Com Dev subsidiary exactEarth Ltd. of Cambridge, Ontario, said its newest maritime surveillance satellite has completed testing and entered into commercial service Nov. 26.

The exactView 1 (EV-1) satellite, launched in July into an 810-kilometer polar orbit aboard a Russian Soyuz rocket, is equipped with an automatic identification system (AIS) that relays information on ships at sea to coastal authorities. EV-1 brings to six the number of AIS satellites the company has in orbit.

The constellation will be expanded in 2013 by four additional satellites, including two dedicated craft and two hosting AIS payloads, exactEarth said in a press release.