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කක්ෂීය වේගය - විකිපීඩියා

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class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_si.wikipedia.org&amp;uselang=si" class=""><span>පරිත්‍යාග</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%9C%E0%B7%92%E0%B6%AB%E0%B7%94%E0%B6%B8_%E0%B6%AD%E0%B7%90%E0%B6%B1%E0%B7%93%E0%B6%B8%E0%B6%A7&amp;returnto=%E0%B6%9A%E0%B6%9A%E0%B7%8A%E0%B7%82%E0%B7%93%E0%B6%BA+%E0%B7%80%E0%B7%9A%E0%B6%9C%E0%B6%BA" title="ඔබ ගිණුමක් තනා පිවිසෙන්නේ නම් මැනවි; කෙසේ වුවත්, එය අනිවාර්ය නොවේ." class=""><span>ගිණුමක් තනන්න</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B4%E0%B6%BB%E0%B7%92%E0%B7%81%E0%B7%93%E0%B6%BD%E0%B6%9A_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%80%E0%B7%92%E0%B7%82%E0%B7%8A%E0%B6%A7%E0%B6%BA&amp;returnto=%E0%B6%9A%E0%B6%9A%E0%B7%8A%E0%B7%82%E0%B7%93%E0%B6%BA+%E0%B7%80%E0%B7%9A%E0%B6%9C%E0%B6%BA" title="අඩවියට පිවිසීමට ඔබව දිරිගැන්වේ. එහෙත් පිවිසීම අනිවාර්ය නොවේ. [o]" accesskey="o" class=""><span>පිවිසෙන්න</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="More options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="පුද්ගලික මෙවලම්" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">පුද්ගලික මෙවලම්</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_si.wikipedia.org&amp;uselang=si"><span>පරිත්‍යාග</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%9C%E0%B7%92%E0%B6%AB%E0%B7%94%E0%B6%B8_%E0%B6%AD%E0%B7%90%E0%B6%B1%E0%B7%93%E0%B6%B8%E0%B6%A7&amp;returnto=%E0%B6%9A%E0%B6%9A%E0%B7%8A%E0%B7%82%E0%B7%93%E0%B6%BA+%E0%B7%80%E0%B7%9A%E0%B6%9C%E0%B6%BA" title="ඔබ ගිණුමක් තනා පිවිසෙන්නේ නම් මැනවි; කෙසේ වුවත්, එය අනිවාර්ය නොවේ."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>ගිණුමක් තනන්න</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B4%E0%B6%BB%E0%B7%92%E0%B7%81%E0%B7%93%E0%B6%BD%E0%B6%9A_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%80%E0%B7%92%E0%B7%82%E0%B7%8A%E0%B6%A7%E0%B6%BA&amp;returnto=%E0%B6%9A%E0%B6%9A%E0%B7%8A%E0%B7%82%E0%B7%93%E0%B6%BA+%E0%B7%80%E0%B7%9A%E0%B6%9C%E0%B6%BA" title="අඩවියට පිවිසීමට ඔබව දිරිගැන්වේ. එහෙත් පිවිසීම අනිවාර්ය නොවේ. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>පිවිසෙන්න</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/%E0%B6%8B%E0%B6%AF%E0%B7%80%E0%B7%94:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B8%E0%B6%9C%E0%B7%9A_%E0%B6%AF%E0%B7%8F%E0%B6%BA%E0%B6%9A%E0%B6%AD%E0%B7%8A%E0%B7%80%E0%B6%BA" title="A list of edits made from this IP address [y]" accesskey="y"><span>දායකත්වයන්</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B8%E0%B6%9C%E0%B7%9A_%E0%B7%83%E0%B7%8F%E0%B6%9A%E0%B6%A0%E0%B7%8A%E0%B6%A1%E0%B7%8F%E0%B7%80" title="මෙම අන්තර්ජාල ලිපිනයෙන් කර ඇති සංස්කරණයන් පිළිබඳ සාකච්ඡාව [n]" accesskey="n"><span>සාකච්ඡාව</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Beginning</div> </a> </li> <li id="toc-ආශ්‍රිත" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#ආශ්‍රිත"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>ආශ්‍රිත</span> </div> </a> <ul id="toc-ආශ්‍රිත-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-මූලාශ්‍ර" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#මූලාශ්‍ර"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>මූලාශ්‍ර</span> </div> </a> <ul id="toc-මූලාශ්‍ර-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">කක්ෂීය වේගය</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 48 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-48" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">48 