Atlas V 411

EELV

Mission Profile

The Atlas V 411 is a two-stage American medium-lift launch vehicle featuring one solid rocket strap-on booster and a single-engine Centaur upper stage, occupying a unique asymmetric configuration between the standard 401 and 421 within the Atlas V family. Standing 58.3 m tall with a 3.8 m diameter and a liftoff mass of 375 tonnes, it generates 5,188 kN of combined liftoff thrust and can deliver 12,150 kg to low Earth orbit. First flying in April 2006 carrying the ALOS Earth observation satellite for JAXA, the 411 configuration required specialized roll control programming during ascent to manage the asymmetric thrust from the single side-mounted solid rocket motor.