Our current velocity is 450 meters per second at an altitude of about 12 kilometers. From the surface of mars, heat shield set, press advance has now slowed to subsonic speeds and the heat shield has been separated. This allows both the radar and the cameras to get their first look at the surface. Current velocity is 145 meters per second and an altitude of about 10 km. Nine and a half kilometers above the surface now filter converge, velocity solution, 3.3 meters per second altitude, 7.4 kilometers now has radar lock on the ground. Current velocity is about 100 meters per second 6.6 kilometers of the surface. First advance is continuing to descend on the parachute we are coming up on the initialization of terrain, relative navigation and subsequently, the priming of the landing engines. Our current velocity is about 90 meters per second at an altitude of 4.2 kilometers ovf valid. We have confirmation that the lander vision system has produced a valid solution and part of terrain. Relative navigation, priming tpa is nominal. We have timing of the landing engines back shelf. Current velocity is 83 meters per second at about 2.6 kilometers. From the surface of mars, we have confirmation that the back shell has separated. We are currently performing the divert maneuver. Current velocity is about 75 meters per second at an altitude of about a kilometer off the surface of mars. Here in safety. Bravo, we have completed our terrain. Relative navigation. Current speed is about 30 meters per second altitude of about 300 meters off the surface of mars.

We have started our constant velocity accordion, which means we are conducting the sky crane about to conduct the fly. Crane maneuver skytrain maneuver has started about 20 meters off the surface we’re getting signals from mro tango delta, touchdown, confirmed perseverance safely on the surface of mars, ready to begin seeking the sands of past life, the parachute upload camera and let me give you a quick warning To not blink, because things go really fast here you can see that uh. You can get a sense really of how violent that parachute, deploy and inflation are uh. The parachute pack it’s. The parachute is packed so densely that the pack is basically the same density as oak and it’s about 150 pounds. It gets launched out of the spacecraft with a mortar, which is basically a cannon uh with a muzzle velocity of around 100 miles an hour, and the spacecraft itself was going about a thousand miles an hour at this point going about 1.75 times the speed of sound. So, just in case you, blink let’s, show you that one more time and kind of see that in high speed and then real time and then we’ll slow it down and take a look at the details. Okay, so let’s try to walk through this, a bit slower uh this time at about quarter, speed and we’ll pause at times to point out things we see so let’s start that rolling here you can see the pack getting pushed out of there.

You can kind of see the pack right in the middle as it’s being pushed and the parachute lid, which is right on top of it. It’S kind of that circle to the left of the pack was on top of the pack, and it was it was there to protect the parachute during entry. It’S got some thermal protection system material on it to keep the parachute, nice and cool and protected, and the pack is used to push that lid right off the vehicle. Given that cannon force, you can also see some of the other things that have popped off. Of that lid, which is kind of expected, given how violent this uh this launch really is so let’s move on from here. So we keep going out here. You can see the pack reach what we call line stretch so that’s as far as it’s going to go. It’S, where the parachute’s going to start inflating that’s about 150 feet behind the spacecraft, and it got there in just under one second, so this pack is really moving that’s pretty much as the parachute starts to come out, you can see the pack is rotated about 90 Degrees that’s, pretty common we’ve, seen that in some of our testing here on earth at high altitude as well so let’s keep going and take a look at the inflation side. Inflation really looks textbook it’s, nice and symmetric. The parachute opens in only about seven tenths of a second again, really fast, there’s, no evidence of tangling of the lines which is great, that’s, uh there’s, about two miles of lines in the parachute system.

So the fact that we don’t see any evidence of tangling or any kind of other misbehavior is great news and i’m sure we’ll be studying this video for many many years and picking it apart frame by frame and of course, we have a second camera on board. As well, that recorded this, this launch and inflation of the parachute you might notice the pattern that’s on the the parachute here. Distinct patterns are useful in helping us determine the clocking or orientation of the parachute. Also, the contrasting sections can be useful in tracking different positions of the parachute different portions of the parachute, as it inflates um so it’s, especially useful when we have multiple cameras, as we do here and are trying to track features in the parachute inflating. In addition to enabling incredible science, we hope our efforts and our engineering can inspire others. Sometimes we leave messages in our work for others to find for that purpose. So we invite you all to give it a shot and show your work. Let’S move on to the rover, download camera and take a look at that in a little bit more detail. So if we start that up, you can see the heat shield falling away very nicely and symmetrically pausing. Here we can take a look at what we see on the on the heat shield. First, we see the medley components on the heat shield. You can see the electronics box and the gold wires that lead to all the various to all the various sensors that measured the aerodynamics and heating during entry during the entry portion of flight, we can also see some white flecks in different places, both on the heat Shield and free flying, which are likely frost that accumulated on the heat shield that heat shield is really really cold during cruise, so it’s, not at all unexpected to see some of that frost appearing on the heat shield on the inside.

