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Celestia's orbit for the ISS is out of date. How can I get a better one?
The orbit of the International Space Station changes continuously in ways that are almost impossible to predict due to things like atmospheric drag, light pressure, cargo ship docking, etc. If you want an accurate orbit, you'll have to update it on a daily basis.
ISS TLEs (Two Line Elements) are posted to the AMSAT SAREX mailing list regularly by "Dave Larsen PhD". [3] Here are the ISS TLE orbital parameters for August 16th, 2004:
ISS
1 25544U 98067A 04229.23839543 .00019757 00000-0 15906-3 0 4532
2 25544 51.6323 19.1941 0005251 117.9988 304.8582 15.70921896327755
Grant Hutchison has provided a spreadsheet to convert TLEs into Celestia SSCs[4] Also, don't forget that Celestia models the shape of the Earth using a spheroid. The actual shape of our planet is much more complicated. As a result, a view from the Earth's surface in Celestia is not accurate enough to show the correct path across the sky of satellites in low Earth orbit like the ISS. Another issue is that Celestia v1.5.1 and earlier use a fixed rotation speed for the Earth. Since the Earth's rotation is variable, the surface of Celestia's Earth is displaced from where it should be. Celestia v1.6 will use a more accurate variable rotation speed. In other words, you can't use Celestia to find out where to look in the sky to see the ISS.
Originally posted by Anti-Evil
reply to post by Phage
Yea, its obvious the software would just trash your theory - thats why I linked you to it. why answer something when the math doesnt add up.
with the story. sorry - thats what we are debating until your sidetracking on nonsense. if you want your answers then use the software.
Originally posted by Anti-Evil
reply to post by Phage
well, you see you really should not assume. because you see I'm waiting on the Logs themselves to prove the software wrong. I see no need for software that lies...
Originally posted by JackWestJr
The darn towers were brought down by controlled demolition. Anyone with half a brain knows that. .
Originally posted by A W Smith
Originally posted by JackWestJr
The darn towers were brought down by controlled demolition. Anyone with half a brain knows that. .
those of us with a full brain disagree. Try to borrow some additional brain cells and struggle to post on topic for the thread you are posting in. mmkay?
Originally posted by ipsedixit
reply to post by weedwhacker
This suggests another way it could have been done, with advanced planning. Use the fuel and engines from an unmanned cargo vehicle from earth to raise the orbit when it docked at the station.
Commander Frank Culbertson and Flight Engineers Vladimir Dezhurov and Mikhail Tyurin occupied the International Space Station for 117 days from August 2001 through December 2001.
ISS is over NYC on 911 instead of Africa