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Rocket Lab Launched US Spy Satellites From Virginia
Space.com
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16/03/2025
A Rocket Lab Electron rocket launched the NROL-123 mission from the company's Launch Complex 2 (LC-2) at NASA's Wallops Flight Facility in Virginia
Credit: Rocket Lab
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Tech
Transcript
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00:00
10, 9, 8, 7, 6, 5, 4, 3, 2, 1, liftoff.
00:29
Beginning pitch normal. Stage 1 propulsion nominal.
00:46
Our 46th Electron is in the air and on its way to orbit after liftoff from Launch Complex 2.
00:52
Electron's Rutherford engines are burning hot as the launch vehicle accelerates towards Max Q
00:58
at that moment when the density of the air around the rocket and its acceleration through that air
01:03
creates the maximum aerodynamic pressure that the launch vehicle will experience.
01:08
The call from Mission Control that we've passed through that point will be coming up shortly.
01:14
Vehicle is supersonic.
01:20
Approaching Max Q.
01:29
Max Q.
01:36
With Electron clear through Max Q all is looking nominal at now 1 minute and 26 minutes into flight.
01:42
So the rocket is now over 20 kilometers in altitude and moving at over 2,800 kilometers an hour.
01:50
Up next will be three launch milestones that happen at roughly the same time.
01:55
To separate the first stage of the rocket from its second we need to throttle down
01:59
and shut off the booster's nine Rutherford engines.
02:02
This is called MECO or main engine cutoff.
02:06
Next is stage separation when those two sections will disconnect
02:10
and then it will be second stage engine ignition for the 10th Rutherford engine on Electron.
02:16
Those three events are coming up shortly so let's bring up the audio channels from Mission Control to listen in.
02:26
15 seconds to staging.
02:29
Entered burnout detect mode.
02:42
MECO confirmed.
02:47
Stage separation successful.
02:50
Stage. Stage separation.
03:01
That is MECO, stage separation and Rutherford engine start on the second stage all confirmed across the nets.
03:08
Live and let fly is living up to its name as the mission continues nominally on its way to its target orbit.
03:15
Up next will be fairing jettison when Electron's nose cone splits and falls away
03:20
to expose the NRO's payload in preparation for deployment.
03:39
Nominal.
03:45
High voltage battery discharge is nominal.
03:54
Fairing separation successful.
04:01
And that is fairing jettison confirmed as all continues nominally for Electron.
04:15
We are now T plus 4 minutes and 19 seconds since Electron's launch off the pad at Launch Complex 2 in Virginia.
04:40
Now as we wait for our next set of mission milestones we can see that Electron is progressing smoothly through flight.
04:47
The Rutherford engine on the second stage will continue to burn through that propellant and empty those tanks
04:53
as we approach engine cut off for the second stage in just a few minutes.
04:57
Now that second stage engine is mostly identical to the engines on stage one.
05:02
It contains all of the same 3D printed parts and machinery as a stage one engine
05:07
but has a larger extension nozzle that is ideal for the vacuum conditions of space
05:12
and the engine has the ability to hot swap its batteries.
05:16
Because the batteries for this engine have been working harder and for longer
05:20
they need to be swapped out for the mission to continue.
05:23
And that is an action unique to Electron which will be coming up in just a few minutes.
05:37
Coming up now on battery hot swap for the second stage engine.
05:53
So those batteries are close to terminal now as the mission is continuing.
05:57
So Electron's engine power system will swap over to a new set to keep it running.
06:03
This hot swap manoeuvre will allow continuous energy supply to the Rutherford engine's turbo pumps
06:09
which delivers fuel into the engine's combustion chamber at extremely high pressure.
06:14
The old set of batteries will be jettisoned which we might see on our screen when that happens.
06:19
So let's watch and listen out for the call from Mission Control.
06:41
Battery jettison confirmed. Hot swap successful.
06:50
There they went. You saw it there. A clean battery hot swap for the second stage Rutherford engine.
06:55
Propulsion looks nominal. Our orbital trajectory is on track
06:59
and we are now just a few minutes away from the second stage's final milestones.
07:13
Stage two propulsion is still holding nominal.
07:36
T plus 7 minutes 21 seconds and counting and the second stage is performing well on this leg of the journey.
07:43
The burn of this engine should take the kick stage with its NRO payload
07:47
all the way to the highest point of this mission's trajectory
07:50
and reach speeds of up to 28,000 kilometres an hour ahead of payload deployment.
07:57
We are now though under two minutes to the cut off of this engine
08:01
and we should start hearing more status calls from our Mission Control operators shortly.
08:12
High voltage battery discharge holding nominal.
08:23
Soon we'll be repeating the process of the stage separation that we completed earlier in the mission
08:29
for the stage two you see on your screen from its kick stage with the NRO payload.
08:34
Now this includes second engine cut off or SECO of that stage two engine
08:39
followed by separation between stages two and three.
08:42
Now once that third stage, the kick stage, separates
08:45
it will go into a phasing orbit of Earth ahead of payload deployment.
08:49
We'll listen in for those events now.
09:19
SECO confirm.
09:44
Good, transfer orbit.
09:49
Great news from Mission Control.
09:51
With that second stage engine cold and the kick stage separated,
09:55
LIV and Letfly's payload is now further on its journey to orbit.
10:00
The kick stage has been released at the apogee of this mission's target orbit,
10:04
otherwise known as its highest point, but not yet on a circular path.
10:09
It will now complete an elliptical orbit around Earth
10:12
before the dots reconnect at the apogee.
10:15
Now when it does, the kick stage's engine will light up for the first of its multiple burns
10:20
to set the mission on a circular orbit.
10:23
Next after that will be payload deployment and the release of the payload.
10:27
Now at the request of the NRO, we won't be live with those kick stage actions
10:31
or payload deployment calls, but we will bring you updates across our social media channels.
10:36
Payload deployment will mark the end of the mission for Rocket Lab,
10:40
but the beginning of those three research missions on orbit for the NRO.
10:44
So good luck and LIV and Letfly to the NRO.
10:48
We'll be ending the broadcast now, but remember to follow Rocket Lab's Facebook,
10:52
Twitter and Instagram pages for updates on this mission
10:55
and our next Electron launch scheduled soon.
10:58
This is Rocket Lab Mission Control signing off.
11:10
NASA Jet Propulsion Laboratory, California Institute of Technology
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10:17
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