NROL-71 - Delta IV-H [D-382] - Vandenberg SLC-6 - 19.01.2019, 19:10 UTC

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Gene J. Mikulka‏ @genejm29 11 мин.11 минут назад


Via .@ulalaunch A look at the typical #DeltaIVHeavy Process Flow at Space Launch Complex 6, Vandenberg Air Force Base. A Delta IV Heavy is set to carry a .@NatReconOfc payload, #NROL71 , to orbit at 11:05 AM PST (7:05 PM GMT ) today 1/19/19

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Gene J. Mikulka‏ @genejm29 6 мин.6 минут назад


Via .@ulalaunch a look at what it takes to encapsulate a payload on the #DeltaIVHeavy at Vandenberg Air Force Base. A Delta IV Heavy stands ready to send the #NROL71 payload for the .@NatReconOfc into orbit today 1/19/19 at 11:05 AM PST (7:05 PM GMT)

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01/19/2019 20:35 Stephen Clark

90 minutes until launch. Here are some statistics on tonight's mission:

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• 382nd Delta rocket launch since 1960
• 38th Delta 4 rocket mission since 2002
• 11th Delta 4-Heavy configuration to fly
• 58th, 59th and 60th main engine from RS-68 family launched
• 16th, 17th and 18th RS-68A main engine flown
• 8th Delta 4 rocket launch from Vandenberg Air Force Base
• 3rd Delta 4-Heavy launch from Vandenberg Air Force Base
• 12th classified Delta 4 for the National Reconnaissance Office
• 132nd United Launch Alliance mission since the company's formation in 2006
• 1st ULA launch in 2019
• 1st Delta 4 launch in 2019
• 2nd launch from Vandenberg Air Force Base in 2019
  

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01/19/2019 20:40 Stephen Clark

The swing arm system at Space Launch Complex-6 is being configured to launch mode at this time.

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01/19/2019 20:49 Stephen Clark

Testing of the flight termination system is reported complete by ULA's launch team.

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Tory Bruno‏Подлинная учетная запись @torybruno 8 мин. назад

Wind is creeping up. Everybody think calm thoughts. #NROL71

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01/19/2019 21:12 Stephen Clark

The launch team is now evaluating a reading from a leak detector on the port side of the Delta 4's launch table at Vandenberg Air Force Base.

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Walter Scriptunas II‏ @scriptunasphoto 10:10 - 19 янв. 2019 г.

The United Launch Alliance Delta IV Heavy rocket emerges from the Mobile Service Tower at Space Launch Complex - 6, early this morning. Launch is set for 11:05am PST, 2:05pm EST.

Спойлер

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01/19/2019 21:30 Stephen Clark

The launch team is loading tonight's trajectory file into the Delta 4's guidance computer, called the Inertial Navigation and Control Assembly. This steering profile accounts for the upper level winds measured high in the atmosphere by a series of weather balloons sent aloft during the countdown.

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ULA‏Подлинная учетная запись @ulalaunch 2 мин. назад

The current weather forecast shows 40% favorable for an on-time launch due to ground winds.

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ULA‏Подлинная учетная запись @ulalaunch 10:51 - 19 янв. 2019 г.

At customer request, #NROL71 live coverage will wrap after confirmation of payload fairing jettison, ~6 mins after liftoff #DeltaIVHeavy

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ULA‏Подлинная учетная запись @ulalaunch 11:04 - 19 янв. 2019 г.

Launch is planned to occur at 11:10 a.m. PST.

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