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A complement to the near-shore radio-based Automatic Identification System (AIS), LRIT is a secure point-to-point system which collects, stores and routes data from vessels wherever they are on the high seas. Unlike AIS, LRIT signals are encrypted, ensuring they cannot be read by unwanted eavesdroppers. SOLAS Class A vessels must automatically transmit their identity, position, and date and time of transmission four times a day, or, if required, as often as every 15 minutes. Flag States store data on their own vessels in a dedicated or regional data centre, providing specific vessel data to other Flag States upon request when the vessel either enters that county’s coastal waters or gives notice that it is intending to enter one of its ports. Data obtained by Canada’s LRIT Data Centre is relayed to a MSOC and combined with other sensor data to improve maritime domain awareness.
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