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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Cosmic Research</journal-id><journal-title-group><journal-title xml:lang="en">Cosmic Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Космические исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0023-4206</issn><issn publication-format="electronic">3034-5502</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">683443</article-id><article-id pub-id-type="doi">10.31857/S0023420625020043</article-id><article-id pub-id-type="edn">GOGXTV</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Numerical simulation of a 3U-CubeSat orbit maintenance using electrothermal engine and magnetic attitude control system</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование поддержания орбиты 3U-кубсата с помощью электронагревного двигателя и магнитной системы ориентации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Roldugin</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Ролдугин</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rolduginds@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ivanov</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Иванов</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rolduginds@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tkachev</surname><given-names>S. S.</given-names></name><name xml:lang="ru"><surname>Ткачев</surname><given-names>С. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rolduginds@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mashtakov</surname><given-names>Ya. V.</given-names></name><name xml:lang="ru"><surname>Маштаков</surname><given-names>Я. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rolduginds@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Khokhlov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Хохлов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rolduginds@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Starikov</surname><given-names>K. I.</given-names></name><name xml:lang="ru"><surname>Стариков</surname><given-names>К. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rolduginds@gmail.com</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Keldysh Institute of Applied Mathematics</institution></aff><aff><institution xml:lang="ru">Институт прикладной математики им. М.В. Келдыша РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Geoscan Ltd.</institution></aff><aff><institution xml:lang="ru">ООО “Геоскан”</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Saint-Petersburg State University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2025</year></pub-date><volume>63</volume><issue>2</issue><fpage>169</fpage><lpage>178</lpage><history><date date-type="received" iso-8601-date="2025-06-09"><day>09</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0023-4206/article/view/683443">https://journals.eco-vector.com/0023-4206/article/view/683443</self-uri><abstract xml:lang="en"><p>The study focuses on performing orbit maintenance for a 3U-CubeSat using an electrothermal engine and a simple active magnetic attitude control system. The satellite is equipped with magnetorquers and a magnetometer. As such, it cannot maintain the engine axis attitude along the tangential direction for orbit maintenance. Instead, by realizing a constant dipole moment and damping, attitude along the geomagnetic induction vector is constructed. This attitude is close to tangential on a sun-synchronous orbit near the equator. Numerical simulation of the satellite motion is performed showing capability to provide simple and reliable orbit maintenance. Thrust parameters in uncontrolled motion are analyzed.</p></abstract><trans-abstract xml:lang="ru"><p>Рассматривается задача поддержания орбиты 3U-кубсата с помощью электронагревного импульсного двигателя и простейшей активной магнитной системы управления ориентацией. Аппарат оснащен только магнитными катушками и магнитометром и не имеет возможности поддержания ориентации оси установки двигателя по касательной к орбите. За счет реализации постоянного дипольного момента и гашения угловой скорости достигается ориентация по вектору геомагнитной индукции. На солнечно-синхронной орбите вблизи узлов такая ориентация близка к ориентации по касательной к орбите. Проводится моделирование движения аппарата с выдачей импульсов коррекции при проходе восходящего узла орбиты. Приведены результаты тестирования двигателя в неуправляемом режиме.</p></trans-abstract><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>22-71-10009</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ovchinnikov M.Y., Roldugin D.S. 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