利用观测三角视差确定人造地球卫星的距离
Determining the Range of an Artificial Satellite Using its Observed Trigonometric Parallax
摘要：
观测人造地球卫星是天文学中一个相对较新和独特的分支，非常有趣和充满活力。观察这些天体的一个具体方面是，尽管它们像深空天体一样出现在天体背景中，但它们在背景中的明显位置取决于你在给定时间站在地球上的位置。这种效果被称为视差。当在特定时间从特定位置观察卫星时，可以使用天体测量方法确定卫星的赤道坐标。然而，除非观测者知道卫星的精确轨道要素，或者很容易进入雷达站，否则它距离观测者的距离仍然是未知的。然而，当两个或两个以上的观测者，相隔一定距离，同时观测同一颗卫星时，他们的观测结果可以用来确定卫星的距离，使用卫星的观测三角视差。
英文摘要：
Observing artificial satellites is a relatively new and unique branch of astronomy that is very interesting and dynamic. One specific aspect of observing these objects is that although they appear amongst the celestial background, as deep-sky objects do, their apparent locations amongst this background depend on where you are standing on Earth at a given time. This effect is known as parallax. When a satellite is observed at a specific time from a specific location, the satellite's equatorial coordinates can be determined using astrometric means. Its range from the observer, however, is still unknown unless the observer knows the satellite's precise orbit elements or has easy access to a radar station. However, when two or more observers, separated by some distance, observe the same satellite at the same time, their observations can be used to determine the range of the satellite using the satellite's observed trigonometric parallax.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
