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How does SpaceX’s Dragon get back to Earth from Orbit? How exactly it re-enters and lands! 

Everyday Astronaut
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How do you actually get back from orbit? Do you just pump the brakes and fall right out of space? Well, there’s a lot of fun physics involved in deorbiting and today we’ll do a summary of how you deorbit, go over the hardware that allows the Crew Dragon Capsule to reenter and safely splash down, we’ll go over the sequence of events and even the exact conditions that need to be met in order to allow for a safe reentry.
Timestamps:
00:00 - Intro
03:10 - Re-Entry Criteria
05:30 - Crew Dragon Re-Entry Timeline
12:35 - Hardware Overview
25:10 - Orbital Mechanics Rundown
29:30 - Summary
Article Version (Written by Alex Crouch)
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4 июл 2024

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Комментарии : 952   
@xtojump
@xtojump 3 года назад
Timestamps: 00:00 - Intro 03:10 - Re-Entry Criteria 05:30 - Crew Dragon Re-Entry Timeline 12:35 - Hardware Overview 25:10 - Orbital Mechanics Rundown 29:30 - Summary
@solecrusher7043
@solecrusher7043 3 года назад
Legend
@peterwmdavis
@peterwmdavis 3 года назад
It’s in the video description but okay...
@xtojump
@xtojump 3 года назад
@@peterwmdavis yep it totally is but I'm watching on mobile like the majority of viewers and description timestamps don't work on mobile 😉
@hennemmc5021
@hennemmc5021 3 года назад
@@xtojump they do? What are you watching on
@peterwmdavis
@peterwmdavis 3 года назад
Patrick Mac Cann - Communication visuelle, web-design et photo It works perfectly well for me using RU-vid app on mobile. You can always click to see the description
@lydiavidyasagar9207
@lydiavidyasagar9207 3 года назад
When he said he'd make a video for today I thought just a 7 minute explanation not a 30 MINUTE BREAKDOWN!!!! I LOVE YOU TIM
@vanillaswirl87
@vanillaswirl87 3 года назад
It's Tim 😂 go big or go home.
@lydiavidyasagar9207
@lydiavidyasagar9207 3 года назад
@@vanillaswirl87 you're not wrong
@handsanitizermk.268
@handsanitizermk.268 3 года назад
Honestly, what did you expect? It's Tim. 30 min is the shrotest he can do
@thedyingtitan1247
@thedyingtitan1247 3 года назад
It’s tim he doesn’t do short
@edwinjohnson8488
@edwinjohnson8488 3 года назад
I didn't realize that the video was about 30 minutes long till I read your comment.
@arieldahl
@arieldahl 3 года назад
I know how much stress you are in Tim, you are practically doing a triathlon (forget marathon. Tim is definitely doing much more than that, for a longer period of time) between the live streams, launches, static fires, OLD and the execution of this video. well done Tim! thanks for all of your hard work!
@joeyknight8272
@joeyknight8272 3 года назад
Stress my dude is a killer
@bimblinghill
@bimblinghill 3 года назад
@@joeyknight8272 Stress is a funny thing though, it's not just about how much you are doing. I think Tim's at the top of his game right now and it probably feels pretty invigorating. He's probably pretty exhausted though. Before long he will need to treat himself to a nice holiday or the pressure of sustaining this output will turn into stress and become a problem.
@willierants5880
@willierants5880 3 года назад
I'm just surprised he wasn't in one of those boats loitering around the landing site. LOL
@barakathiongo4835
@barakathiongo4835 3 года назад
Where's this man's Patreon??
@drakep271
@drakep271 3 года назад
@@barakathiongo4835 linked in the description :)
@88888888tiago
@88888888tiago 3 года назад
"Bob & Doug", sounds like a burger space corp.
@Xerxes2528
@Xerxes2528 3 года назад
Lmao 🤣
@GEnghis559
@GEnghis559 3 года назад
It does
@vanillaswirl87
@vanillaswirl87 3 года назад
They should name the food place near starship Bob & Doug.
