The Block D upper stage delivered three GLONASS navigation satellites into their planned orbits at 08:39 GMT. These satellites were placed in GLONASS orbit plane 3. The satellites had an extended seven-year service life compared to earlier models. This was the sixth end-of-year replenishment launch since 2000. When operational they brought the total of operational GLONASS SVs in orbit to 16. The launch was part of a Russian government-funded program to replenish and expand the Glonass constellation to at least 18 operating satellites satellites by 2007 (compared to 14 satellites at the end of 2005). In 2006 launch of a new Glonass satellite design with a ten-year service was planned.

Three Glonass satellites are lofted in a single launch in support of restoring the Glonass navigation satellite constellation to full military and commercial functionality. They were placed in Glonass orbit plane 2, beginning its population. At the time of launch the constellation consisted of 11 operational spacecraft, and five more on-orbit spares. A fully operational constellation would consist of 24 satellites - eight in each of three orbital planes. Only two planes were populated by 2006 - the full complement of 24 satellites was not to be reached until 2009. This was the first launch to repopulate plane 2; planes 1 and 3 had satellites operational.