Herschel Space ObservatoryRocket launchby ArianespaceEuropeLaunch time14 May 200913:12 UTCsuccessOrbit: SSOSerial number: V-188MissionRocketPayloadsRocket Ariane5 ECAlaunched from Guiana Space Centre, ELA-3French GuianaPayloadsNamePurposeMassCommentHerschel Space Observatory---Planck---