The Jupiter satellites considered here, have the characteristic to be driven inside the Io orbit. We name this satellites family the "family of the inner Jupiter satellites". Three of the four satellites which compose it, Meis, Adrastee and Thebe, were discovered in 1979 by the Voyager probes. Amalthee is the oldest discovered in 1892 by Edward Emerson Barnard.
To observe the planet satellites since the Earth, then to identify them on the images, we must know their position relating to planet. The fact of knowing their position requires to build an ideal model. This model is based on the planet gravitational system environment. Mathematically, it develops thanks to the equations of dynamics and is solved numerically, by data processing. It is thus possible to adjust this model on the observations to obtain a new solution of the movement of these bodies. In this iterative way, we obtain a ephemeride more and more specifies.
We will count the photographic observations and CCD of these satellites, made throughout the world. On each date of observation is associated the result with planetary theory NJO (Near Jupiter Objects) resulting from numerical integration.
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