On April 20, 2014 at 14:06 UTC the private U.S. unmanned supply spacecraft, the Dragon (CRS-3 flight), was successfully docked to the International Space Station. The linkup operation was carried out by astronauts Koichi Wakata (Japan) with the help of the giant 17-meter Canadarm that had earlier (at 11:14 UTC) grabbed the Dragon capsule. The Dragon spacecraft was maneuvered into position and attached to a berthing port on the space station's Harmony module. The unmanned spacecraft delivered about 2,268 kilograms of supplies for the space station crew and for experiments being conducted aboard the ISS.
On April 18, 2014 at 19:25 UTC the "Falcon 9R” rocket-carrier was launched from the Cape Canaveral US Air Force Station in Florida. The launch was performed by the "SpaceX” private company supported by the 45th Space Wing of US Air Force. US private company SpaceX launched its "Dragon” (CRS-3 flight) unmanned spacecraft on a third cargo resupply mission to the International Space Station. CRS means Commercial Resupply Services. The Dragon spacecraft is carrying about 2,268 kilograms of supplies for the space station crew and for experiments being conducted aboard the ISS. It is the 5th flight of a “Dragon” spacecraft and the 4th flight of a “Dragon” to the ISS.
On April 18, 2014 the “Progress M-22M” unmanned supply spacecraft were deorbiting. Non-burnt fragments of the spacecraft sank in the South part of the Pacific at 15:46 UTC. Since April 7, 2014 the spacecraft was in a controlled autonomous flight to conduct a scientific experiment "Radar-Progress”. The purpose of the experiment was to determine the spatial and temporal dependence of the density, temperature, ionic composition of local inhomogeneities in the ionosphere resulting from the on-board liquid rocket engines.