淡紫色花
发表于 2025-3-23 12:10:55
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多山
发表于 2025-3-23 17:49:06
Grundlagen und Fortschritte der Ingenieurwissenschaftenhttp://image.papertrans.cn/i/image/474476.jpg
种子
发表于 2025-3-23 21:02:39
The Simplified Two-Body Problem,, that we may simplify the problem by setting . This permits us to assume on the one hand that the satellite’s motion is dictated by the master, and that, on the other hand, the master’s motion is not influenced by the satellite. For convenience, we can now assume that the master is fixed in space a
施加
发表于 2025-3-24 00:17:41
Kepler Orbits,er orbit The second focus is unoccupied and is referred to as the . F. (Figure 2.1). Kepler orbits are ., whose equation in polar coordinates with origin at the occupied focus is . with . as . (or .), and 6 as ..
进取心
发表于 2025-3-24 05:24:41
Orbit Insertion,forces due to solar wind, air resistance, the magnetic field, etc., then the motion of the spacecraft is exclusively determined by the gravitational field of the master mass. At the moment of burnout, the spacecraft is located in the . of its orbit The elements or the orbit are determined by the . a
认识
发表于 2025-3-24 08:38:07
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不爱防注射
发表于 2025-3-24 14:45:52
The Gravitational Potential, shall refer to this source as the .. If a second mass, which we shall refer to as the ., is located in the potential of the master, it will be attracted by the master with an attraction force, whose magnitude and direction is defined by the potential at the location of the satellite. The gravitatio
Mucosa
发表于 2025-3-24 15:59:41
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affluent
发表于 2025-3-24 19:56:30
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沐浴
发表于 2025-3-24 23:13:25
Satellites in the Earth-Moon System,excepted. The ratio Moon mass/Earth mass is 1:81.3, representing a comparatively large value. Earth plus Moon are therefore often looked upon as a double star. The Moon ranks fourteenth amongst the bodies of the solar system: only the nine planets, Jupiter’s trabante Ganymede and Kallisto, Saturn’s