You can also see something we didn’t expect to see if you kind of look at the four o’clock position on the heat shield, or so towards the middle somewhere somewhere between the middle and the edge um. One of the springs that helped push the heat shield off seems to come loose uh, it doesn’t, you know, it’s, not much of a big deal but it’s. Definitely not not what we expected. If you look at the other eight springs, they actually are, where they’re supposed to be all around the edge of the heat shield. There’S no danger to the spacecraft here but it’s, something we we expect and i think we wouldn’t have seen if we didn’t have the camera system to show us what was going on so let’s keep rolling. Here. We can see that the heat shield basically stays in the same orientation as it flies away from us. It’Ll come back into view in a little bit, but this is uh. This is great. This is kind of what we expected in terms of the aerodynamics of that heat shield. It doesn’t tumble or do something weird uh that was unexpected in flight, so that’s very useful to have this video to show us that so in the interest of time, let’s skip ahead to about 15 seconds before backshell separation. So starting this video here, you can see that the spacecraft is rocking back and forth while hanging under the parachute uh this.

This rocky is less than it was earlier in flight, but uh pretty much what we expect there, that white flash was back shell separation and you can see us throttle up and begin our divert maneuver. You see the vehicle’s turned over so we’re actually beginning to fly east and that’s. Why you can see the the delta over there as it as it maneuvers eastward, to the eventual landing site it actually passes over the field of view will pass over the landing site and then kind of overshoot it a little bit because it’s got to stop that Horizontal divert that we did, you can see everything’s, nice and smooth now that the engines are under control, that on sheet parachute rocking is gone. So here we are slowing down and stopping and we’re coming straight down on our eventual landing site. Here you can see that as we as we’re really going to slow down here, you can see the engines as we get lower, uh throttle up there and uh and stop us here, and you can see it beginning to push all that dust around on the ground. On the two sides that shaking there is the rover deploying and the mobility during sky, crane and uh here we are coming down and that that rocking motion of the of the rover we’ll see in other videos, but that settles down right before we hit the ground. In a nice safe flat spot, there doesn’t appear to be too much of concern: that’s right below us um.

So that was the rover’s view. Looking down let’s, take a look at the descent stage view uh looking down as well uh during that skycrane portion of flight. So here we go, the rover begins to drop away from the descent stage and that’s the first, the first part of mobility deployed you kind of see here right before we pause that the mobility kind of shook a little bit in that in that first deployment. Here you can see the the bridles that are hanging down from the top of the picture. Those are what’s supporting the weight of the rover below the descent stage and if you look down toward the left, the bottom part of the image and toward the left, you can see that gold, umbilical that’s what’s, transferring all the information between the rover and the descent Stage, including this video, this picture is coming down from the camera up on the descent stage down to the rover through that cord, in addition to other information, that’s going back and forth. So, as we keep going here, you can see the bogey that’s on both sides of the mobility back. You see those wheels the back two wheels on either side swing down that caused a little bit of rocking of the rover as expected, but you can kind of see that kind of settles out a little bit right as we enter that that uh, that plume and Dust cloud as we get down and touch down and the video ends a touchdown, of course, because the camera that’s taking this video uh is about to leave this area in a hurry on that descent stage after we, we cut it loose from the rover.

So now let’s take a look at the rover, upload camera so now staring up at the at the descent stage from the rover. So here we go. We got a really close up, look at the descent stage and we can start rolling that you can see the descent stage as the rover begins to fall away from it and see the effect of that rover wobble from the mobility deploy so pausing here. The first thing that most people will probably notice is that there’s, no no plumes or no visible smoke or anything else coming out of the rockets at the corner of the descent that’s expected hydrazine doesn’t, really isn’t isn’t a combustion reaction when we, when we burn it, The exhaust products are nitrogen and hydrogen, which are clear, so we expect the the plumes to be clear, that’s what we see in tests here on earth as well uh, so i can promise you those engines are on, though uh one thing you can see in this. In the earth testing we do is that the chambers, the thrust chambers of those engines get kind of hot and glow pink, and you can kind of see that in the interior, especially if you look at the the the engine at the very top right of this Image, if you look closely right above the uh the engine bell there on the crust chamber, you can see little streaks of pink on there and that’s what’s happening as the engines have been on for a long time.

They get really hot and that heat shows up there in those pink stripes that we see so take a look at that closely. When you get a chance to to look at the image in some detail. As with the previous videos, you can see the bridles that are supporting the weight of the rover there at the bottom now of this image and that umbilical again transferring uh transferring data back and forth between the stage and the rover. So let’s keep going a little bit more you’ll see the image begin to wobble a little bit here. I can promise not the descent stage, wobbling it’s, actually that rover tipping back and forth a little bit as we saw as the mobility deploys. Both the first initial mobility deploy and then the the the bogeys deploying um as we near touchdown let’s, slow it down a bit and proceed in slow mo here. So now, we’re watching about quarter speed. Things are getting pretty dusty here as we get down down toward the bottom. Take a look here at the bottom left of this picture.

https://www.youtube.com/watch?v=g0jI4F8n21o