|The Russian-designed RD-180 main engine is ignited and undergoes checkout prior to launch.
|The Atlas 5 vehicle, designated AV-085, lifts off and begins a vertical rise away from Space Launch Complex 41 at Cape Canaveral Air Force Station, Fla.
|Begin Pitch/Roll/Yaw Maneuver
|The 188-foot-tall Atlas 5 begins to maneuver itself on the proper trajectory east of Complex 41 on an azimuth of 94 degrees.
|The Atlas 5 rocket passes the region of flight known as maximum dynamic pressure, or Max-Q.
|Main Engine Cutoff
|The RD-180 main engine completes its firing after consuming its kerosene and liquid oxygen fuel supply in the Atlas first stage.
|The Common Core Booster first stage of the Atlas 5 rocket separates from the Centaur upper stage. Over the next few seconds, the Centaur engine liquid hydrogen and liquid oxygen systems are readied for ignition.
|Centaur Ignition 1
|The Centaur RL10 engine ignites for the longer of the two upper stage firings. This burn will inject the Centaur stage and MAVEN spacecraft into a parking orbit.
|Nose Cone Jettison
|The payload fairing that protected the MAVEN spacecraft during the climb through the atmosphere is no longer needed and is separated.
|Centaur Cutoff 1
|The Centaur engine shuts down after arriving in a planned parking orbit. The vehicle enters a lengthy coast period lasting nearly 28 minutes before arriving at the required location in space for the second burn.
|Centaur Ignition 2
|The Centaur re-ignites to propel the payload into the desired Earth escape trajectory from the parking achieved earlier in the launch sequence.
|Centaur Cutoff 2
|At the conclusion of its second firing, the Centaur will have delivered the MAVEN spacecraft on a hyperbolic escape trajectory toward Mars.
|NASA's Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft is released from the Centaur upper stage to complete the AV-038 launch.