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Velocidat_orbital" title="Velocidat orbital – ඇරගොනීස්" lang="an" hreflang="an" data-title="Velocidat orbital" data-language-autonym="Aragonés" data-language-local-name="ඇරගොනීස්" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D8%B1%D8%B9%D8%A9_%D9%85%D8%AF%D8%A7%D8%B1%D9%8A%D8%A9" title="سرعة مدارية – අරාබි" lang="ar" hreflang="ar" data-title="سرعة مدارية" data-language-autonym="العربية" data-language-local-name="අරාබි" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D1%80%D0%B1%D1%96%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F_%D1%81%D0%BA%D0%BE%D1%80%D0%B0%D1%81%D1%86%D1%8C" title="Арбітальная скорасць – බෙලරුසියානු" lang="be" hreflang="be" data-title="Арбітальная скорасць" data-language-autonym="Беларуская" data-language-local-name="බෙලරුසියානු" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9E%D1%80%D0%B1%D0%B8%D1%82%D0%B0%D0%BB%D0%BD%D0%B0_%D1%81%D0%BA%D0%BE%D1%80%D0%BE%D1%81%D1%82" title="Орбитална скорост – බල්ගේරියානු" lang="bg" hreflang="bg" data-title="Орбитална скорост" data-language-autonym="Български" data-language-local-name="බල්ගේරියානු" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Velocitat_orbital" title="Velocitat orbital – කැටලන්" lang="ca" hreflang="ca" data-title="Velocitat orbital" data-language-autonym="Català" data-language-local-name="කැටලන්" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Kruhov%C3%A1_rychlost" title="Kruhová rychlost – චෙක්" lang="cs" hreflang="cs" data-title="Kruhová rychlost" data-language-autonym="Čeština" data-language-local-name="චෙක්" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Bahngeschwindigkeit_(Astronomie)" title="Bahngeschwindigkeit (Astronomie) – ජර්මන්" lang="de" hreflang="de" data-title="Bahngeschwindigkeit (Astronomie)" data-language-autonym="Deutsch" data-language-local-name="ජර්මන්" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A4%CF%81%CE%BF%CF%87%CE%B9%CE%B1%CE%BA%CE%AE_%CF%84%CE%B1%CF%87%CF%8D%CF%84%CE%B7%CF%84%CE%B1" title="Τροχιακή ταχύτητα – ග්‍රීක" lang="el" hreflang="el" data-title="Τροχιακή ταχύτητα" data-language-autonym="Ελληνικά" data-language-local-name="ග්‍රීක" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Orbital_speed" title="Orbital speed – ඉංග්‍රීසි" lang="en" hreflang="en" data-title="Orbital speed" data-language-autonym="English" data-language-local-name="ඉංග්‍රීසි" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Orbita_rapido" title="Orbita rapido – එස්පැරන්ටෝ" lang="eo" hreflang="eo" data-title="Orbita rapido" data-language-autonym="Esperanto" data-language-local-name="එස්පැරන්ටෝ" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Velocidad_orbital" title="Velocidad orbital – ස්පාඤ්ඤ" lang="es" hreflang="es" data-title="Velocidad orbital" data-language-autonym="Español" data-language-local-name="ස්පාඤ්ඤ" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Orbitaalkiirus" title="Orbitaalkiirus – එස්තෝනියානු" lang="et" hreflang="et" data-title="Orbitaalkiirus" data-language-autonym="Eesti" data-language-local-name="එස්තෝනියානු" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%D8%B1%D8%B9%D8%AA_%D9%85%D8%AF%D8%A7%D8%B1%DB%8C" title="سرعت مداری – පර්සියානු" lang="fa" hreflang="fa" data-title="سرعت مداری" data-language-autonym="فارسی" data-language-local-name="පර්සියානු" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Ratanopeus" title="Ratanopeus – ෆින්ලන්ත" lang="fi" hreflang="fi" data-title="Ratanopeus" data-language-autonym="Suomi" data-language-local-name="ෆින්ලන්ත" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Vitesse_orbitale" title="Vitesse orbitale – ප්‍රංශ" lang="fr" hreflang="fr" data-title="Vitesse orbitale" data-language-autonym="Français" data-language-local-name="ප්‍රංශ" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AA%E0%A4%B0%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A4%A3_%E0%A4%97%E0%A4%A4%E0%A4%BF" title="परिक्रमण गति – හින්දි" lang="hi" hreflang="hi" data-title="परिक्रमण गति" data-language-autonym="हिन्दी" data-language-local-name="හින්දි" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Orbitalna_brzina" title="Orbitalna brzina – කෝඒෂියානු" lang="hr" hreflang="hr" data-title="Orbitalna brzina" data-language-autonym="Hrvatski" data-language-local-name="කෝඒෂියානු" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%88%D6%82%D5%B2%D5%A5%D5%AE%D6%80%D5%A1%D5%B5%D5%AB%D5%B6_%D5%A1%D6%80%D5%A1%D5%A3%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Ուղեծրային արագություն – ආර්මේනියානු" lang="hy" hreflang="hy" data-title="Ուղեծրային արագություն" data-language-autonym="Հայերեն" data-language-local-name="ආර්මේනියානු" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Kecepatan_orbit" title="Kecepatan orbit – ඉන්දුනීසියානු" lang="id" hreflang="id" data-title="Kecepatan orbit" data-language-autonym="Bahasa Indonesia" data-language-local-name="ඉන්දුනීසියානු" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Velocit%C3%A0_orbitale" title="Velocità orbitale – ඉතාලි" lang="it" hreflang="it" data-title="Velocità orbitale" data-language-autonym="Italiano" data-language-local-name="ඉතාලි" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%BB%8C%E9%81%93%E9%80%9F%E5%BA%A6" title="軌道速度 – ජපන්" lang="ja" hreflang="ja" data-title="軌道速度" data-language-autonym="日本語" data-language-local-name="ජපන්" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9D%E1%83%A0%E1%83%91%E1%83%98%E1%83%A2%E1%83%90%E1%83%9A%E1%83%A3%E1%83%A0%E1%83%98_%E1%83%A1%E1%83%98%E1%83%A9%E1%83%A5%E1%83%90%E1%83%A0%E1%83%94" title="ორბიტალური სიჩქარე – ජෝර්ජියානු" lang="ka" hreflang="ka" data-title="ორბიტალური სიჩქარე" data-language-autonym="ქართული" data-language-local-name="ජෝර්ජියානු" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B3%B5%EC%A0%84_%EC%86%8D%EB%8F%84" title="공전 속도 – කොරියානු" lang="ko" hreflang="ko" data-title="공전 속도" data-language-autonym="한국어" data-language-local-name="කොරියානු" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Bunnvitess_(Astronomie)" title="Bunnvitess (Astronomie) – ලක්සැම්බර්ග්" lang="lb" hreflang="lb" data-title="Bunnvitess (Astronomie)" data-language-autonym="Lëtzebuergesch" data-language-local-name="ලක්සැම්බර්ග්" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9E%D1%80%D0%B1%D0%B8%D1%82%D0%B0%D0%BB%D0%BD%D0%B0_%D0%B1%D1%80%D0%B7%D0%B8%D0%BD%D0%B0" title="Орбитална брзина – මැසිඩෝනියානු" lang="mk" hreflang="mk" data-title="Орбитална брзина" data-language-autonym="Македонски" data-language-local-name="මැසිඩෝනියානු" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%95%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A5%80%E0%A4%AF_%E0%A4%B5%E0%A5%87%E0%A4%97" title="कक्षीय वेग – මරාති" lang="mr" hreflang="mr" data-title="कक्षीय वेग" data-language-autonym="मराठी" data-language-local-name="මරාති" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Kelajuan_orbit" title="Kelajuan orbit – මැලේ" lang="ms" hreflang="ms" data-title="Kelajuan orbit" data-language-autonym="Bahasa