@goose32373
@goose32373 3 года назад
There's a pretty hilarious movie from the 80s called Strange Brew . It's main characters are named Bob and Doug. Every time I hear their names I think of that move lol.
@88888888tiago
@88888888tiago 3 года назад
@@goose32373 That's it. I remember now. I knew this name combination wasn't strange to me.
@tippyc2
@tippyc2 3 года назад
3:57 Tim, 25 dBz refers to the intensity of the reflection in the Doppler radar. It's a logarithmic scale that represents the volume of precipitation per volume of air.
@budmeister
@budmeister 3 года назад
Not Dragon Ball Z Episode 25?
@satyris410
@satyris410 3 года назад
@@ilyaholt8607 it logs rhythm with a volume scale on his radar
@IDoNotLikeHandlesOnYT
@IDoNotLikeHandlesOnYT 3 года назад
I was pretty sure he knew that but was just wondering what the "z" refers to. Anybody know?
@tippyc2
@tippyc2 3 года назад
@@IDoNotLikeHandlesOnYT It really just distinguishes this use of "dB" against other uses of "dB".
@satyris410
@satyris410 3 года назад
@@rogerwalker8764 can't tell if this is legit or broscience
@ivorybow
@ivorybow 3 года назад
I deeply appreciate the technical depth of your videos. I am a science geek and I am starved for this information. Thank you so much.
@Gouravthappa
@Gouravthappa 3 года назад
same here
@spacethink5491
@spacethink5491 3 года назад
Yeah.. the amount of research he is doing for all these vedios are fantastic
@aaravp6586
@aaravp6586 2 года назад
Same
@amberpereira9350
@amberpereira9350 3 года назад
I live in Pensacola and we're pretty excited that they'll be splashing down on our side of the state and in our "backyard" ❤
@tgn2502
@tgn2502 3 года назад
Wow! Im super exited for you guys, have a good one!
@jaka7418
@jaka7418 3 года назад
I can already tell this comment will get a crap ton of likes
@armchairrocketscientist4934
@armchairrocketscientist4934 3 года назад
Yeah, I lived in Pensacola for a year as a Latter-day Saint missionary. Y'all have some beautiful beaches, especially over towards Navarre.
@FallSkyX
@FallSkyX 3 года назад
Lucky
@armchairrocketscientist4934
@armchairrocketscientist4934 3 года назад
@@middletnpyro I thought it was closer to Foley. Hm. Cool anyway that it's in the neighborhood. I went to Mobile a couple times too.
@eoincampbell5046
@eoincampbell5046 3 года назад
I have been watching your vids for 2 years you have helped me through a lot
@eoincampbell5046
@eoincampbell5046 3 года назад
Omg
@mortenvajhj2117
@mortenvajhj2117 3 года назад
I like how your globe changes depending on what you are talking about When you talked about the mars rovers it was mars And now its earth :)
@ar_tc
@ar_tc 3 года назад
Morten Vajhøj srsly? I never notice xD
@sovietmuffin501
@sovietmuffin501 3 года назад
It’s a great little Easter egg
@robsadler5605
@robsadler5605 3 года назад
It's called a Mova Globe and they're pretty awesome :)
@jackdaw1905
@jackdaw1905 3 года назад
It even faces with the landing site to the camera
@Formula1st
@Formula1st 3 года назад
They spin, it looks really cool
@Pants4096
@Pants4096 3 года назад
I've always loved the "simplicity" of slightly-off-center capsule reentry, where the vehicle remains naturally stable and only roll control is available, yet that roll control has a surprising amount of authority by pointing the lift vector anywhere around the full 360. Thinking about reaching a precise splashdown point, though, I'm curious just how much capability they have to affect cross-range and track-length.
@UNSCPILOT
@UNSCPILOT 3 года назад
Knowing SpaceX it's probably pretty good, I expect the Parachutes present the most accuracy error, simply by there nature
@kindlin
@kindlin 3 года назад
Here's the actually tricky part, you can't just let it 'go forward', there will always be lift (which is 'lift' in that it imparts a force perpendicular to the drag) due to the off-center nature of the center of mass. So if you were actually on point, you'd have to do some weird little loop to swoop back to your current trajectory. They must have a default orbital trajectory including incidental lift and then make small adjustments to that profile as conditions require.
