After nearly 11 years, I’ve finally decided to pull the plug on Usenet archive:

The page you have requested no longer exists!

But don’t panic just yet!

I’ve coded this page in a way, that it’s monitoring each redirect & capturing data about the thread you’ve requested. Page you’ve requested is still available in Google’s Usenet Archive. You should be able to access it using following URL:

Orbit Calculation..

Note: I can’t guarantee that all pages can be found in Google Groups, but over 90% of the content should be there. If not, try the resources below!

Precovery! – available, which is only sufficient for a preliminary (imprecise) orbit calculation. When an object is of particular interest (such as asteroids with
R. Paul Butler! – As a high school student in 1977, Dr. Butler learned techniques of orbit calculation when he attended the Summer Science Program. List of stars with confirmed
Equatorial coordinate system! – small periodic oscillations of nutation). Commonly used in planetary orbit calculation. True equinox of date is the intersection of the ecliptic of "date"
24P/Schaumasse! – observed by James B. Gibson (Palomar Observatory, California, USA) and orbital calculations by Brian G. Marsden, confirmed the 1976 image was Comet Schaumasse
X/1872 X1! – Pogson believed the object to be the lost Comet Biela, but subsequent orbital calculations have suggested that this was unlikely. Neither Biela’s Comet nor

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