. "2005-03-11Z"^^ . . "57"^^ . "2006-04-20Z"^^ . "Active" . . "Atlas V is an active expendable launch system in the Atlas rocket family. Atlas V was formerly operated by Lockheed Martin, and is now operated by the Lockheed Martin-Boeing joint venture United Launch Alliance. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage."@en . . "2"^^ . . . "2007-10-10Z"^^ . "3.345e+08"^^ . "2010-04-22Z"^^ . "1"^^ . "501"^^ . . "2011-11-26Z"^^ . "401"^^ . "401"^^ . "501"^^ . "2006-01-19Z"^^ . "2002-08-21Z"^^ . . "2010-08-14Z"^^ . "58.3"^^ . "56"^^ . "2003-07-17Z"^^ . "3.81"^^ . .