@samnardella1802
@samnardella1802 3 года назад
I like one of the funny ksp loading screen messages where it says, “Calling orbital mechanic” 😂
@jan4379
@jan4379 3 года назад
I can really recommend the Scott Manley video Tim referred to at the beginning.
@mytube001
@mytube001 3 года назад
I suspect that the overlap between Tim's viewers and Scott's viewers is massive! :)
@johnevans6399
@johnevans6399 3 года назад
Thanks Scott.
@stonefish98
@stonefish98 3 года назад
So much that you can't link it?
@jenniferreyes2865
@jenniferreyes2865 3 года назад
@@stonefish98 Not in a youtube comment
@followthegrow108
@followthegrow108 3 года назад
Dude hopefully im earlier enough for you to see my comment, i just wanted to say i love your videos!!!! Thank you so much man!!!! 🌎🔥❤
@frogsecretaryofswamp452
@frogsecretaryofswamp452 3 года назад
Well he does see your comment
@Stubby0266
@Stubby0266 3 года назад
This video helped answered and explained my questions involved with all the orbital mechanics. Thanks Tim !
@darrenreslis594
@darrenreslis594 3 года назад
I have just found my new favourite You Tube channel, you are a star! I thought, THOUGHT, that I was quite knowledgeable but after spending the entire day over here in the UK watching back to back Tim Dodd videos I realised that I actually knew very little. You are an excellent, amusing and very informative educator Tim. I never, ever watch videos that are longer than about three minutes, until today that was, I've not even used the time stamps once. Superb.
@cameronwebster6866
@cameronwebster6866 3 года назад
Based on the wikipedia article "dBZ (meteorology)" 25dBZ equates to 1.3mm/h of rain.
@peterdrury5627
@peterdrury5627 3 года назад
Tim, this was excellent--could be used as an intro at the college level. An ideal mix of science, engineering and enthusiasm!
@maxbalasubramaniam6082
@maxbalasubramaniam6082 3 года назад
You got it up before the reentry. With only 5 hours to spare
@dakota4766
@dakota4766 3 года назад
Thanks for the return to making videos again Tim!!
@billcrowle
@billcrowle 3 года назад
truly astonishing and comprehensive description, well done, and thanks to your patreon supporters too!
@skyvenrazgriz8226
@skyvenrazgriz8226 3 года назад
How to get down from orbit: throw a dice... ...check for dice roll after landing under the seat because of the nessesarity for gravity and being stationary to complete. Then proceed with disregarding the result.
@maiki947
@maiki947 3 года назад
LOVE your Channel thanks for this amazing content.
@joeduffyy
@joeduffyy 3 года назад
So glad you added the small triangle thing next to the timeline, it makes it so much easier to follow
@lukasg6505
@lukasg6505 3 года назад
Can’t get enough of Tim’s space-explanation videos. Love it! Go on !
@FerralVideo
@FerralVideo 3 года назад
I was honestly surprised when I learned that they're de-orbiting using the tiny Draco RCS thrusters, instead of the huge Super-Draco motors. Especially since now that they're splashing down, the only thing they have the Super-Draco's doing is abort contingencies. That said, I do appreciate your explanation on the "why" of that answer - it makes sense!
@spinningsquare1325
@spinningsquare1325 3 года назад
They totally should use super Draco for splash down/ landing softening like on soyuz
@FerralVideo
@FerralVideo 3 года назад
@nuff sed In fairness, the way they designed the system both the RCS Draco and the massive SuperDraco use the same fuel reserve. So I gotta commend them for that. But still the weight of the engines themselves counts - although it ALSO counts in the competing designs which also use large abort motors that are carried into orbit. So they went from "really cool idea" to "just like everyone else", which is still a bit of a shame.
