Does anyone recognize this precession matrix?

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    Matrix Precession
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Discussion Overview

The discussion revolves around the identification of a specific precession matrix presented in a jpg file. Participants explore its origins, related literature, and potential resources for accessing relevant texts.

Discussion Character

  • Exploratory, Technical explanation, Meta-discussion

Main Points Raised

  • One participant inquires about the origin of the precession matrix shown in the jpg file.
  • Another participant suggests that the matrix resembles content from a specific book, referencing a website where similar formulas can be found.
  • A third participant mentions that the modern method for precession is based on a 1976 paper by Lieske and colleagues, indicating a historical context for the matrix.
  • Further, a participant provides advice on locating the book in university libraries, sharing a specific example of a library where it can be found.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the origin of the matrix, and multiple references to literature and resources are provided without resolving the inquiry.

Contextual Notes

There is an assumption that the matrix is relevant for a limited time frame, as noted by one participant, but this is not universally accepted or confirmed.

Who May Find This Useful

Individuals interested in precession matrices, historical methods in astronomy, or those seeking resources in university libraries may find this discussion relevant.

solarblast
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Anyone know who was the originator of the matrix in the jpg file?
 

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  • Precess_Matrix.jpg
    Precess_Matrix.jpg
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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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