How James Webb's Deployments MUST Work
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- čas přidán 2. 05. 2024
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The James Webb Space Telescope launched, but now its deployments must work. Even though the launch was successful, the hardest part is yet to come. We'll take a look at each of the deployment steps and understand why Webb has to be so complex to accomplish its mission.
00:00 Launch of JWST
02:19 Second Mid-Course Correction burn
04:09 Magellan TV
04:50 Webb's Requirements
08:28 Unitized Pallet Structure Deployment
09:11 Deployable Tower Assembly
09:53 Aft Momentum Trim Tab
10:34 The Sunshield
12:52 Sunshield Deployment
14:40 Secondary Mirror Support Structure
15:37 Aft Deployed Instrument Radiator
16:17 Primary Mirror Wings and Alignment
17:27 L2 Orbit Insertion and Commissioning
18:07 Contingency Operations
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🔴Port mirror wing deployment has begun! The wing only needs about 5 minutes to rotate into position, but will need at least two hours to latch it into place. That's probably why the starboard wing doesn't open until tomorrow. But we're on the final approach to an unfolded telescope!
James Webb update James Webb update James ware update for today
I'm somehow so anxious about each steps of this mission because my biggest wish for 2022 is to see my best musical buddy being able to see the first pictures out of Webb. He worked on building one of the pieces of this telescope, and talked about it for so long each time we were jamming. Sadly his health went deep critical a few months ago, and may have only few months left. So happy he's still here and finally saw the launch. Let's wish now for him to see the first stars pictures in a few months. I really wish
I worked on the sunshields for this amazing project. Particularly on seaming the Kapton film together into 3d shapes, and also packaging and deployment.
Truly an honor to work on.
Holy moly this will look impressive on your cv.....great work, I can't imagine the stress levels on this project.
thank you for your service to humankind!
Did it pay well?
How did you get the opportunity to work on this??
Outstanding, Kevin, and thanks!
One of the clearest and most straightforward explanations I've seen. This answered several questions I had about the design and why certain features exist. Thank you.
I totally agree with you.
Thanks, I'm glad it was helpful!
Yeah and that's all they have is talk, no actual physical proof.. it's all in the language and the maths .. you can tell earth is so curved because it looks so flat right?
Agree, this finally answered a lot of the questions I had about the telescope :) I hope there'll be more videos like this as the mission progress.
@@robstringer100 Have you forgotten to take your meds ?
The speaker in this video does an OUTSTANDING job. His voice, expressions, and gestures are perfect. I follow a few science CZcams channels, and I've sort of resigned myself to the croaking and twitching of the people in front of the camera. This guy, by comparison, is a pleasure to watch and listen to.
Thank you very much, I’m flattered!
And he's funny.
@@Vlasko60 and friendly.
Gotta disagree. He said the telescope might be moving too "slow" rather than too "slowly" when talking about the second burn and its importance. That's a pretty big language fail in not knowing the difference between an adjective and an adverb and far from perfect. I was really into it before he said that though.
@@Ojja78 I'm not sure if this is sarcastic, but nitpicking on something as small as this seems pretty ridiculous
🔴 UPDATE: JWST's forward and aft UPS' deployed (and I updated the thumbnail of this video because I'm a total nerd)!!!!
This could have been far better designed. Northrup Grumman should have their company seized for extorting taxpayers and refusing to cooperate with oversight over 2 decades
@@EarthCreature. Which design would've been better?
@@thatguy7595 *Any* design that didn't have 344 single point failures obviously. They spent 2 decades extorting taxpayers for 344 possible failures.
@@EarthCreature. Yep. Even a folded petal system would have been far superior and far simpler. This is how Northrup Grumman justified taking $20B. They also refused to let NASA oversee their progress because I guess taking our money is easier that way. Think it was 2010 they clutched their pearls at the thought of us ensuring our project got made on time.
