Mathematical Problems in Engineering / 2009 / Article / Fig 6

Research Article

Some Initial Conditions for Disposed Satellites of the Systems GPS and Galileo Constellations

Figure 6

Black dots: represent ( 𝜔 , Ω ) values such that a satellite with a = 30,647 km remains at least 250 years with 𝑒 M A X 0 . 0 1 . Green dots: the same, but 𝑒 M A X 0 . 0 2 . Blue dots: curve satisfying 2 𝜔 + Ω = 0 . Moon’s inclination: IL = 18.28°. Note that most of the “stable” (black dots) ( 𝜔 , Ω ) points satisfy 2 𝜔 + Ω = 0 , 2 𝜋 with Ω 0 , 𝜔 = 𝜋 .
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