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Author Topic: Satellite Motion  (Read 7413 times)
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ahmedelshfie
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on: July 22, 2011, 12:21:39 am » posted from:Uberaba,Minas Gerais,Brazil

This applet is other version from Satellite Motion, the original applet created by prof Hwang, modified by Ahmed.

The applet modified by request of Satellite Motion applet from a user.

Well this applet design by Ahmed using knowledge, variables and equations prof Hwang.

Enjoy Wink

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Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
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* Satellite Motion.jpg (124.16 KB, 596x572 - viewed 406 times.)
« Last Edit: August 02, 2011, 01:03:37 am by ahmedelshfie » Logged
ahmedelshfie
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Reply #1 on: July 22, 2011, 12:38:01 am » posted from:Uberaba,Minas Gerais,Brazil

Here some images to help for who interesting about Satellite Motion.

Reference:-

http://www.physicsclassroom.com/class/circles/u6l4c.cfm

http://dean-olmstead.com/more

http://www.satmotion.ru/en/module1/module1_1.html

http://en.wikipedia.org/wiki/Orbit


* motion1.gif (2.53 KB, 258x139 - viewed 412 times.)

* motion2.jpg (27.57 KB, 800x529 - viewed 407 times.)

* motion3.jpg (17.14 KB, 250x164 - viewed 375 times.)

* motion4.gif (135.09 KB, 300x300 - viewed 405 times.)
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lookang
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Reply #2 on: August 01, 2011, 11:26:09 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE

I receive E-mail from prof Wolfgang Christian about Satellite motion applet, i was already contact OSP to if may they like to post the applet that i modified in their website, i need to understand how to modified the applet to be like what Wolfgang Christian suggest, here the E-mail.

Quote
Dear Ahmed—

Thank you for sending me your model.

The applet is very nice and shows how to include images in EJS model.  The images add a lot of realism but this realism may suggest that the scale is correct.  I am worried about the incorrect scale of the satellite image relative to the Earth and the orbital radius of the satellite.  Also, the axis of rotation is not the North Pole.

Wolfgang

I need help to understand this part
Quote
I am worried about the incorrect scale of the satellite image relative to the Earth and the orbital radius of the satellite.  Also, the axis of rotation is not the North Pole.

Thanks in advance

there are some physics issues with the remixed version above.
the time is not in units i can associate with .
dc/dt = 2*pi/24
assumes t is in hours

u can look at my simulation here http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2204.0 which i have made the velocity and radius of planet to scale.

the axis of rotation u need to find an image taken from the axis of rotation, instead of the north pole.
it is slightly off from the north pole.
u can try to make one from google earth.
good luck
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Fu-Kwun Hwang
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Reply #3 on: October 11, 2011, 11:29:52 pm » posted from:Idrija,Bohinj,Slovenia

You can drag the satellite and simulate different trajectory.
You can also check the show velocity to change the velocity,too!

I just modify the satellite image (set draggable to true)!

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
  • Please feel free to post your ideas about how to use the simulation for better teaching and learning.
  • Post questions to be asked to help students to think, to explore.
  • Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
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