@@EarthCreature. except NG bought the company that had its project chosen after it was chosen
🔴UPDATE: The sunshield covers have been released and rolled back to their staging position. This procedure alone required several mechanisms to fire just exactly right and they did! Thumbnail updated :)
If there is lets say a MAJOR issue that cannot be corrected...couldn't JWST technically burn to return to earth orbit so at least it could be serviced and then fired again later back to L2? I know this would be insanely costly but much less than losing the entire thing.
I don’t know if it has enough delta-v to turn around and burn for home but even if it did, doing so would expose the telescope to the sun, causing it to overheat well beyond limits. That would render the telescope unusable at that point.
@@rowenhusky No, of course not.
You do the best work on JWST.
Thank you 🙏
🔴WE HAVE A TELESCOPE! I was making a "halfway there" video following yesterday's sunshield deployment, but then they went and moved up the secondary deployment to today, TWO DAYS earlier than planned. In the meantime, the most critical deployment since the solar panel is out of the way! Without it, there's no way to use Webb. but now it's possible!
I thought it would be a telescope once the two side panels of mirrors deployed?
Overall this is great news as I still feel scarred from the Hubble mirror debacle back in 1990! lol
Where can I find one of those puns? I've been waiting for over a decade in positive thought for its deployment.
Where can I get one of those pins?
@@jc4evur661 He mentioned that the center panels alone would still be enough to function, but of course, the side panels would be optimal
@@stevencp Thanks!
🔴 UPDATE: The Deployable Tower Assembly (DTA) successful! Thumbnail updated :)
Really? You guys still believe this garbage?!! What a joke!!’
It’s so sad!!
@@truthiscriminal Just because you're stupid doesn't mean the rest of us are too.
@@truthiscriminal reported for harassment
@@truthiscriminal You're the joke bud.
@@truthiscriminal here's the attention you ordered.
What an incredibly well made video!. Thanks so much
Glad you enjoyed it!
The ingenuity of the human mind on full display. A true international collaboration. So very glad to be alive to see this.
Agreed, I think this is humanity at its best.
I couldn't agree with ya anymore!!!
I couldn't agree with ya anymore!!!
But also many years of delays.
Dude, you've spoken TRUTH. :)
OMG, the number and complexity of the deployments is astounding (and worrisome)!! I truly hope all goes as planned.
let us hope together my friend
I will join the hoping my friends
May I also join the hoping
I'm a little late to the hope party, but I hope not too late.
It’ll be fine ;)
25 years and the equivalent of almost 5 days of US military spending on the line.
That's a big commitment dependent on so many things going just right.
What commitment? The funds or the time?
@@James_the_Builder Both.
🔴 UPDATE: The Aft Momentum Flap is deployed. Thumbnail updated :)
this is too exciting!
Thanks for the update!
omg YESSSS
@@tofugitive exciting and nerve wracking haha. Fingers crossed for the sun shield!
With the greatest respect in place I'm asking "Do you know that because of the data you saw or what they reported?"
I have been searching for this very type of information for 2 days now. I know there are videos that describe the deployment and manouvers made before launch of the telescope, but I want the most up to date information and explanations in layman's terms. I will share this video for sure.
Yes, same!!!
Thank you for such clear and understandable explanation or a lay person Ike me
As a kid I witnessed the first moon landing and saw the capsule up close after it's return. Back then it seemed rugged, crude, built to withstand heat and a lot of forces. In contrast this space instrument is an example of an extremely precise and well thought out combination of structures that operate in unison so that each component can play its vital part. Like the Apollo capsule, it needs to cope with the extreme environment of space, yet this seems to be 'brain in stead of brawn-design' . I am very very impressed indeed. I can't wait to hear & see more about it's progress. Thank you for your presentation.
Willem
The Apollos capsule had to withstand a lot more physical force (friction, air pressure) than this telescope. Very different task
Willem. At 73 I too remember the first moon landing as well as the headlines (newspapers..yes paper) of Sputnik. My father told me of the very first fly-over, he witnessed as a kid, of an airplane over New York. What we're seeing now is spectacular! And just as ground-breaking.