@mysteriousloki4175
@mysteriousloki4175 3 года назад
Love rockets, almost as much as i love this channel
@zidani.s6712
@zidani.s6712 3 года назад
Same
@followthegrow108
@followthegrow108 3 года назад
Same. I LOVE ROCKETS! USA 🇺🇸
@grunt6799
@grunt6799 3 года назад
Awww 🥰
@aef6259
@aef6259 3 года назад
Great video, Tim! You answered the questions I had about Dragon 2’s thrusters. Thanks!
@andyjk5974
@andyjk5974 3 года назад
1:06 that amazing shot Tim on the left, falcon 9 with crew dragon making history in the middle. and a Tesla on the right. one picture carrying some great stuff
@Charlie-Oooooo
@Charlie-Oooooo 3 года назад
Don't forget Tremor, the space dinosaur ;) Seriously though, praying Bob and Doug get back down to earth, and home to their families, safely and happily!!!!
@Rinc1123
@Rinc1123 3 года назад
is that their names dragon riders i wanna be called a dragon rider
@robsadler5605
@robsadler5605 3 года назад
Dragon riding astronauts or Dragonauts!
@robsadler5605
@robsadler5605 3 года назад
@Yai Garcia but being a dragon rider sounds so awesome!
@ilotitto
@ilotitto 3 года назад
Dragon rider is Donkey from Shrek
@crugleberryandfriends4740
@crugleberryandfriends4740 3 года назад
The capsule was ORIGINALLY called Dragon Rider
@robsadler5605
@robsadler5605 3 года назад
@@crugleberryandfriends4740 I didn't know that. Thanks for the nugget of info.
@xxxdiresaintxxx
@xxxdiresaintxxx 3 года назад
Nice work as always Tim.
@Trr1ppy
@Trr1ppy 3 года назад
I missed this in my sub feed, glad you mentioned it in the splashdown stream!
@t65bx25
@t65bx25 3 года назад
1. Click Retrograde 2. Press Z 3. Press Spacebar 4. Wait
@kyleking3839
@kyleking3839 3 года назад
But why aren't you thrusters already on??
@karanguyen7569
@karanguyen7569 3 года назад
Great job getting this out on time!
@avap0n459
@avap0n459 3 года назад
Point retrograde, fire engines, open parachutes at 3000 and there you go xD
@leriku2270
@leriku2270 3 года назад
i see your a man of culture as well
@avap0n459
@avap0n459 3 года назад
@@leriku2270 indeed I am
@blackhawks81H
@blackhawks81H 3 года назад
@@avap0n459 The space capsule equivalent of "pulling at the mastheads"... Nice.
@ryanedwards4636
@ryanedwards4636 3 года назад
That was right and wrong
@shauryaajitsingh6157
@shauryaajitsingh6157 3 года назад
Don't forget to eva in the air
@mrmunyang2476
@mrmunyang2476 3 года назад
Really cool vid buddy! love it!
@genbradly
@genbradly 3 года назад
Well done sir! Great new video.
@burgerbacon1451
@burgerbacon1451 3 года назад
Oh boi,my man is safe.
@spacethink5491
@spacethink5491 3 года назад
🥰
@kerbal_madness
@kerbal_madness 3 года назад
I live in portugal, and as of about an hour ago the crew dragon passed over me, i actually got just a frame of crew dragon during THE DAY using my nikon p1000
@thomas127
@thomas127 3 года назад
Wow that's cool! I would love to see that picture (you could post it to reddit ;-)
@lukanys5308
@lukanys5308 3 года назад
I would love to see that picture
@kerbal_madness
@kerbal_madness 3 года назад
Ill maybe post it on r/spacex
@thomas127
@thomas127 3 года назад
@@kerbal_madness do that! You'll get my upvote! :)
@kerbal_madness
@kerbal_madness 3 года назад
Thanks!
