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ULA launch of NRO satellite on hold after Delta 4 Heavy hot fire abort

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The launch of NROL-44 was aborted three seconds earlier than the Delta four Heavy was to elevate off from House Launch Advanced-37 at Cape Canaveral

WASHINGTON — A United Launch Alliance Delta four Heavy rocket carrying a Nationwide Reconnaissance Workplace labeled spy satellite tv for pc stays on the bottom after a mission abort Aug. 29 throughout the ignition sequence earlier than the deliberate three:28 a.m. Jap liftoff.

The launch of NROL-44 was aborted three seconds earlier than the rocket was to elevate off from House Launch Advanced-37 at Cape Canaveral Air Drive Station in Florida.

The automated abort was triggered by a scorching hearth after the Delta four Heavy’s three engines appeared to ignite however then shut off. ULA CEO Tory Bruno stated on Twitter that the trigger “seems to have been within the floor system.” He stated the abort system “functioned as meant to guard the car and payload.”

ULA stated in a press release it’s “reviewing all knowledge and can decide the trail ahead.” One other launch try received’t occur for a minimum of seven days.

This was the third launch try in as many days after two scrubs — one on Aug. 26 because of buyer request and one on Aug. 27 ensuing from a technical downside with the bottom pneumatics management system.

The Aug. 29 launch initially had been scheduled at 2:04 a.m. however was delayed by a thermal anomaly because of a decrease than anticipated temperature in one of many rocket’s compartments.


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