Cygnus NG-12 (CRS-12), ELaNa 25A, +... – Antares-230+ – MARS LP-0A – 02.11.2019, 13:59:47 UTC

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 Spaceflight Now‏ @SpaceflightNow 1 мин. назад

The launch weather officer reports ideal conditions on a chilly morning on Virginia's Eastern Shore for liftoff of Northrop Grumman's Antares rocket at 9:59am EDT (1359 GMT). There is a 100 percent chance of acceptable weather at launch time.

WATCH LIVE: https://spaceflightnow.com/2019/11/02/cygnus-ng-12-mission-status-center/ ...

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 Chris G - NSF‏ @ChrisG_NSF 4 мин. назад

Opening of the window has adjusted by one second. Launch time now targeting 09:59:47 EDT (1359:47 UTC).
#NASA #Antares #Cygnus #NG12 @northropgrumman

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Spaceflight Now‏ @SpaceflightNow 50 сек. назад

The Antares launch team is "go" to begin loading liquid propellants into the rocket's first stage. Liftoff remains set for 9:59am EDT (1359 GMT) from Wallops Island, Virginia.

WATCH LIVE: https://spaceflightnow.com/2019/11/02/cygnus-ng-12-mission-status-center/ ...

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Фу-у-уу...

Chris G - NSF‏ @ChrisG_NSF 1 мин. назад

A LOX plug didn't pull away from Antares.  They are going to pull the entire TEL back to get the plug out.
#NG12 #Cygnus #Antares #NASA @northropgrumman


1 мин. назад

And it worked!

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11/02/2019 15:46 Stephen Clark

Low-flow loading of RP-1 kerosene into the Antares rocket's first stage is underway, and chilldown conditioning of the liquid oxygen system has started.

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 John Kraus  :f09f9a80:‏ @johnkrausphotos 1 ч. назад

Oh boy... This morning's sunrise was beautiful!  We are just about two hours away from the launch of @NorthropGrumman's NG-12 mission to resupply the International @Space_Station. The Antares rocket is scheduled to lift off at 9:59 a.m.

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11/02/2019 16:04 Stephen Clark

Low-flow loading of liquid oxygen into the first stage has begun, the launch team confirms.

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 Chris G - NSF‏ @ChrisG_NSF 22 сек. назад

Antares' Guidance Navigation & Control (GNC) system is being calibrated for launch.

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Spaceflight Now‏ @SpaceflightNow 3 мин. назад

Today's launch will mark the 11th flight of an Antares rocket since 2013, and the first in the Antares 230+ configuration with RD-181 engines at full thrust through most of the first stage burn. See a timeline of the 8-minute, 38-second launch sequence: https://spaceflightnow.com/2019/11/02/antares-ng-12-launch-timeline/ ...

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 Chris G - NSF‏ @ChrisG_NSF 49 сек. назад

Flight trajectory 3 is the selected flight profile for today, and it is being loaded into Antares' flight computer now.

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 Nanoracks‏ @NanoRacks 2 ч. назад

We have 12 #CubeSats on the #NG12 launch - and we're so happy to have five of them come from the Undergraduate Student Instrument Project (USIP)! Congratulations to all of the students, and thanks to all who are joining us this morning at #NG12!
#ISS

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11/02/2019 16:15 Stephen Clark

45 minutes until liftoff. The Cygnus spacecraft on this flight is carrying 3,705 kilograms, or 8,168 pounds, of supplies to the International Space Station. This is the ninth flight of the enlarged Cygnus pressurized cargo module from Thales Alenia Space, providing 25 percent more interior volume for supplies. The spacecraft measures about 20 feet tall, and the pressurized cargo module has a volume of about 27 cubic meters, or 950 cubic feet.

Here are some statistics on today's launch:

[/li]
• 11th Antares rocket launch
  
• 1st launch of the Antares 230+ configuration
  
• 17th orbital launch from the Mid-Atlantic Regional Spaceport
  
• 13th launch of a Cygnus spacecraft
  
• 2nd orbital launch from Wallops in 2019
  
• 17th orbital launch from the United States in 2019
  
• 76th global orbital launch attempt in 2019
  

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11/02/2019 16:19 Stephen Clark

The Wallops range is "green" for toxic and debris rules. These rules ensure debris and toxic vapors from the launcher do not spread over populated areas in the event of an accident.

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 Chris G - NSF‏ @ChrisG_NSF 1 мин. назад

Antares telemetry is being received in the Launch Control Center, and all telemetry is verified "good".

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 Chris G - NSF‏ @ChrisG_NSF 2 мин. назад

Everyone is GO for launch.  No issues on rocket or range. Teams confirm all RCC abort icons are active in case they are needed today; of course, we hope to never have to use those.

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 Chris G - NSF‏ @ChrisG_NSF 43 сек. назад

Flight Termination System has been powered on and tested.  It is ready in case it is needed during flight today.

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