@jamesburden4810
@jamesburden4810 3 года назад
Awesome video as always Tim 👍🏻
@randomhobbies5796
@randomhobbies5796 3 года назад
So much info in your video I can't wrap my head around it.. Thank you for all your work
@harrrrry
@harrrrry 3 года назад
It thought this was an old live stream based off of the thumbnail, I didn't realise it was a video till I checked twitter
@PanduPoluan
@PanduPoluan 3 года назад
"Dragonriders" ... I like that! You should @ Elon, asking him to make a custom patch for all astronauts who will ride on Crew Dragon, a patch that proudly declare "Dragonriders"...
@josephsullivan5145
@josephsullivan5145 3 года назад
Great job Tim!! Very informative and really makes the de-orbit process easier to understand.
@ericwessel6511
@ericwessel6511 6 месяцев назад
This video is awesome, great work Tim!
@SnoopyDoofie
@SnoopyDoofie 3 года назад
Aliens in UFOs are watching this an chuckling to themselves: "Ah, nothing like watching Newbies."
@N0Xa880iUL
@N0Xa880iUL 3 года назад
Why don't they catch Dragon with a ship like Ms.Tree or Ms.Chief?
@pmj_studio4065
@pmj_studio4065 3 года назад
Maybe the ship can't move fast enough to be at the right spot in the right time (that still can't catch fairings every time, and Dragon would have to land at most a few meters from the center to not make the ship roll), maybe the vertical speed is too high and Dragon would break the net, maybe it would be just too much work to certificate this... idk
@questionmania2191
@questionmania2191 3 года назад
Although i knew all the orbital mechanics watching your and scott Manley's video over the past 1 and 1/2 year ,i still watched this video till end because space is fun and watching the same thing over and over isn't boring.thanks for this video
@notkray8468
@notkray8468 3 года назад
Thank you I was having trouble landing my Capsule on my backyard pool.Appreciate the help!
@uguoof4893
@uguoof4893 3 года назад
first (=
@youreasimp1468
@youreasimp1468 3 года назад
GAY
@CarlinComm
@CarlinComm 3 года назад
Hey Tim, great job as always, also saw your live stream of the DM2 landing. Well done!
@lukatodosijevic1901
@lukatodosijevic1901 3 года назад
You definately deserve more views on this video. This is an awesome explanation of something that people don't really think about, and my opinion is that you've done an awesome job. I really love these kinds of videos.
@dataintensive4199
@dataintensive4199 3 года назад
Well done Tim. Great video! I'm primed for the splashdown now.
@LucasFehr
@LucasFehr 3 года назад
Awesome video, as usual!
@LOLDEMOS
@LOLDEMOS 3 года назад
Awsome explanation Tim, love your content
@Cynycter
@Cynycter 3 года назад
This channel has been an awesome find for a space nut like me. I love how you break down all the concepts in a simple, easy to understand way. Big up?
@sorthman
@sorthman 3 года назад
Maybe your best video yet. Thanks Tim!
@willierants5880
@willierants5880 3 года назад
Great video Tim, very informative.
@marsmountain2794
@marsmountain2794 3 года назад
Great timing, thanks Tim!
@tripv420
@tripv420 3 года назад
Thanks for this awesome video Tim!!!
@tedfreedman7468
@tedfreedman7468 3 года назад
i loved this! Nice job Tim!
@allenhentges8348
@allenhentges8348 3 года назад
Excellent tim thought it would be a short video great job
@yulaviation3868
@yulaviation3868 3 года назад
I just wanna say that I love aviation and your channel got me into space as well
@elliottgreen6916
@elliottgreen6916 3 года назад
Love the new studio Tim! Video’s awesome too :D can’t wait for SN5 hop
@JohnGilmour
@JohnGilmour 3 года назад
Another great one Tim. Thanks!
@StevenNassibian
@StevenNassibian 3 года назад
I learned alot from your video. Especially regarding orbital mechanics. Thank you and enjoy the slash down.
@msudawg1997
@msudawg1997 3 года назад
As always, great video Tim.
@Prifly70
@Prifly70 Год назад
Looking back at this is wild...you will know Exactly what this feels like Tim. Awesome.
@marlonvaz4258
@marlonvaz4258 3 года назад
First time here Tim and I need to say that I loved your video. You have a new subscriber. Great Job!
