Three Russian navigation satellites in orbit plane 1 of the GLONASS
system were launched on 26 Dec 2004 from Baikonur by a Krunichev Proton-K
rocket (serial 410-09) with an Energiya Blok DM-2 (serial 11S861 No.
104L) upper stage. Two of the satellites are standard Uragan satellites
built by Polyot/Omsk, nos. 796 and 797. This was the 33rd launch in the GLONASS
program, and the third with an Uragan-M test flight. GLONASS is the Russian
equivalent of the GPS system.