Persons keenly interested in the progress of the tugboat “Ohio” should point their Web browsers to marinetraffic.com. This internet service provides a world-wide live ships map generated by AIS (Automatic Identification System).
The International Maritime Organization (IMO) requires all vessels over 299GT to carry an AIS transponder on board.
The unit transmits position, speed and course, and static information such as vessel’s name, dimensions and voyage details. Vessel positions shown may be up to 1 hour old in spite of real-time information in the database, due to processing lag time.