ISS tracking a single ship over four months

An example of ship tracking made possible using space-based AIS that is not possible using its ground-based equivalent. The track is colour coded in time, ranging through red, blue and yellow with increasing time. The ship in this example has been tracked for the entire duration of the first NORAIS operational period: red dots indicate ship position in June, green dots indicate ship position in July, blue dots indicate ship position in August and yellow dots indicate ship position in September. The one red dot off the coast of Africa is due to a clock reset on NORAIS.
From the static AIS messahes received, the ship reported its destination as Comodoro Rivadavia in Argentina, then San Vicente, Quintero and Talcahuanco in Chile, back to Comodoro Rivadavia, then back to Talcahuano and Quintero, onto Rio de Janeiro and Angra Dos Reis in Brazil, across to Sines in Portual and then down to Qua Iboe in Nigeria, and this corresponds well to the track followed.