document: Ariane 5 launch aborted due to technical hitch BEIJING , Apirl 1 -LRB- Xinhuanet -RRB- - An Ariane rocket launch of two communications satellites was aborted Wednesday after a technical hitch at the scheduled moment of liftoff in French Guiana on Wednesday . The Ariane 5 ES V200 lifts off from the European Space Agency -LRB- ESA -RRB- launch centre in Kourou , French Guiana , February 16 , 2011 -LRB- Xinhua / Reuters FilePhoto -RRB- According to Arianespace , the Ariane 5 rocket 's Vulcain main engine ignited as scheduled at 5:45 pm EDT -LRB- 21:45 GMT -RRB- , but the checkout process during ignition detected an unspecified anomaly , shutting down the engine before the two solid-rocket boosters ignited . The 165-foot -LRB- 50-meter -RRB- tall Ariane 5 rocket 's main engine 's checkout process '' `` was not completed successfully , preventing the boosters ' ignition and thereby aborting the mission , '' '' Arianespace officials said . '' `` The Ariane 5 and its two payloads remain in a safe mode on the launch pad . '' '' The Ariane 5 rocket uses a Vulcain 2 first stage engine assisted by two solid rocket boosters to launch satellite payloads into orbit . The Vulcain 2 engine is fueled by cryogenic liquid hydrogen and liquid oxygen and is designed to burn for about 600 seconds to boost payloads into space . Jean-Yves Le Gall , Arianespace president , said it would return the rocket to the final assembly building to prepare it for another launch attempt while investigating the cause of the problem . No new launch date was immediately announced . The Ariane 5 was to launch the Yahsat Y1A and Intelsat New Dawn communications satellites .
extractive_keyphrases: technical preventing final assembly communications satellites announced french guiana checkout process launch fueled investigating beijing kourou ignition detected engine ignited scheduled problem mission president edt 545 600 seconds space rocket boosters payloads cryogenic liftoff wednesday vulcain not completed successfully ariane arianespace
abstractive_keyphrases: anomaly shutting launch aborted problem no new launch french rocket's vulcain process rocket's guiana vulcain 2 aborted wednesday european space agency launch satellite engine's technical hitch