|A view of the International Space Station taken from Progress external cameras|
During testing, teams on the ground in the Russian Mission Control Room near Moscow commanded the Progress to back away to a distance of 500km(311 miles) from the ISS.
The Progress completed today's automated docking using the new KURS-NA rendezvous system, which uses just a single antenna, allowing four others to be removed. It is hoped that if these tests are satisfactory, then future Progress vehicles will be lighter, use less power, and possess updated electronics. This will in turn allow more cargo to be transported to the International Space Station.
Today's redocking comes just two days after NASA astronauts Rick Mastracchio and Steve Swanson successfully completed a spacewalk which lasted just over an hour and a half to replace a faulty computer outside of the station.
As for the Progress, the Expedition 39 crew will open the hatches between the craft and the station, then fill it with trash and other unwanted items no longer needed, before it undocks from the station for a final time on June 9 to burn up in the Earth's atmosphere.
This is Irish Space Blog.