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25

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status check

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go atlas go centaur go cyrus rex

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everyone is go

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standing by for launch after liftoff

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you'll hear the voice of united launch

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alliance's marty malinowski providing

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launch vehicle ascent data ten seconds

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nine eight seven six

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five

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four

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three

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two

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and lift off of osiris-rex

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it's seven-year mission

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to boldly go

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during the voice of marty malinowski

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the atlas has begun a pitch and yaw

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good 45

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and the atlas seconds carrying

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osiris-rex has gone supersonic

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standing by to pack pass through max q

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maximum aerodynamic pressure

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max cube if the hydra to continue to

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look good this is the point when the

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mechanical stress on the rocket reaches

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its end because of the rocket's velocity

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and resistance created by the earth's

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signatures look good

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current altitude is 14 miles downrange

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distance it's 9 miles current velocity

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488 miles per hour range track shows the

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vehicle progressing down the middle of

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in about 30 seconds

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a single solid rocket booster will be

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and booster has throttled back down it's

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next major event will be srb jettison

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and you see the solid rocket booster

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jettison

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separation looks good

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vehicle has enabled closed loop ql for

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steering

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rd-180 engine continues

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powering the atlas centaur at osiris-rex

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into space

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next major milestone will be booster

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four minutes and two seconds into flight

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has been fired that system is now

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pressurizing the flight level signatures

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current altitude 40 miles downrange

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distance 75 miles current velocity

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5988 miles per hour

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about uh one minute away from

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atlas booster engine cutoffs

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pump speeds and check the pressures

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within band

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vehicle body rates look good

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vehicles now one quarter of its lift off

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coming up on our

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and we have the gun throttling to

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new space cooldown is underway

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and begun to throttle to 4.6 gs in

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preparation for pico whose space

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and we have beco engine shutdown looks

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good

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booster engine cutoff confirmed

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after spacecraft separation for the

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we have ignition and full thrust on the

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rl10

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we're up on payload for jettison

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everything continuing normally the

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centaur engine producing 22 900 pounds

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of thrust

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and it will burn for just over eight

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our body rates look very good

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steering has been

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enabled and the payload fairing which

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was covering osiris-rex was jettisoned

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everything continuing on the timeline

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current altitude for centaur is 101

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miles range downrange distance is 471

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miles current velocity 12 589 miles per

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we do have a report from