My only concern is that there are SO MANY critical things that have to work perfectly the first time. Keeping my fingers crossed for all to go right!
Different missions. Apollo had to protect human life.
Excellent video!
That was a wonderful explanation of the steps needed to make this very cool telescope work. Thank you for posting.
Hehe, 'very cool telescope' - I see what you did there.
This was the best JWST explainer video I saw! No distracting vfx, no music, no bs filling extreme oversimplifications. Magnificent work sir. Subscribed
Thanks, and I'm glad to have you along for the ride!
🔴UPDATE: Sunshield tensioning underway! After going late on New Year's Eve, the team took the day off on Saturday and then Sunday elected to better characterize Webb's behavior now that it's in space. So sunshield tensioning was delayed until today and began this morning. This will continue for the next 2-3 days until fully deployed! Thumbnail updated :)
"to better characterize Webb's behavior" What does this mean?
@@jc4evur661
There are always slight differences between the way the spacecraft systems operate in space, versus during ground test. Although they try to replicate the space environment as well as possible during ground test, it isn't possible to get this perfect.
They are examining lots of data - temperatures, battery condition, power usage, solar panel output, etc., to make sure everything is within required ranges. As of Monday Jan. 3rd, they have made two tweaks:
1. Solar panel regulators have been adjusted to match power needs better. These were initially set to factory defaults, but they have now been individually optimized.
2. Shield tensioning motors were a few degrees warmer than they wanted, so they adjusted the spacecraft attitude for a while, to reduce sun exposure and get them down to the desired temperature.
@@marianneoelund2940 Thank-you...Now I'm seeing why it cost so much! lol
Wish they put cameras on it so we can see how it is going. Prob would help mission control to handle issues as well.
@@navychop6667 probably because when this was initially designed cameras were the size of a fridge ;)
Human engineering and our ability to work toward a singular goal is astounding. Well done to the 100’s of people who helped get us here.
1000s
@@aj7907 happy to be corrected ! 🤟🏻
I think there was an article today from NASA stating that the perfect delivery from Ariane 5 and ESA and the saving of fuel because of that extents the mission duration over the 10 year mark already. 🙂
NASA has said that refueling Webb would be difficult but possible robotically.
I know people comment all of the time and say “this is the best channel for *fill in the blank.” But you truly have a gift for explaining things so well. I can’t imagine the time it takes to gather all of the information and break it down for layman terms.
Thank you so much, I really do appreciate that.
Nothing ever goes exactly the way we envision it. That's a simple fact of life. But wouldn't it be mind-blowing to hear that *everything just worked?*
As always, great video. Thank you for covering the deployment steps in so much detail! I have not seen any other video do that. Looking forward for the detailed video on JWST's optics.
Thank you, thank you! A well thought out and helpful explanation of the whole process of Webb’s deployment!
ur welcome lil buddy :)
🔴UPDATE: Starboard mid-boom deployed! 107 release mechanisms (which ALL worked) later, and the sunshield looks like a diamond!
Let's gooo, but i think i will relax only when the tensioning part happens
How many of the 344 single point failures have we cleared at this point?
@@pipertripp With the shield deployed, more than 250, i think with the tensioning part we can clear a lot more of them
@@gabriela5790 cheers mate. Remind me when the shield will be fully deployed. On tenterhooks waiting for this bloody thing to be sorted.
@@pipertripp you sound like a fellow Australian! I was so anxious with the delay this morning, but with 250/344 single point failures and the worst of them almost behind us, my confidence has soared.
I'm from Germany and i love astrophysics, that's one of the best decleration of the JWST i ever seen, thank you for that amazing work!
Well explained! Good teaching!
Thank you, and good luck to all involved in this exciting project!
Great explanation of a complex telescope deployment, thank you. I sure hope everything works as expected.
This was so very informative. I applaud the effort put into this video. Keep giving us great content ! 👌
Awesome video! I had to stop and rewatch several times because I was so intrigued by something you said, I lost track of the next topic you started talking about. I also like your voice. It is clear and crisp, perfect for narration. Thank you for making videos like this for us armchair astronomers. Your animations are so amazing. This is top quality, professional work. The pinnacle of production. Thank you for sharing your knowledge and amazing work.
