Sfera (satellite)
Sfera is a small passive satellite deployed during a spacewalk from the ISS in August 2012.Description
Also called the Vektor-T calibration sphere, the Sfera satellite is used to determine the density of the upper atmosphere by measuring how much drag occurs when the satellite passes through it.
TEKh-44 is a shiny sphere 53 cm across weighing 14 kg.Re-entry
It re-entered the atmosphere in late November 2012.