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  • 3 years ago
SpaceX launched 22 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Base in Florida.

The first stage for the rocket landed on the A Shortfall of Gravitas droneship in the Atlantic Ocean shortly after separation.

Credit: SpaceX

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Transcript
00:00 T-10, 9, 8, 7, 6, 5, 4, 3, 2, 1, engines full power, and liftoff of Starlink. Go Falcon, go Starlink.
00:18 Stage 1 propulsion is nominal.
00:28 [engine noise]
00:41 At T-plus 30 seconds, F9 has successfully lifted off from Slig 40 at Cape Canaveral, Florida, at 1201 a.m. Eastern Time.
00:50 The next major milestone coming up is Max Q, which is when the vehicle experiences the greatest amount of external stress as it ascends through the Earth's atmosphere.
00:58 [engine noise]
01:12 Vehicle is supersonic.
01:14 Just heard that Falcon 9 is supersonic, which means it is now traveling faster than the speed of sound.
01:22 Max Q.
01:24 There you just heard that call from Max Q, which again is when the rocket experiences the largest amount of external stress.
01:31 [engine noise]
01:41 We're now about one minute away from a series of key back-to-back events.
01:45 There's MECO, or main engine cutoff, stage separation, SES 1, or second engine start 1, and then fairing separation.
01:52 MECO, or main engine cutoff, is when all nine of the Merlin engines on the first stage shut down.
01:57 Stage separation is when the first and second stages separate from one another.
02:01 SES 1, or second engine start 1, is where we light the Merlin vacuum engine on the second stage.
02:06 And then it's followed by fairing separation, which is when the two fairing halves separate and fall away from the second stage.
02:12 So let's keep an eye out for those events, as they're going to happen pretty quickly back-to-back.
02:16 [engine noise]
02:41 Main engine cutoff.
02:45 Stage separation confirmed.
02:51 And vac ignition.
02:54 So as you just saw and heard over the nets, we had successful MECO, stage separation, and SES 1.
03:00 We're coming up on fairing separation from the second stage in just a few seconds.
03:09 You can see two of the grid fins on the left-hand side of your screen. Those are deploying on stage 1.
03:22 Fairing separation confirmed.
03:26 Both of the fairing halves that supported today's mission are flying for the second time.
03:31 And we'll be attempting to recover both fairing halves using our recovery vessel, Bob.
03:36 [engine noise]
04:01 So we'll have intermittent views of stage 1, but we do have a great view of stage 2.
04:06 So currently the first stage is on its way back to Earth towards our drone ship, a shortfall of Gravitas.
04:11 And that EMVEC engine that's attached to the second stage is continuing its burn, which will last another few minutes.
04:36 Acquisition of signal, Bermuda.
04:45 Nominal trajectory.
05:01 Designed and manufactured by SpaceX, Starlink is the world's largest satellite internet constellation.
05:06 Starlink satellites operate in low Earth orbit, or LEO, which enables the delivery of high-speed, low-latency internet
05:13 to people living in remote and rural locations around the globe.
05:16 Starlink is currently live in 62 countries and 78 markets around the world.
05:41 As I mentioned earlier, today's Starlink mission marks SpaceX's 50th mission just this year and 249th mission overall.
05:49 Coming up next in the mission is the entry burn on the first stage,
05:52 which is the first of two burns it will go through in preparation for landing.
06:12 [ Silence ]
06:25 Stage 1 entry burn startup.
06:27 Stage 1 FTS is safe.
06:30 There's that call out for stage 1 entry burn.
06:33 The booster has reignited engines 1, 5, and 9 to help it slow down for atmospheric reentry.
06:44 Stage 1 entry burn shutdown.
06:47 And there you just saw and heard that call out that entry burn on the first stage has now completed.
06:54 Stage 2 FTS is safe.
07:23 If you take a look at the bottom left-hand side of your screen, you can see that stage 1 is continuing to slow down,
07:29 whereas on the right-hand side, you can see that stage 2 continues to increase speed.
07:41 Stage 1 transonic.
07:43 There's that call out that the first stage is transonic, which means it's traveling near the speed of sound.
07:54 Coming up in a few seconds will be the landing burn on stage 1 before it touches down on our droneship, a shortfall of Gravitas.
08:15 Stage 1 landing burn.
08:17 Expected loss of signal, Cape J6 and PPF.
08:30 Stage 1 landing leg deploy.
08:41 Stage 1 landing burn.
08:44 This Falcon 9 first stage has now successfully launched and landed for its 15th time.
08:49 Now we're coming up on second engine cutoff in a couple of seconds.
08:54 And back shutdown.
09:01 And there you just heard we had Seco 1, and now we are waiting for confirmation of good orbit.
09:30 [ Silence ]
09:45 [ Inaudible ]
09:47 There's that call out we were waiting for, confirmation of good orbit.
09:51 Expected loss of signal, Bermuda.
09:53 Today's landing marks our 210th overall landing of an orbital class rocket, including Falcon 9 and Falcon Heavy missions.
09:59 And with confirmation of successful first stage landing and second engine cutoff, that wraps up our coverage for now.
10:05 Be sure to check out our social media for confirmation of Starlink deployment.
10:08 Thanks for watching, and we'll see you next time.

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