[4K] SLO-MO Delta IV Heavy emerges from launch fireball (NROL-71)

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Launch date: January 19, 2019
Launch site: SLC-6, Vandenberg Air Force Base, California
Destination: (classified)
A United Launch Alliance Delta 4-Heavy rocket launched a classified spy satellite cargo for the U.S. National Reconnaissance Office.
The largest of the Delta 4 family, the Heavy version features three Common Booster Cores mounted together to form a triple-body rocket.

Delta IV Heavy specs
~~~~~~~~~~~~~~
Manufacturer: United Launch Alliance
Country of Origin: United States
Cost per launch: $350 million (2018)
Height: 72 m (236 ft)
Diameter: 5 m (16 ft)
Width: 15 m (49 ft)
Mass: 733,000 kg (1,616,000 lb)
Stages: 2+
Max Payload to LEO: 28,790 kg (63,470 lb)
Max Payload to GTO: 14,220 kg (31,350 lb)

First Stage + 2x Boosters specs (per each)
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Height: 40.8 m (134 ft)
Diameter: 5.1 m (17 ft)
Gross mass: 226,400 kg (499,100 lb)
Propellant mass: 200,400 kg (441,800 lb)
Engines: 1 RS-68A
Thrust: 3,140 kN (710,000 lbf)
Specific impulse at sea level: 360 s (3.5 km/s)
Specific impulse in vacuum: 412 s (4.04 km/s)
Fuel: LH2 / LOX (liquid hydrogen / liquid oxygen)

Second Stage specs
~~~~~~~~~~~~~~
Height: 13.7 m (45 ft)
Diameter: 5.1 m (17 ft)
Gross mass: 30,700 kg (67,700 lb)
Propellant mass: 27,220 kg (60,010 lb)
Engines: 1 RL10-B-2
Thrust: 110 kN (25,000 lbf)
Specific impulse: 462 s (4.53 km/s)
Fuel: LH2 / LOX (liquid hydrogen / liquid oxygen)

Stabilization and slow-motion processing by Raw Space. Source video courtesy of ULA.

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