@jorgeltrevilla
@jorgeltrevilla 3 года назад
Awesome explanation. Thanks
@hovaten3428
@hovaten3428 3 года назад
Love your work Tim! My favorite channel btw
@brett4264
@brett4264 3 года назад
Good video Tim. I learned a lot!
@donpayne2507
@donpayne2507 3 года назад
One of your best videos to date! Great info there.
@Turbrewski
@Turbrewski 3 года назад
Ive always wondered how this works, nice presentation!!
@trickys77
@trickys77 3 года назад
Your videos are next level, such high quality & incredibly informative! Thanks 👏👏👏👏
@johngrimble3050
@johngrimble3050 3 года назад
Released just in time, you guys are ambitious!
@hoodoovoodooyoodoo
@hoodoovoodooyoodoo 3 года назад
Very informative! Keep up the good work!
@bimblinghill
@bimblinghill 3 года назад
These videos are getting ever more professional; all that work on the new studio has paid off.
@Richard.Holmquist
@Richard.Holmquist 3 года назад
That was fantastic, Tim. Thanks.
@michaelsalzer4362
@michaelsalzer4362 3 года назад
Great informative content in a very accessible format. Keep up the good work. Love your channel!
@oljobo
@oljobo 3 года назад
Most perfect explanation video 😍
@christiantalavera9795
@christiantalavera9795 3 года назад
Way to break it down. Very cool video! Strong work.
@briangalton7068
@briangalton7068 3 года назад
Great program Tim, perfectly explaining everything relating to Re-entry. I feel as if I am now a semi-expert. Great work and thanks. Hope you can do many, many more such programs. Cheers, Brian
@dhindsjr
@dhindsjr 3 года назад
Tim, you have become a must need for any inexperienced scientific person who loved space travel! Thanks !!
@harrisbinkhurram
@harrisbinkhurram 3 года назад
Thank you Tim, loved every bit of it. I had a few questions which were answered beautifully. However I'd love to have Scott's videos linked here, going to manually search for them now.
@edwardturner2308
@edwardturner2308 3 года назад
This presentation was pure "space- tech" candy to me. Good stuff.
@0x450
@0x450 3 года назад
I have seen every single one of your videos from the start Love from Greece!
@LRRPF52
@LRRPF52 3 года назад
My first job at Douglas MSSD involved re-entry dynamics and orbital mechanics. The math was really challenging, and very fun.
@reinormand
@reinormand 3 года назад
Excellent video as usual. Best channel on youtube
@SimonVovko
@SimonVovko 3 года назад
Educational. Great video.
@bobbailey4954
@bobbailey4954 3 года назад
Excellent production and subject matter thank you
@fredbm01
@fredbm01 3 года назад
thanks for all the information, makes things much easier to understand
@kenhelmers2603
@kenhelmers2603 3 года назад
While I had most of that process in my head, you definitely put it together! Thanks Tim :)
@spaceenthusiast7160
@spaceenthusiast7160 3 года назад
Great video! Thank you!
@Flightcoach
@Flightcoach 3 года назад
Great work, enjoying every minute. You are one of my examples as a prof tuber too!
@sonnyburnett8725
@sonnyburnett8725 3 года назад
I recall reading that the Apollo capsule had it’s capsule angle shape because had it had been any taller, heat during reentry would have burned the upper half because of entry airflow.
@Spedley_2142
@Spedley_2142 3 года назад
Nicely timed video! :)
@filyn
@filyn 3 года назад
When I thought it couldn't get more exciting, Tim as always made it a hundred times more exciting!! Love attention to details✨
@ceci9933
@ceci9933 3 года назад
Thank u for the video!!! I was wondering why the time it takes to land can vary so much and why they arent landing using the super dracos instead of splashing down- so this video really helped answer the questions I had about it -Can’t wait for the stream later
@bval2201
@bval2201 3 года назад
Excellent video.. Thank you
@PObermanns
@PObermanns 3 года назад
As always, a super-informative video!
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