Yubileiny
Yubileiny (Russian: Юбиле́йный, lit. Jubilee) is an educational Russian satellite built by NPO PM[1] to commemorate the 50th anniversary of the launch of Sputnik 1, the first artificial satellite to be placed into Earth orbit. The satellite was launched on 23 May 2008 aboard a Rokot class rocket from the LC-133 launch facility at the Plesetsk Cosmodrome, after being delayed since the end of 2007. It was a secondary payload accompanying a cluster of three Gonets communication satellites, and utilised the excess capacity of the carrier.[2]
The satellite mission was to broadcast audio and video about the Soviet and Russian space programmes, as well as to imitate the beeping call signals of Sputnik 1.[3] These signals are intended for being receipted by amateur radio enthusiasts.