Does anyone recognize this precession matrix?

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The discussion centers on identifying the origin of a precession matrix found in a jpg file, with a suggestion that it resembles content from a specific book. The matrix is noted to be relevant only for a few centuries around the current time. A modern method for understanding precession is linked to a 1976 paper by Lieske and others, which can be accessed through well-stocked university libraries. One participant successfully located this paper at UC Berkeley and recommends using online catalogs to find similar resources. Overall, the conversation highlights the importance of academic resources in studying precession matrices.
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Anyone know who was the originator of the matrix in the jpg file?
 

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That looks like something out of http://www.uscibooks.com/seid.htm -- I remember seeing similar-looking formulas in it long ago.

In any case, that looks like it'll only be good for a few centuries around our time.
 
Thanks. The book costs about $75, but it's possible that I might get an inter library loan from some university here in Calif.

I think the modern method is based on a 1976 paper by Lieske, et al. Expressions for Precession Quantities.
 
You'll likely find a copy at some well-stocked university library. I once found a copy at the UC Berkeley campus library. You can search the UC catalog online at http://melvyl.worldcat.org/ I did so, and indeed it was there. You may also be able to search other university libraries from your home.
 

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