Wow thank you for this! Looking forward to you covering this mission!
It's crazy how excited I am for a space telescope. I legit can't wait for it to start sending back new discoveries!
Thank you for the detailed description, I hope everything goes as planned and in June we could get feedback from the telescope!
WHAT A TIME TO BE ALIVE!! I'M 29 YEARS OLD AND HAVE BEEN FOLLOWING SINCE THE BUILD BEGAN!! LETS GO!!! WOW!!!
Thank you! I’ve been looking for this information and couldn’t find anything nearly as concise and cleanly delivered. I subscribed!
This is a very educational video. Like many others, I've been waiting for this to launch for a long time. The calculations and planning put into this is impressive. I hope everything goes well, and this works as promised.
Amazing content! Thank you for this. Definitely subbed to you. I will be closely following this marvelous piece of technology bringing a new era of cosmology and astronomy to us all.
Feeling a bit anxious about everything working as planned, for this to become the most important instrument for us to understand the universe, instead of becoming the most expensive and horrible tech catastrophe. The live launch had me gripping my armrests pretty tight 😟😄
I felt the same way. I was as emotional for this launch as I was for the daughter's college graduation.
Thanks, I'm glad to have you both along for the ride!
Been watching a lot of your old videos and just wanted to say, I’m so thrilled your audio is fixed! 😂 You have a great voice, and its nice to hear it in headphones without changing my settings. Great video, can’t wait to see future space telescope content! Cheers!
this is the explanation video i was looking for! dont know why not many people arent more excited about the jwst... whenever i share stuff like this on fb i get like only few likes.
anyway great content definitely subbed!
Thanks, and welcome aboard!
Absolutely superb overview of the initial stages of the JWST deployment. I'm glad my 20" dobsonian reflector does not have so many critical steps to get it up and running!
This is the BEST JWST video...and it gets a "FINALLY!"
Those of us that worked on the battery were holding our breath waiting for the Solar Panel deployment. Seeing that come online let us know we did our job correctly. We were only one little part but it felt super important to us.
As actors are wont to say - there are no small roles. Every single 'little' part was essential and the end result is one of Mankind's great achievements. That Arianespace carried off the perfect launch is simply the icing on the cake.
Yes, very well presented, clarifies the deployment a lot. Well Done!
Im just a welder - mechanic but I've been checking up on this project since the beginning and I can't wait to see the first images . Fingers 🤞 . Good luck
You know, I scrolled past a bunch of comments and happened to see yours. And I finally crated a channel just so I could reply to it. A whole lot of people who are "just welder - mechanics" are the ones who built this thing. I spent 10 years as a steelworker and 34 years as a design/consulting engineer, and a drawing doesn't do anything; without the best craftsmen in the world here in the US, nothing gets made. So tip of the hat to you, don't sell yourself short. Keep laying down them rows of dimes - it's an art and a science I really respect.
It doesn’t matter if you’re a welder or a garbage man or the head of the fbi or whatever, this telescope is an advancement for all of mankind 🙏
Wow, very well explained, thank you for that, I'm also very excited and wish NASA and ESA all the best for this mission, which is very important for all of us
Great video! I wasn’t sure how the sideways view was gong to work. Your’s is the first video to explain how it can see everything over the course of the year. Simple and amazing.
This was a super video it was hard to tell where we are with the mission as well as what exactly happened but u explained it well
Congratulations to France and to this team for this spectacular launch, a perfect success! James Webb is on his way to some fantastic discoveries!
I was a teenager when learning about this telescope and now well into adulthood seeing it deploy! Amazing time
Happy new year 2022
Thank you very much for great details
why isnt this channel at 1 million subs yet, such a underrated channel 😫
Thanks a lot Christian, always the most informative experience to watch the LaunchPadAstronomy channel. I`m praying that everything works fine during upcoming weeks for the JWST. My dad was telling me past ten years that he dies before seeing the JWST working. Well, he is now 77 and he is looking forward to see the new era in astronomy. Keeping fingers crossed and a Happy New Year wishing to you a your familly from Slovakia.
