کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8131701 | 1523263 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling approaches for precise relativistic orbits: Analytical, Lie-series, and pN approximation
ترجمه فارسی عنوان
رویکردهای مدل سازی برای مدارهای نسبیت دقیق: تقریبی تحلیلی، لای سری و پین
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
چکیده انگلیسی
Within the post-Newtonian approximation of General Relativity, modified orbital equations are obtained by adding relativistic corrections to the Newtonian equations of motion. We analyze the accuracy of this approximation with respect to the general relativistic setting. Therefore, we solve the post-Newtonian equation of motion using the eXtended High Performance Satellite dynamics Simulator. For corresponding initial conditions, we compare orbits in the Schwarzschild spacetime to those in its post-Newtonian approximation. Moreover, we compare the magnitude of relativistic contributions to several typical perturbations of satellite orbits due to, e.g., solar radiation pressure, Earth's albedo, and atmospheric drag. This comparison is done for our test scenarios and for a real GRACE orbit to highlight the importance of relativistic effects in geodetic space missions. For the considered orbits, first-order relativistic contributions give accelerations of about 20â¯nm/s2 and are dominant in the radial direction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 62, Issue 4, 15 August 2018, Pages 921-934
Journal: Advances in Space Research - Volume 62, Issue 4, 15 August 2018, Pages 921-934
نویسندگان
Dennis Philipp, Florian Woeske, Liliane Biskupek, Eva Hackmann, Enrico Mai, Meike List, Claus Lämmerzahl, Benny Rievers,