A United Launch Alliance Atlas V rocket launched two prototype satellites for Amazon's Project Kuiper broadband constellation from Florida's Cape Canaveral Space Force Station. See rocket camera footage of the launch here.
Credit: ULA
Credit: ULA
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TechTranscript
00:00 We have ignition and liftoff of the United Launch Alliance Atlas V rocket carrying the
00:09 proto-flight mission for Amazon's Project Kuiper.
00:13 Program is in.
00:31 Flight rates look good, acceleration looks good.
00:41 Maneuver is expected.
01:03 One minute in, everything looking good.
01:08 Vehicle is now four miles in altitude, point three miles downrange.
01:19 Traveling at 1,250 miles per hour.
01:22 Everything looking good.
01:26 Mach one.
01:28 Vehicle is now supersonic.
01:32 Max Q.
01:34 Coming up on our first throttle segment.
01:43 And our first throttle segment is engaged.
01:55 Remember, looking forward to my closed-loop updates.
02:19 Ignition is in, everything looking good.
02:31 Coming up on our next throttle phase, we'll be limiting the vehicle acceleration to 2.5 Gs for payload-bearing jets.
02:45 Lifting acceleration at 2.5 Gs, everything looking good.
02:49 Inside of two minutes to be go.
03:15 Everything looking good.
03:18 Mission operating as expected, smooth body rates.
03:32 And vehicle has passed through the Karman line.
03:37 We have exited the Earth's atmosphere.
03:39 Coming up on fairing jet, we've had fairing jettison and seal-off deck jettison.
03:44 Everything looks good, nice and smooth.
03:45 We are throttling up.
03:48 Inside of one minute to be go.
03:54 And we are less than a quarter of our lift-off weight at this time.
03:59 And starting our 4G throttling, our G-limiting phase of the mission.
04:07 And one minute to be go.
04:26 And boost phase chill has been in progress.
04:28 Engine temperature is reducing as expected.
04:35 Coming up on BECO, and we have cutoff.
04:40 Everything looks good.