ULA DELTA IV HEAVY LAUNCH OF NROL-68, June 22, 2023, CCSFS, 3:25 am ET (webcast by ULA)

Update, June 21: The launch has been postponed “due to an issue with a ground systems pneumatic valve.”  They will try again tomorrow, June 22, at 3:25 am ET.

The launch of a ULA #DeltaIVHeavy carrying the #NROL68 mission for the @NatReconOfc is delayed due to an issue with a ground systems pneumatic valve. The launch is now planned for Thur., June 22 at 3:25 a.m. EDT. https://t.co/jIsovi8hd3

— ULA (@ulalaunch) June 21, 2023

Original Entry: The United Launch Alliance will launch the NROL-68 classified mission for the National Reconnaisance Office (NRO) on June 21, 2023 from Cape Canaveral Space Force Station (CCSFS) at 3:29 am ET.

ULA will webcast the launch on its website beginning at 3:09 am ET, 20 minutes before launch.

This is the next-to-last launch of the Delta IV rocket.