and provides an internationally standardized number for contacting the vessel. 263959721
imo The International Maritime Organization is part of the static AIS information provided by the vessel's crew and can be transmitted additionally. IMO9525429
vessel_name Name of the vessel (up to 20 characters) BLACK STAR
callsign International radio call sign assigned to the vessel by its country of registry CRA8155
vessel_type Vessel type Cargo
vessel_type_code The AIS ID of the vessel type 72
vessel_type_cargo Detailed description of the cargo type Carrying DG,HS or MP,IMO hazard or Pollutant Category Y
vessel_class Class A AIS transponders are required to have a DSC (156.525 MHz) receiver, external GPS, heading, and rate of turn indicator, and can also transmit and receive safety-related text messages. Class B AIS transponders operate using Carrier-Sense TDMA (CSTDMA) broadcast mode and transmit at a power level of 2 watts. A
length Length approximated to the nearest metre (based on the position of the AIS Station on the vessel) 99
width Width approximated to the nearest metre (based on the position of the AIS Station on the vessel) 14
flag_country The vessel’s flag Portugal
flag_code The first 3 digits of the MMSI number indicate the vessel’s flag 263
destination The vessel’s destination (up to 20 characters) PT FDF
eta Estimated time of arrival (UTC month/date hours: minutes) 2460
draught 0.1 to 25.5 metres 8.6
from_longitude WSG 84 longitude coordinate (decimal degrees) -9.31822
from_latitude WSG 84 latitude coordinate (decimal degrees) 38.675405
longitude Position coordinate (decimal degrees) -9.31821333333333
latitude Position coordinate (decimal degrees) 38.6754166666667
sog Speed over ground (0 to 102 knots) 0.1
cog Course over ground (up to 0.1° relative to true north) 85.4
rot Rate of turn - right or left (0 to 720 degrees per minute) 7.54420872834595
heading 0 to 359 degrees 79
nav_status The navigational status that is manually set by the vessel crew Under Way Using Engine
nav_status_code The navigational status code 0
source AIS data type (Terrestrial AIS, Satellite AIS, Vessel AIS) T-AIS
ts_pos_utc Timestamp of the last position AIS message (UTC) 20211123000040
ts_static_utc Timestamp of the last static AIS message (UTC) 20211122235234
dt_pos_utc Date/time of the last position AIS message (UTC) 2021/11/23 0:00:40
dt_static_utc Date/time of the last static AIS message (UTC) 2021/11/22 23:52:34
vessel_type_main Main vessel type Passenger Ship
vessel_type_sub Subcategory of vessel type Passenger Ro Ro Cargo Ship
message_type AIS message type 1
eeid ExactEarth identifier 5433869460680721844
dtg Date-time group for the last position AIS message (UTC) 2021/11/23 0:00:40

How it works

Supported JSON parameters Default value Min Max Examples
time "2021-01-01T00:00:00+00:00/2021-01-01T23:59:59+00:00" 01.07.2010 present "time": "2021-11-23T00:00:00+00:00/2021-11-23T23:59:59+00:00"
bbox/intersects null n.a. n.a. Please check the examples from the JSON parameters.

Examples

Example based on a workflow created with the data block AIS Historical Vessel Tracks:

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Capabilities

Output

To know more please check the block capabilities specifications.