Three-Apogee 16-h Highly Elliptical Orbit as Optimal Choice for Continuous Meteorological Imaging of Polar Regions
Three-Apogee 16-h Highly Elliptical Orbit as Optimal Choice for Continuous Meteorological Imaging of Polar Regions
复制标题
三远地点16小时大椭圆轨道作为极地连续气象成像的最佳选择
DOI：
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发表时间：
2011
期刊：
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通讯作者：
L. Trichtchenko
中科院分区：
文献类型：
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作者：
A. Trishchenko;L. Garand;L. Trichtchenko
本文提出了一种周期为16小时的高椭圆轨道（HEO），用于双星星座对极区的连续气象成像。这一轨道的特点是有三个远地点（TAP），相距120°。这两颗卫星相距8小时，在2天内可重复地面轨道。与先前的研究（Trishchenko和Garand）中详细描述的Molniya 12 h轨道相比，突出了优势。轨道参数（周期，偏心率和倾角）作为优化过程的结果。轨道优化的原则是基于以下四个关键要求：空间分辨率（远地点高度），在赤道穿越被困质子区的高度（最小化被困质子造成的辐射剂量），在极地地区的成像时间，以及轨道的稳定性，这主要是由近地点的旋转定义。这些要求之间的相互作用指向一个16小时的周期与偏心率.
AbstractA highly elliptical orbit (HEO) with a 16-h period is proposed for continuous meteorological imaging of polar regions from a two-satellite constellation. This orbit is characterized by three apogees (TAP) separated by 120°. The two satellites are 8 h apart, with repeatable ground track in the course of 2 days. Advantages are highlighted in comparison to the Molniya 12-h orbit described in detail in a previous study (Trishchenko and Garand). Orbital parameters (period, eccentricity, and inclination) are obtained as a result of an optimization process. The principles of orbit optimization are based on the following four key requirements: spatial resolution (apogee height), the altitude of crossing the trapped proton region at the equator (minimization of radiation doze caused by trapped protons), imaging time over the polar regions, and the stability of the orbit, which is mostly defined by the rotation of perigee. The interplay between these requirements points to a 16-h period with an eccentricity...