- Видео 3
- Просмотров 84 509
OrbitNerd
Добавлен 12 май 2013
Provides a series of short whiteboard videos which explains the field of orbital mechanics (and also attitude dynamics) without all the crazy math.
True Anomaly vs. Mean Anomaly
This video explains what the Mean Anomaly is, how it relates to the True Anomaly, and how to use the Mean Anomaly to propagate a simple 2-body orbit.
In case the links don't work within the video:
orbitnerd.com/blog/2013/6/11/basic-orbit-shapes
orbitnerd.com/blog/2013/8/9/cartesian-vs-keplerian-elements
As promised, here are the scripts which will do the conversions between True Anomaly, Mean Anomaly, and Eccentric Anomaly: github.com/lbaars/orbit-nerd-scripts
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
In case the links don't work within the video:
orbitnerd.com/blog/2013/6/11/basic-orbit-shapes
orbitnerd.com/blog/2013/8/9/cartesian-vs-keplerian-elements
As promised, here are the scripts which will do the conversions between True Anomaly, Mean Anomaly, and Eccentric Anomaly: github.com/lbaars/orbit-nerd-scripts
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Просмотров: 40 516
Видео
Cartesian vs Keplerian Elements
Просмотров 20 тыс.11 лет назад
Provides a quick explanation of the differences between Cartesian and Keplerian Orbital Elements. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. For more videos go to OrbitNerd.com.
Basic Orbit Shapes
Просмотров 24 тыс.11 лет назад
An introduction to the basic shapes for satellite orbits. Covering circular, elliptical, parabolic, and hyperbolic orbits. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. For more videos go to OrbitNerd.com.
Why did you stop this channel. This is really helpful.
So gravity wells must be cone shaped. Science infographics & animations always led me to believe they're curvier.
What a shame only 3 videos were ever made.
What are you doing
You know thoses videos are so usefull I use them as references since years each time I need a remainder ? Thank you.
your videos and teaching style is awesome.
This chanel probably isnt active anymore but if it is, I would love a walkthrough of the second long problem on the USAAAO NAO competition. Its about orbits!
So how are you supposed to do the change in times to true anomaly at 5:30? It looks like the equations work one direction but stop working the other way (since eccentric anomaly is it two places in the equation I found and people say you need to do some brute force methods to get a solution) You skipped the most important part! EDIT - nevermind I created a guesser system in a spreadsheet where I guess E up to how ever many decimal points I want and then check the result against my eccentricity value to find how close they match. Once I reach 100.00000 whatever % match I stop. I use this equation and stop once my eccentricity result sufficiently matches my actual eccentricity: ((M-Eguess)/-1)/sin(Eguess) = e Probably will program this later in python lol
Tomorrow is my exam
concise
concise
Great video! Why did you stop at 3 videos?
I've also heard parabolic orbits happen when satellites leave the orbit with the exact speed as the escape velocity.
L2 orbits can actually do the halo thing you said is impossible but since that’s a 3body orbit it is not actually relevant
Old RUclips videos have the best explanations.
Your videos are good why did you stopped uploading???? Looking forward to ur rply
man im gonna fail...
The site expired D:
This are good videos! Keep making them...!
No longer available man. Sorry... Can you help me out?
Hey mate! Thanks for the video! Studying orbital mechanics at the moment in uni (Space Science) and your simple explanation and engaging drawings have helped me understand the concept so much better than my lecture has!
Website expired...
This is the simplest and best explanation of mean and true anomaly.
I dont get it... why call it a true anomaly when you can just call it angular position? Why complicate things?
Hi, all the links have stopped working. If you click on the links, you get a response that the Website and account have expired, but you could log in as a site owner....could you reactivate the side or place the resources online somewhere else? Please thank you very much! Greetings from Germany.
beautifully explained🌹
Very helpful video, and good method of teaching. 😍💗
22 seconds in and just pausing at that picture I think I already get this more than I did through trying to read wikipedia!
Johannes [joˈhanəs]
I remember my class doin this
Came here for Parabolic orbits (to research more about Neowise)! 😂😂
At 4:30 where does the x axis point to?
Oh my Lord. Thank you SO much for this video! These seemed absolutely inscrutable before but now I get it!
For people coming in late, in the example the value of the semi-major axis is 26500km.
This is kerbal space program :D
Its a pity you stopped making videos. they are awesome and helped me a lot!
Great video!
the link for conversions does not work
NEED MOAR VIDEOS CAUSE YOU ARE AWESOME. kthx
I really loved it.
What if the Keplerian arguments are heliocentric? How do I make them geocentric?
link for the script is not working :( can someone fix it, please?
This is very helpful. Thanks for the explanation!
I love it! I've never been hugely into physics, but now I need it for uncertainty propagation of satellite positions. I'd love to learn about equinoctial elements.
Links in the description doesn't work
I love orbits. I can draw orbits all day without getting bored.
Incredible!!! plz upload more...
Great video, thanks!
Amazing explanation. Good job!
Great video! Now I know why conics are useful.
This was a very useful video! I wanted to grab the referenced scripts, but it looks like the website has expired.