December 11, 2018

Live coverage: Delta 4-Heavy countdown and launch journal


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(Launch webcast begins at 1:31 p.m. EDT)

Mission Status Center

Live coverage of the United Launch Alliance Delta 4-Heavy rocket on the NROL-37 mission for the National Reconnaissance Office. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.

Launch preview story | Mission profile animation


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