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What does ephemeris mean?

Looking for the meaning or definition of the word ephemeris? Here's what it means.

Noun
  1. (obsolete, singular or plural) A journal or diary.
  2. (astronomy) A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination
  3. Software that calculates the apparent position of celestial bodies.
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Note that downloaded Demo version contains abbreviated help files, atlas, and ephemeris.
Leap seconds are inserted only for human convenience, and eclipse phenomena are computed using astronomers' dynamical or ephemeris time systems.
The navigation message contains the satellite ephemeris, which is a numerical model of the satellite's orbit.
The results of the solution of the least-squares equation are used to update the ephemeris and attitude values of each orbit path.
Take in hand, then, the ephemeris for the year of your birth and read this chapter with it in view.
They were obtained using adjustments orbits, they are not independent of methods and planetary ephemeris used for their determination.

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