Colonel General Vladimir Popovkin, commander of Russia's Space Forces, said earlier the Angara flight tests were scheduled for the fourth quarter of 2010.
He also said the booster would be launched in the first quarter of 2011.
The general added that all Angara works "have been coordinated and let us confidently say the flight tests will begin as scheduled".
Popovkin said all the launch vehicle ground facilities were to be complete in July-August 2010.
He also said all-round tests, preliminary tests, and a half-year long adjustment works to follow were scheduled for September 2010.
Angara is a booster with light-weight, medium, and heavy-lift derivatives. The maximum launch weight is 773 metric tons, payload up to 24.5 tons, orbit altitude 200km.
Angara is designed to complement, and eventually replace, the existing line of Rokot and Proton boosters.
Russian President Vladimir Putin has dismissed the former head of the Khrunichev State Research and Production Center, and the constructor of Angara, following a number of launch failures compromising the country's space program.
