00:00T-minus 10, 9, 8, 7, 6, 5, 4, 3, 2, 1.
00:13Ignition and liftoff of Falcon 9.
00:17Go SpaceX, go SD.
00:24Vehicle is pitching downrange.
00:30And Windy Chamber pressure nominal.
00:45At T plus 30 seconds and counting,
00:47Falcon 9 has successfully lift off from SLIC-4E
00:50at Vandenberg Space Force Base in California.
00:52In case you're just joining us,
00:54this is the Space Development Agency's Tranche-1 mission,
00:57and we had an on-time liftoff today at 7.12 a.m. Pacific Time.
01:00Power and telemetry nominal.
01:02Coming up next, the vehicle will be passing through Max-Q,
01:04which is the point in the mission profile where the vehicle...
01:06Vehicle is supersonic.
01:08...where the vehicle experiences the greatest amount of aerodynamic pressure.
01:17Max-Q.
01:19Falcon 9 has now passed through the period of Max-Q,
01:22when the vehicle experiences the greatest amount of aerodynamic stress.
01:25Coming up next, we'll have several events happening in quick succession,
01:29starting with MECO, followed by StageSep, and SES-1.
01:32Main engine cutoff, or MECO, is where all nine Merlin 1D engines
01:37will shut down to slow the vehicle down in preparation for stage separation,
01:40which is where the first stage separates from the second stage.
01:44Following this, the MVAC engine on the second stage will light,
01:49which is called out as SES-1, or Second Engine Start 1.
01:54This engine burn, lasting several minutes,
01:57will propel the second stage and the payload to orbit.
02:00In addition to these major events, the fairing halves will separate about 30 seconds after SES-1.
02:05As a reminder, we will not have any Falcon 9 second stage or payload views at the request of our customer.
02:11We're about 10 seconds away from MECO now.
02:39Main engine cutoff. Stage separation confirmed.
03:02MECO start up.
03:05And as you just heard and saw, that series of back-to-back call outs there,
03:10which again were MECO, StageSep, and SES-1.
03:14Coming up shortly, we should hear a call out for fairing separation,
03:17but as a reminder, we will not be showing it on screen.
03:20Both payload fairing halves supporting today's mission are also flight proven,
03:24with both halves flying for their third time.
03:43Fairing separation confirmed.
03:45And there, you just heard that confirmation.
03:48We will be attempting to retrieve these fairing halves again today,
03:51once they fall back to Earth.
03:52With our recovery vessel, go beyond.
03:54We are currently at 3 minutes and 48 seconds into today's mission.
04:06Now the next major milestone, coming up in about 3 minutes from now,
04:09will be the entry burn of the Falcon 9 booster as it continues on its journey towards our drone ship,
04:13Of Course I Still Love You, stationed in the Pacific.
04:17To start the entry burn, we will relight three M1D engines,
04:21which is similar to pumping the brakes to slow down the vehicle as it passes back into the Earth's atmosphere.
04:26We need to slow down the vehicle to reduce reentry forces,
04:29which then helps us to recover and reuse the first stage.
04:32Now let's talk a little bit about the payload, even though we can't show it to you today.
04:39As an integral part of the U.S. Space Force,
04:41the SDA is launching the proliferated warfighter space architecture into low Earth orbit
04:46to enhance warfighting responsiveness, resilience, and survivability.
04:50SDA is delivering next-generation capability to the joint warfighter
04:53in support of terrestrial missions through development, fielding, and operation of this network.
04:58SDA's mesh network of optically connected satellites is primarily focused on tactical data delivery
05:05to the warfighter at the edge, tracking and targeting advanced missile threats,
05:09and beyond line-of-sight targeting for time-sensitive or mobile targets.
05:15The Tranche-1 launch today is delivering into orbit 21 data transport satellites provided by York Space Systems
05:21for the data transport layer of the proliferated warfighter space architecture.
05:26These 21 satellites form the first of 10 satellite planes that make up the first tranche of warfighter capability
05:32in the SDA's proliferated warfare space architecture.
05:39Coming up in just a few seconds, we'll be working towards the entry burn.
05:43We are now 30 seconds away from the beginning of the entry burn.
05:48You should see the graphics light up as the engines do on the bottom of your screen.
05:53As I was mentioning earlier, each space vehicle on this launch is configured with four optical communication terminals
06:00for satellite-to-satellite and satellite-to-ground laser communications for satellite-to-satellite and satellite-to-ground laser communications,
06:13and two mission data communication payloads for link-16 and KA-band radio frequency receive and transmit capabilities.
06:32Stage 1 entry burn startup.
06:39Stage 1 FTS is saved.
06:41And there's that call-out for the entry burn startup of the Falcon 9 first stage.
06:45This burn is set to last about 26 seconds, and again is slowing down the vehicle in preparation for its final burn and landing.
07:02Stage 1 entry burn shutdown.
07:04And there's the call-out for entry burn shutdown, the completion of the Falcon 9 first stage entry burn.
07:11Coming up next will be the first stage landing burn, which will start a little over a minute from now.
07:16The Tronch-1 satellites launched today will be operated from two SDA space operation centers,
07:35one in Grand Forks Air Force Base, North Dakota, and the other at Redstone Arsenal in Alabama.
07:41These will also be supported by a global network of ground entry points.
07:44Coming up next we'll have the landing burn of the first stage.
07:59The landing burn is the final burn of the Falcon 9 booster used to reduce the remaining speed of the vehicle
08:03for a gentle and precise landing on our drone ship.
08:06Of course I still love you.
08:07Stage 2 terminal guidance.
08:09We should hear that call-out for the first stage landing burn moments from now.
08:14Stage 2 FTS has saved.
08:26Stage 1 landing burn.
08:29And we heard the call-out for landing burn start on the Falcon 9 first stage.
08:33This is the final burn that this booster will see before landing.
08:43I'm back shut down.
08:44Stage 1 landing like deploy.
08:56Stage 1 landing confirmed.
08:58And another successful landing of our Falcon 9 rocket.
09:01The 6th launch and landing for this first stage.
09:04As a reminder, we will not be showing any Stage 2 or deployment views at the request of our customer.
09:09Normal orbit insertion.
09:10Flight 1 landing.
09:11Okay.
09:12Let's go.
09:13Next, I will have a new update.
09:14Back to the first stage.
09:15We will have an update.
09:16In the update.
09:17We will take the next steps.
09:18We will see after using the position.
09:19It will have a new update.
09:20Second, one instant.
09:21We will have a new update.
09:22If you will have a new update it.
09:23Please stop over this.
09:25Let's go.
09:26There is a new update.
09:27I will need to follow up next.
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