Mass simulator

Certification-2 mission, the second of two launches needed to certify the rocket for NSSL missions. Originally scheduled to carry the first flight of Dream Chaser; however, due to schedule delays with Dream Chaser, ULA flew a mass simulator with experiments and demonstrations of future Centaur V technologies. Approximately 37 seconds into the launch, the nozzle on one of solid rocket boosters (SRB) fell off resulting in a shower of debris in the exhaust plume. Although the SRB continued to function for its full 90-second burn, the anomaly led to reduced, asymmetrical thrust. This caused the rocket to slightly tilt before the guidance system and main engines successfully corrected and extended their burn by roughly 20 seconds to compensate. Despite the anomaly, the rocket achieved a perfect orbital insertion.