My pleasure, and I'm glad your dad is able to witness this. Happy New Year to you as well!
It's so saddening to see some people giving hate to this extraordinary instrument. I'm sure it's difficult to quantify, but it would be a great video to see how these science tools affect our society, and how they're more like an investment, rather than a waste of money.
it's almost unbelievable that some people consider Webb or other nasa projects a waste of money... NASA, ESA, and other technology/science groups should all have UNLIMITED budgets and no limits
They are flat earthers
They think giving more money to Abdul and Shaneequa is more important.Their foolishness could be our doom.
Excellent video! Very descriptive and visual. Thank you!
Absolutely brilliant and highly detailed explanation of the JWST. A must for any space enthusiast!
Absolutley brilliant explaination and I'd defninitly be up for more in depth stuff Christian!! Good Job Sir!
Yeah it's high quality. I want to know about the wheels. He said on stream as sun pushes on the sail, some wheels will spin faster to oppose the push until they reach max speed at which point fuel must be burned to maintain position
This is so damned interesting and exciting! Great job Christian on explaining the entire procedure of webb's deployment in an easy to follow manner! It's an exciting time for planetary and Astro scientists and all of us! I can't wait to see what we start "seeing" in infrared and learning about things we haven't been able to see before. Hopefully we will get a Webb "Deep field" image at some point too! Great job everyone!
This was the most in-depth JWST video I've seen and was presented in a way I could understand. Thanks! 🔭
What a fantastic succinct delivery of a fascinating and crucially important subject. Please keep the updates coming.
Excellent explanation of how the telescope’s numerous parts must deploy and why. Thanks
My pleasure 😇
"Aaaand that's bad." I crack up every time you go there!
Many thanks for this explanation with outstanding clarity.
What an era to be alive.
Wow! Such an excellent description and explanation of the Web mechanical structures and deployment.
I learned so much. Thank you so much.
Ditto
could NOT make it more complex, could they. miracle if it works
CHRISTIAN!!! This was an excellent video!!! I'm glad the launch went well, but we've got a long way to go still!! Thanks for this class!!!! CHEERS!!!!
Thanks mate!
Thank you! I kept looking for information since the launch.. This is the Best I've found till now
Wonderful video. Please, keep updating and thanks for spreading science!
I now have JWSTDA - James Webb Space Telescope Deployment Anxiety.
Me, too!
I'm with you..
🔴UPDATE: Port mid-boom deployed! Starboard mid-boom deploying now!!! Thumbnail updated :)
Thanks for giving us a clear and detailed description of the sequences involved in deploying this telescope. 🙂👍
Very informative explanation. Comprehensive AND comprehensable at the same time. Excellent!
It's truly amazing what science can be done with only 28GB transfer twice a day. That is _tiny_ and yet also monumental at the same time compared to Hubble or Apollo.
The collective blood alcohol of the JWST team on day 29 might be the single most incredible fact of the entire mission.
I'm 62 years old. As a young boy I watched the Apollo missions to the Moon with wonder. I remember Skylab and then the Russian's years of success with their space station Mir. And then the era of the Space Shuttle. Over the decades I watched the Voyagers' encounters with the planets. I remember Hubble's launch, the initial disappointment, and then its repair and maintenance by the Shuttle. And we have now had several rovers trundling across Mars, Cassini and a probe landed on Titan, and nearly two decades of the ISS. I remain in awe of what humanity has achieved.
In some ways the JWST is ambitious beyond all of this. I just hope that it's insanely complex deployment goes well and that I live long enough to have my mind blown once again by what we will learn...
Humanities achievements are awe inspiring. Hopefully we don’t blow ourselves up because people keep arguing over who controls which crevice of the Earth.
@@mensaswede4028 Amen to that, brother...
