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Users can submit photographs of the vessels which other users can rate. The basic MarineTraffic service can be used without cost; more advanced functions such as satellite-based tracking are available subject to payment. [3] The site has six million unique visitors on a monthly basis. In April 2015, the service had 600,000 registered users. [4] [5]
An AIS-equipped system on board a ship presents the bearing and distance of nearby vessels in a radar-like display format. A graphical display of AIS data on board a ship. The automatic identification system (AIS) is an automatic tracking system that uses transceivers on ships and is used by vessel traffic services (VTS).
LRIT requires the active, willing participation of the vessel involved, which is, in and of itself, a very useful indication as to whether the vessel in question is a lawful actor. Thus the information collected from the two systems, S-AIS and LRIT, are mutually complementary, and S-AIS clearly does not make LRIT superfluous in any manner.
The decision to create a tracking and control fleet started with a suggestion in 1965 by Qian Xuesen that intended to help with the development of the Dongfeng-5 ICBM.On July 18, 1967, the project was officially launched under the umbrella of the then State Commission for Science and Technology and, as was customary in China, named after the date: "Project 718" (718工程, pinyin: 718 ...
Heading and track (A to B) 1 – True North 2 – Heading, the direction the vessel is "pointing towards" 3 – Magnetic north, which differs from true north by the magnetic variation. 4 – Compass north, including a two-part error; the magnetic variation (6) and the ship's own magnetic field (5)
Sweden has a nationwide VMS established in 1998 and based on Inmarsat-C. The system is operated 24/7 by Havs- och vattenmyndigheten (The Swedish Agency for Marine and Water Management) and monitors all fishing vessels >= 12 m LoA. Number of vessels being monitored: 184 [2013-05-22].
The IMO number of the International Maritime Organization is a generic term covering two distinct meanings. The IMO ship identification number is a unique ship identifier; the IMO company and registered owner identification number is used to identify uniquely each company and/or registered owner managing ships of at least 100 gross tons (gt).
An ENI number (European Number of Identification or European Vessel Identification Number) is a registration for ships capable of navigating on inland European waters. It is a unique, eight-digit identifier that is attached to a hull for its entire lifetime, independent of the vessel's current name or flag .