Live coverage of the countdown and launch of an Atlas 5 rocket with the Landsat 9 Earth observation satellite for NASA and the U.S. Geological Survey. Text updates will appear automatically below. Follow us on Twitter.

United Launch Alliance’s live launch broadcast begins at 1:11 p.m. EDT (1711 GMT) Tuesday, May 18.

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Source: https://spaceflightnow.com/2021/09/27/live-coverage-atlas-5-rocket-set-for-launch-from-vandenberg-space-force-base/