I'm also 62. The lunar landing in 1969 with the technology at that time is far beyond anything since, including JWST
@@mensaswede4028 nuclear war is inevitable
@@James_the_Builder 😬🌚
i watch space related content often, how have i missed this channel?! very well done explanations.
Thx Prof for breaking it down for us...
I _knew_ I could trust you to keep us fully updated on the nitty gritty details. Im going to sweat each day mentally checking off points of failure till we finally get a commissioned observatory. This is the most exciting space event for as long as I can remember. Only a half dozen or so top this.
This was exactly the walk through of the deployment process I wanted to see, thank you!
Glad you enjoyed it!
@@LaunchPadAstronomy So did I. This episode is certainly sharable to my friens interested in the Webb mission
I totally agree, best walkthrough on CZcams 👍
Awesome video and thanks for the update on the DTA. Happy New Year!
And a Happy New Year to you as well!
best explaination i've seen on this project. Thanks so much!!!!
If NASA can drop a car-sized rover onto Mars from a rocket propelled pogo stick I am sure this one will be easy! Great video btw.
when you put it that way, it sound much better for JWST... lol.. 🍻
As a project manager, I am in absolute awe at the logistics and planning that must go into these Nasa projects. While there is beauty in "Keep it Simple Stupid" there is pure wonder when something insanely complicated executes flawlessly and delivers far greater results.
I'd bet the flowchart is on the biggest wall that NASA could find...
Thank you for the explanation and update!
My pleasure!
Wow i can not believe how much new things i learned about Webb in this video although i am into this for years and thought that i knew most of what i could understand. Excellent content midvideo subbed and looking forward to watch previous and future ones
excellent vid.
Now I understand why James Webb Telescope was delayed countless times for years. One single error and poof... there's your $10B space junk. This is a masterpiece of an engineering, so much complex ways for it to work, mad respect for those who made this possible for us earthlings to know more of the secrets the universe has store for us, it's gotta be mind boggling to even comprehend about.
Thanks that is the best "low down" I have seen/heard
Brilliant video , answered all my questions and more .
Thankyou so much 👍
Thanks!
oh wow.. i was wondering when it would unfold, but no one in the audience of the livestream i was watching answered my question. now i see it's not a simple answer :-)
You just answered several questions I had that I wasn't seeing addressed in the many other JWST videos I've been watching. Thanks!
Great job explaining what is happening.
This was very informative and easily understood. Thanks.
Very well presented and articulated! Best one on CZcams!
If it's fully deployed and then Webb reaches the L2 point and the final booster manoeuvre is initiated to make that almost 90 degree change in flight path, at that speed, wouldn't there be potential damage to the structure? Of course... I know they've thought it through! I really want it to go all the way successfully.
Good question. I’m guessing they’ve taken the accelerations into account, and it’s actually not a very high thrust maneuver because by that point it will barely be moving fast enough to reach L2!
@@LaunchPadAstronomy Thank you! Yes, if it slows down by that much, then all is well!
High-quality vid, thanks!
Great video, very informative. Thanks for posting.
If the JWST, with a projected lifespan of 10 years, had been launched in 2007 as it was originally planned, then it would be history by now.
Good launcher performance has led NASA to say they now expect it to have a lifespan closer to 20 years!
@@okankyoto that's remarkable.
Great video ! Left a subscription.
I'm wondering how they get precise enough position readings that far away from Earth and what the margin of error for position determination is, to get James Webb safely into its L2 orbit.
They are measured from Earth, using the radio link. Distance is by sending a signal to JWST, then timing the echo. The Doppler on that gives the speed (down to mm/s). Lateral position is a bit less accurate if they use one station on Earth, but they could triangulate.
@@zounds010 Yeah, the lateral part is what concerns me. Not much of a triangle at that distance.
@@Capt.Turner Lateral position would've been sorted out within the first 2 burns when it was close enough to Earth for regular old triangulation. The farther out it gets, the more fuel lateral corrections would take.
Excellent and informative presentation indeed; I thoroughly enjoyed it. Thank you.