Atlas V NROL 38

United Launch Alliance Atlas V launched a classified payload for the National Reconnaissance Office on June 20th, 2012 at 8:28 AM EDT. The vehicle flew in the 401 configuration with a 4 meter diameter payload fairing, no solid rocket motor boosters and one RL-10 engine on the Centuar upper stage. This launch also marked the 50th launch of a USAF EELV.