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NROL-91 LAUNCH (FINAL DELTA IVH FROM VANDENBERG), Sept 24, 2022, Vandenberg SFB, CA, 5:53 pm ET

(webcast by ULA)

Update, September 18:  ULA currently shows the launch time as 5:53 pm ET.  ULA will webcast the launch on its website.

Original Entry: The U.S. Space Force and the United Launch Alliance (ULA) will launch the NROL-91 mission for the National Reconnaisance Office from Vandenberg Space Force Base, CA on September 24, 2022.  NROL-91 is a national security mission.

The launch window is open from 1:50-4:12 pm Pacific Time (4:50-7:12 pm Eastern).

This is the last launch of ULA’s Delta IV Heavy from Vandenberg. ULA is on the cusp of transitioning to the new Vulcan family of rockets, which will replace both Atlas V and Delta IV.


September 24, 2022
5:30 pm - 11:00 pm