Author Topic: Atlas V 401 - Cygnus CRS OA-7 - April 18, 2017 - Launch  (Read 82460 times)

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #220 on: 04/18/2017 01:42 PM »
Atlas LOX load at 50%.

Online FutureSpaceTourist

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #221 on: 04/18/2017 01:44 PM »
Quote
DanSpace77‏ @DanSpace77 3m3 minutes ago

Today's #OA7 launch will be George Diller's final call. His contributions will carry on with the likes of King & Navias. #ThankYouGeorge 🚀

https://twitter.com/DanSpace77/status/854328752905605120

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #222 on: 04/18/2017 01:44 PM »
Centaur LH2 tanking has begun.

Offline ZachS09

As seen from the static shot, liquid oxygen is now beginning to vent from the CCB as the tanks continue to be filled.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #224 on: 04/18/2017 01:46 PM »
Atlas LOX pump sensor not working properly.  Anomaly team being convened.

Offline ZachS09

As reported by ChrisGebhardt, there's a CCB sensor that is not working right now.

Whether this results in a delay or not, we'll find out soon.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #226 on: 04/18/2017 01:50 PM »
Atlas LOX depletion sensors are getting unusual spikes now.   IFS confirms this is "nominal".  Teams will "keep an eye on this."

Offline ZachS09

L-1 hour, 20 minutes.

9 minutes until the NASA TV coverage starts.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline Steven Pietrobon

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #228 on: 04/18/2017 01:51 PM »
L-1 hour 20 minutes. Getting some venting from the top of the first stage.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #229 on: 04/18/2017 01:51 PM »
Atlas LOX load now at 70%.

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #230 on: 04/18/2017 01:52 PM »
Centaur LH2 load at 20%

Offline ZachS09

Static shots are over.

Just switched to the pre-coverage "wait" screen.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline Steven Pietrobon

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #232 on: 04/18/2017 01:53 PM »
Live launch coverage starting soon.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #233 on: 04/18/2017 01:53 PM »
Centaur LH2 at 30%

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #234 on: 04/18/2017 01:54 PM »
Centaur LH2 at 40% now.

Offline ZachS09

5 more minutes until the coverage starts.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #236 on: 04/18/2017 01:55 PM »
Chilldown pipe "looks like there's more LOX coming out of vent than normal". - FD loop.

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #237 on: 04/18/2017 01:57 PM »
Prop-1 reports LOX leakage out of chilldown line.  Another anomaly team has been convened to provide a recommendation.

Offline ChrisGebhardt

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Re: Atlas V 401 - Cygnus CRS OA-7 - NET April 18 2017 - Launch
« Reply #238 on: 04/18/2017 01:59 PM »
Centaur LH2 at 70%.

Offline ZachS09

Live from Cape Canaveral Air Force Station, NASA TV is proud to present coverage of the launch of AV-070 carrying the 7th CRS Cygnus spacecraft to the International Space Station.

Today's PAO is, for the last time, George Diller, whose launch log spans from May 1989 to today.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

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