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| Определяне на орбита (Задача на Ламберт)× | Маневра с гравитационен асистиращ ефект (или гравитационен проход)× | |
|---|---|---|
| Област | Приложна физика | Приложна физика |
| Семейство | Process / pipeline | Process / pipeline |
| Година на възникване≠ | 1761 | 1961 |
| Създател≠ | Johann Heinrich Lambert | Michael Minovitch |
| Тип≠ | Orbital computation algorithm | Orbital maneuver technique |
| Основополагащ източник≠ | Lambert, J. H. (1761). Acta Helvetica. Physico-Mathematico-Anatomico-Botanico-Medica. link ↗ | Minovitch, M. A. (1961). The determination and characteristics of ballistic interplanetary trajectories under the influence of multiple planetary gravitational fields. Technical Report 32-464, Jet Propulsion Laboratory. link ↗ |
| Други названия | Lambert's problem, Lambert-Godstein trajectory problem | swing-by, gravitational slingshot |
| Свързани | 4 | 4 |
| Резюме≠ | Lambert's problem is a classical astrodynamics boundary-value problem that determines an orbit connecting two points in space given a transfer time. Formulated by Johann Heinrich Lambert in the 18th century, it is fundamental to trajectory design for interplanetary missions and spacecraft maneuvers. The solution provides the orbital elements and velocities needed to transition between two positions. | A gravity assist (or swing-by) maneuver uses the gravitational field of a planet or other celestial body to alter a spacecraft's trajectory and velocity without expending fuel. Discovered by Michael Minovitch at JPL in 1961, this technique is crucial for reaching distant planets economically. It works by exploiting the relative motion between the spacecraft, the assisting body, and the Sun. |
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