\n
![\"01\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/01-3.jpg\")
\nThe United Launch Alliance Atlas 5 vehicle, designated AV-062, will lift off and begin a vertical rise away from Space Launch Complex 3-East at Vandenberg.<\/p>\n
T+0:01:19.1: Mach 1 and Max Q<\/strong> T+0:04:03.1: Main Engine Cutoff<\/strong> T+0:04:09.1: Stage Separation<\/strong> T+0:04:19.0: Centaur Ignition No. 1<\/strong> T+0:04:27.1: Nose Cone Jettison<\/strong> T+0:15:36.9: Centaur Engine Cutoff No. 1<\/strong> T+0:19:15.9: Spacecraft Separation<\/strong> T+2:11:45.9: Cubesat Separation<\/strong> See earlier WorldView 4 coverage.<\/p>\n Our Atlas archive.<\/p>\n","protected":false},"excerpt":{"rendered":" This is the launch timeline to be followed by the Atlas 5 rocket\u2019s ascent into orbit from Vandenberg Air Force Base in California with the commercial WorldView 4 Earth-imaging satellite for DigitalGlobe. Launch is scheduled for Friday at 10:30 a.m. local time (1:30 p.m. EST; 1830 GMT). T+0:00:01.1: Liftoff The United Launch Alliance Atlas 5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[3222,724,3427,1806,472,750,3081,2785],"class_list":["post-15098","post","type-post","status-publish","format-standard","hentry","category-news","tag-ascent","tag-atlas-5","tag-av-062","tag-digitalglobe","tag-lockheed-martin","tag-united-launch-alliance","tag-vandenberg-air-force-base","tag-worldview-4"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/15098"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=15098"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/15098\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=15098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=15098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=15098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n![\"02\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/02-3.jpg\")
\nThe Atlas rocket achieves Mach 1 some 79 seconds into the flight, then passes through the region of maximum dynamic pressure at 94 seconds.<\/p>\n
\n![\"03\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/03-3.jpg\")
\nThe RD-180 main engine completes its firing after consuming the load of RP-1 kerosene fuel and liquid oxygen supply in the Atlas first stage.<\/p>\n
\n![\"04\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/04-3.jpg\")
\nThe 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.<\/p>\n
\n![\"05\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/05-3.jpg\")
\nThe Centaur RL10C-1 engine ignites for the longer of the two upper stage firings. This burn will inject the Centaur stage and WorldView 4 spacecraft into polar orbit.<\/p>\n
\n![\"06\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/06-3.jpg\")
\nThe two-piece, 14-foot-diameter payload fairing that protected the WorldView 4 spacecraft during the atmospheric ascent is separated to reveal the satellite to space.<\/p>\n
\n![\"07\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/07-3.jpg\")
\nThe Centaur engine shuts down after arriving in the planned sun-synchronous orbit of 379 by 390 miles tilted 97.96 degrees to the equator.<\/p>\n
\n![\"08\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/08-3.jpg\")
\nThe high-resolution WorldView 4 imaging satellite is released into orbit from the Centaur upper stage to complete the primary objectives of the AV-062 launch.<\/p>\n
\n![\"09\"](\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2016\/09\/09-3.jpg\")
\nSeven tiny Cubesats being launched through a National Reconnaissance Office-sponsored rideshare, called the ENTERPRISE mission, are ejected from carriers mounted near the RL10 engine over a period of 14 minutes. The Centaur then executes another burn to escape Earth and enter solar orbit.<\/p>\n