Russian specialists have completed the operation to raise the orbit of the International Space Station (ISS) by about 5 km (3 miles), Mission Control said on Sunday.

"The space maneuver was carried out in the nominal mode and took about 150 seconds," Mission Control said.

Corrections to the space station's orbit are conducted periodically before launches of Russian cargo ships and U.S. shuttles to compensate for Earth's gravity and to safeguard successful dockings.

The correction was made without the participation of the space station's crew, using thrusters on the Russian module Zvezda docked to the ISS, Mission Control said.

Russia plans to launch four manned and six cargo supply missions to the ISS in 2010.