Author Topic: SpaceX Falcon 9 : BulgariaSat-1 : June 23, 2017 : UPDATES  (Read 294204 times)

Offline ChrisGebhardt

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Vehicle is in self-align

Offline Steven Pietrobon

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T-6 minutes. Back live.
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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Stage 1 and 2 heaters are closed out.

Offline ZachS09

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All tanks should now be pressurizing for strongback retraction. When we're under the 4-minute mark, based on past prelaunch countdowns, the strongback should retract 1.5 degrees away from the vehicle. Its full retraction will then occur at liftoff.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline ChrisGebhardt

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Stage 1/2 press for strongback retract.

Offline ChrisGebhardt

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MVac fuel bleed started.

Offline Steven Pietrobon

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T-5 minutes. Sat is go.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

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T-4 minutes. The strongback now retracting to its T0 position. Doesn't take that long.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline ChrisGebhardt

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MVac TVC motions complete.  TVC motions nominal.

Offline Steven Pietrobon

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T-4 minutes. Coming up to strongback retraction.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

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T-3 minutes.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline ChrisGebhardt

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Stage 1 POGO bleed verification.

Strongback retract confirmed.


Offline Steven Pietrobon

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T-3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

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T-2 minutes.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

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T-2min.

Stage 1/2 LOX close out.

F9 on internal.

Offline ZachS09

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Falcon 9 is on internal power.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline ChrisGebhardt

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Vehicle is in self-align.

Offline Space Ghost 1962

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(Glad he is shutting up - his voice is annoying.)

Offline ChrisGebhardt

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Stage 1/2 cryo helium secured.

Offline Steven Pietrobon

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T-2 minutes. Stage 2 LOX closed out.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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