Orbits...

[Albert_275]

I was wondering...
If satellites move faster, they manage to grab a higer altitude, right?
Was that why usually satellites have to orbit the earth several times before escaping its gravitational pull?

[withak]

I think the whole point of satellites is that they don't escape the earth's gravity. :)

But yes, if you want to move to a higher orbit then one way to do that is to speed up.

Here's a page that talks about the relationship between orbiatl speed and altitude:
http://en.wikipedia.org/wiki/Orbital_velocity

[Guest_Jim_*]

if you want to move to a higher orbit then one way to do that is to speed up.
I don't think so, because relative to the sun isn't Pluto in a higher orbit than the earth but it takes about 248 earth years to complete one orbit. Also, according to Wikipedia, the earth's average orbital velocity is 29.783 km/s whereas Pluto's is 6.112 km/s.

[withak]

Originally posted by Guest_Jim_*@Jan 10 2006, 05:47 PM
I don't think so, because relative to the sun isn't Pluto in a higher orbit than the earth but it takes about 248 earth years to complete one orbit. Also, according to Wikipedia, the earth's average orbital velocity is 29.783 km/s whereas Pluto's is 6.112 km/s.
Quoted post


Mass matters too, in addition to the shape of the ellipse.


Orbital mechanics is a pretty cool field (http://en.wikipedia.org/wiki/Hohmann_transfer_orbit)

More than you ever wanted to know about planetary orbits (http://en.wikipedia.org/wiki/Planetary_orbit)

[PSK]

Have any of you tried the new version of Mashi's Satellite tracker Plugin? (http://www.mashiharu.com/). It's not working for me, i don't know why. Could it be a Problem with .NET 2.0?

Mass matters too
I don't think, Mass matters. But for sure Jim is right: objects in far Orbits move slower than in close orbits.

but withak is right too:
if you want to move to a higher orbit then one way to do that is to speed up.
But when you reach the higher Orbit, you have to slow down again to stay in that Orbit.

[bull]

Yep I've tryed that sat plug-in, it works fine in punt but not worldwind, I haven't checked the code yet maybe it's something simple.

[TomServo]

Originally posted by bull@Jan 10 2006, 07:32 PM
Yep I've tryed that sat plug-in, it works fine in punt but not worldwind, I haven't checked the code yet maybe it's something simple.
Quoted post



Think you answered you're own question there bull ;)

[PSK]

Originally posted by bull@Jan 11 2006, 01:32 AM
Yep I've tryed that sat plug-in, it works fine in punt but not worldwind, I haven't checked the code yet maybe it's something simple.
Quoted post

I don't get Punt to work unfortunately. :(
hopefully someone will look into it and make it work.

[PSK]

there seems to be a problem with the Data or the data path. I'm getting errors like:

---------------------------

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Failed to read TLE from ISS (ZARYA)
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OK
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am i the only one to think, we're missing a great plugin if we don't get it to work? Usually people can't wait to see things like a satellite tracker. :blink:
I would love to help more with these things, only i have no idea how plugins work, so i can only post the errors and hope for people to solve them :(