The final launch of the Delta IV Heavy. The United Launch Alliance will launch the NROL-70 mission for the National Reconnaissance Office. This will be the final time that a Delta IV, and a Delta, in general, will fly. NROL-70 is a classified payload for the National Reconnaissance Office.

Window Opens: March 28th at 1:40PM EDT (17:40 UTC)
Window Closes: March 28th at 5:39 PM EDT (21:39 UTC)

Mission: Delta IV Heavy launch of NROL-70 for the National Reconnaissance Office
Launch Location: Space Launch Complex 37B, Cape Canaveral Space Force Station, Earth.
Target orbit: Classified but estimated to be a geosynchronous transfer orbit
Rocket configuration: 9250; Delta Common Booster Core with two Delta Common Booster Core, a 5 meter diameter Delta Cryogenic Second Stage, and no third stage. Fairing is the metallic tri-sector fairing from Titan.
Rocket trajectory: Straight east from the Cape
Stats:
· ULA's 160th launch overall and its 2nd launch of the year.
· Delta's 389th and final launch. Delta-Thor 944th and final launch. 16th and final launch of Delta IV Heavy.
· ULA's 27th launch from SLC-37B, Delta IV Heavy's 11th and final launch from SLC-37B.
· 43rd overall launch from SLC-47B.

NSF forum link: https://forum.nasaspaceflight.com/ind...

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