![]() The program can be configured to download images from password-protected websites, forum threads, even social networks. And you can instantly view the downloaded files in the built-in image viewer. ![]() But not only images! It allows you to download music, video or any other files - just enter the website address, choose what files to download and where to save them and let Extreme Picture Finder do the rest for you. Download all images from any website automatically and very fast. The results show that the minimum relation perturbation conditions can reduce the J 2 effect significantly when the orbital element differences are small enough, and they can become rules for the design of satellite formation flying.Extreme Picture Finder is a powerful batch image downloader. Finally, the minimum relation perturbation conditions are established in order to reduce the influence of the J 2 effect. The relationship of relative orbital elements and J 2 effect is obtained through simulations. In addition, when J 2 perturbation is concerned, we also find that the semi-major axes of the leading and following satellites should not be the same exactly in order to decrease the J 2 effect. They are distortion and drifting, respectively. Secondly, on the basis of the analysis of J 2 effect on relative orbital configurations, we find out that J 2 effect can induce two kinds of changes of relative orbital configurations. ![]() These shapes can be lines, ellipses or distorted closed curves. Firstly, under the condition of non-perturbation, we obtain many shapes of relative orbital configurations when the semi-major axes of satellites are equal. ![]() ![]() In this paper, the relative orbital configurations of satellites in formation flying with non-perturbation and J 2 perturbation are studied, and an orbital elements method is proposed to obtain the relative orbital configurations of satellites in formation. ![]()
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