Author Topic: Delta IV-Heavy - NROL-91 - Vandenberg SLC-6 - 24 September 2022 (22:25 UTC)  (Read 30770 times)

Offline Vahe231991

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https://twitter.com/ulalaunch/status/1572737660178800642

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Meteorologists predict a 90% chance of favorable weather for the #DeltaIVHeavy launch of #NROL91 at 2:53pmPDT (5:53pmEDT; 2153UTC) on Sat. from Vandenberg Space Force Base, CA.

Live blog begins at 5:15amPDT and webcast starts 20 minutes before liftoff: bit.ly/div_nrol91

Offline Rondaz

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122nd UP!

Saturday
2153 UTC / 17:53 EDT / 6:53 JST
Delta IV Heavy
NROL-91
🇺🇸
LEO

https://twitter.com/Nextlaunch/status/1572893368300236800

Online FutureSpaceTourist

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https://twitter.com/ulalaunch/status/1573034541555777536

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Attention West Coast! Wonder when you will see the #DeltaIVHeavy near you? Our visibility graphic shows when the rocket will rise into view during the launch of #NROL91.

Offline Rondaz

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#DeltaIVHeavy Fun Facts:

Height of #DeltaIVHeavy: 233 feet (71 meters)

Fuel onboard: 470,000 gallons of liquid hydrogen and liquid oxygen

Mass at liftoff: 1.6 million pounds (725,750 kg)

Thrust at liftoff: 2.1 million pounds (9.4 mega-Newtons)

https://twitter.com/ulalaunch/status/1572983083024158721

Offline Steven Pietrobon

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Here is my attempt at making a pdf version of the online press kit,
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Rondaz

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Upcoming launch of #NROL91 mission via #ULA's #DeltaIVHeavy vehicle..

https://twitter.com/_rykllan/status/1573234159027621889

Offline ace5

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https://twitter.com/ulalaunch/status/1573362219823558656

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Leadership from ULA, @NatReconOfc and @SpaceForceDOD completed the Launch Readiness Review for the #DeltaIVHeavy #NROL91 mission giving a unanimous “GO" for tomorrow's launch at 2:53pmPDT (5:53pmEDT; 2153UTC). Weather is 90% favorable.

Launch blog: bit.ly/div_nrol91

Offline Vahe231991

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When the NROL-91 is launched for good, the US Space Force could potentially issue badges to ULA officials and employees featuring a lightning bolt and a hammer, given that the classic Delta SLVs were derived from the Thor ballistic missile (itself named for the Norse god of thunder).

Offline VLN

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SpaceIntel101 graphic
The graphic says 98deg sun-sync orbit, but that's almost certainly wrong. It conflicts with the NOTAMs from 2 agencies, and with the video released by ULA.

Offline Jim

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When the NROL-91 is launched for good, the US Space Force could potentially issue badges to ULA officials and employees featuring a lightning bolt and a hammer, given that the classic Delta SLVs were derived from the Thor ballistic missile (itself named for the Norse god of thunder).

No, they don't issue badges with logos.

Online FutureSpaceTourist

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https://twitter.com/torybruno/status/1573422960454557709

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Just your average 10M pound building rolling back from a 30 story tall rocket. No big deal… #DeltaIVHeavy #NROL91 #ToryTimelapse @NatReconOfc

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https://twitter.com/w00ki33/status/1573519050776289280

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The final west coast launch of the Delta IV Heavy is upon us. The rocket is prepped and ready for its NROL-91 mission tomorrow, 9/24, with window opening at 2:53 pm PDT.

@NASASpaceflight

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https://twitter.com/thejackbeyer/status/1573474641510744064

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I’m at Vandenberg SFB’s legendary SLC-6 for remote camera setup - maybe for the last time. The final west coast Delta IV Heavy is slated to launch tomorrow on the NROL-91 mission. @NASASpaceflight

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https://twitter.com/w00ki33/status/1573579288342777857

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Space Launch Complex 6, Vandenberg SFB. #NROL91

@NASASpaceflight

Offline Rondaz

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Rollback timelapse:

https://twitter.com/ulalaunch/status/1573647240056430594

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Good morning from Vandenberg Space Force Base in California where our live #DeltaIVHeavy blog has started and will take you all the way to the 2:53pmPDT (5:53pmEDT; 2153 UTC) launch time! The live launch webcast begins 20 minutes before liftoff: bit.ly/div_NROL91

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https://twitter.com/ulalaunch/status/1573649947106414593

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The 9.5-hour countdown is starting at Vandenberg Space Force Base in California for #DeltaIVHeavy to launch #NROL91 at 2:53pmPDT (5:53pmEDT; 2153 UTC). This is ULA's 153rd mission, our 96th for U.S. national security and 32nd for the NRO. Follow along: bit.ly/div_NROL91

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https://twitter.com/ulalaunch/status/1573656123973976064

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#DeltaIVHeavy is powering up for launch and preps are underway at Space Launch Complex-6 for retraction of the Mobile Service Tower. The forecast for the 2:53pmPDT (5:53pmEDT; 2153 UTC) launch continues to indicate a 90% chance of acceptable weather. bit.ly/div_nrol91

 

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