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2伽利略系统进展2.1空间段2.1.1伽利略卫星星座伽利略卫星星座由30颗卫星组成(见图3)。这些卫星均匀分布在3个中高度地球轨道上,其星座构形为Walker27/3/1,并有3颗在轨备份星。卫星轨道高度为23616km,轨道倾角为56°,设计寿命20年。伽利略卫星(见图4)的尺寸为27m×1.2m×1.1m,太阳电池翼展开跨度13m,发射质量700kg,功率1.6kW,
2 Advances in the Galileo System 2.1 Space Sections 2.1.1 Galilean Satellite Constellations Galileo satellite constellations consist of 30 satellites (see Figure 3). These satellites are evenly distributed in three medium and high Earth orbits, with a constellation of Walker 27/3/1 and three in-orbit backup stars. Satellite orbit height of 23616km, orbit inclination of 56 °, design life of 20 years. Galileo satellite (see Figure 4) size of 27m × 1.2m × 1.1m, the solar cell wing span of 13m, launch quality 700kg, power 1.6kW,