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UPDATE Scrubbed Three Seconds Before Liftoff of ULA’s Launch of NROL-44 Mission

August 29, 2020

Saturday, August 29, and again, another no go …

(Cape Canaveral Air Force Station, Florida, August 29, 2020) – The launch of a United Launch Alliance Delta IV Heavy carrying the NROL-44 mission for the National Reconnaissance Office was scrubbed today due to an unexpected condition during terminal count at approximately three seconds before liftoff.

The team is currently reviewing all data and will determine the path forward. The required recycle time prior to the next launch attempt is seven days minimum.

The following are accounts from earlier this week of the other delays …

Just in regarding the launch scheduled for early Thursday is now scrubbed.

The launch of the United Launch Alliance Delta IV Heavy NROL-44 mission was scrubbed today due to an issue with a critical ground pneumatics control system. The team needs additional time to evaluate and resolve the issue.

The launch is now planned for Friday, August 28 from Space Launch Complex-37 at Cape Canaveral Air Force Station. The forecast shows an 80 percent chance of favorable weather conditions for launch. The launch time is 2:08 a.m. EDT.

Earlier today …

Everyone has been working hard to ensure that the upcoming launch of the ULA Delta IV Heavy launch carrying the NROL-44 mission for the National Reconnaissance Office will lift off on Thursday, August 27, from Space Launch Complex-37 at Cape Canaveral Air Force Station in Florida.

Wednesday’s forecast shows an 80 percent chance of favorable weather conditions for launch. The launch time is 2:12 a.m. EDT.

Launch Forecast Summary:

  • Overall probability of violating weather constraints: 20 percent
  • Primary concerns: Cumulus Cloud Rule
  • Overall probability of violating weather constraints for 24 hour delay: 20 percent
  • Primary concern: Cumulus Cloud Rule, Thick Cloud Layer Rule

Filed Under: Launch

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