On April 19, 2012 at 11:04 UTC the Progress M-14M unmanned supply spacecraft was undocked from the Russian "Pirs” module of the International Space Station.
After a series of experiments in physics it will be de-orbited and sunk in a non-navigational area in the Pacific Ocean. The space freighter will conduct the nine-day Radar-Progress experiment, aimed at defining the physical characteristics of the ionosphere environment around the spacecraft, caused by the operations of its liquid propellant engines.
With a record of more than 130 launches since 1978 and only one failure, Progress-family supply space vehicles remain the backbone of the Russian space cargo fleet. In addition to their main mission as cargo spacecraft, they are used to adjust the ISS's orbit and conduct scientific experiments.