On February 20, 2021 at 17:36 UTC the "Cygnus” privately owned U.S. unmanned supply spacecraft was launched from the Mid-Atlantic Regional Spaceport (MARS), a commercial space launch facility located at the southern tip of NASA's Wallops Flight Facility on Wallops Island, Virginia, USA. The spacecraft was orbited by the “Antares-230” rocket-carrier. The "Cygnus” NG-15 (the S. S. Katherine Johnson), previously known as CRS OA-15, unmanned supply spacecraft, built by U.S. space firm Orbital Sciences Corp., was orbited on its cargo resupply mission to the International Space Station. CRS means Commercial Resupply Services. The "Cygnus” NG-15 is the 15th successful flight of the Orbital ATK uncrewed resupply spacecraft Cygnus.