Melayu" data-language-local-name="මැලේ" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Omloopsnelheid_(astronomie)" title="Omloopsnelheid (astronomie) – ලන්දේසි" lang="nl" hreflang="nl" data-title="Omloopsnelheid (astronomie)" data-language-autonym="Nederlands" data-language-local-name="ලන්දේසි" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Banefart" title="Banefart – නෝර්වීජියානු නයිනෝර්ස්ක්" lang="nn" hreflang="nn" data-title="Banefart" data-language-autonym="Norsk nynorsk" data-language-local-name="නෝර්වීජියානු නයිනෝර්ස්ක්" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Oml%C3%B8pshastighet" title="Omløpshastighet – නෝර්වීජියානු බොක්මල්" lang="nb" hreflang="nb" data-title="Omløpshastighet" data-language-autonym="Norsk bokmål" data-language-local-name="නෝර්වීජියානු බොක්මල්" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Velocitat_orbitala" title="Velocitat orbitala – ඔසිටාන්" lang="oc" hreflang="oc" data-title="Velocitat orbitala" data-language-autonym="Occitan" data-language-local-name="ඔසිටාන්" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Pr%C4%99dko%C5%9B%C4%87_orbitalna" title="Prędkość orbitalna – පෝලන්ත" lang="pl" hreflang="pl" data-title="Prędkość orbitalna" data-language-autonym="Polski" data-language-local-name="පෝලන්ත" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Velocidade_orbital" title="Velocidade orbital – පෘතුගීසි" lang="pt" hreflang="pt" data-title="Velocidade orbital" data-language-autonym="Português" data-language-local-name="පෘතුගීසි" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Vitez%C4%83_orbital%C4%83" title="Viteză orbitală – රොමේනියානු" lang="ro" hreflang="ro" data-title="Viteză orbitală" data-language-autonym="Română" data-language-local-name="රොමේනියානු" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9E%D1%80%D0%B1%D0%B8%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F_%D1%81%D0%BA%D0%BE%D1%80%D0%BE%D1%81%D1%82%D1%8C" title="Орбитальная скорость – රුසියානු" lang="ru" hreflang="ru" data-title="Орбитальная скорость" data-language-autonym="Русский" data-language-local-name="රුසියානු" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Orbitalna_brzina" title="Orbitalna brzina – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Orbitalna brzina" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Orbital_speed" title="Orbital speed – Simple English" lang="en-simple" hreflang="en-simple" data-title="Orbital speed" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Kruhov%C3%A1_r%C3%BDchlos%C5%A5" title="Kruhová rýchlosť – ස්ලෝවැක්" lang="sk" hreflang="sk" data-title="Kruhová rýchlosť" data-language-autonym="Slovenčina" data-language-local-name="ස්ලෝවැක්" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Tirna_hitrost" title="Tirna hitrost – ස්ලෝවේනියානු" lang="sl" hreflang="sl" data-title="Tirna hitrost" data-language-autonym="Slovenščina" data-language-local-name="ස්ලෝවේනියානු" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9E%D1%80%D0%B1%D0%B8%D1%82%D0%B0%D0%BB%D0%BD%D0%B0_%D0%B1%D1%80%D0%B7%D0%B8%D0%BD%D0%B0" title="Орбитална брзина – සර්බියානු" lang="sr" hreflang="sr" data-title="Орбитална брзина" data-language-autonym="Српски / srpski" data-language-local-name="සර්බියානු" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Omloppshastighet" title="Omloppshastighet – ස්වීඩන්" lang="sv" hreflang="sv" data-title="Omloppshastighet" data-language-autonym="Svenska" data-language-local-name="ස්වීඩන්" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%9A%E0%AF%81%E0%AE%B1%E0%AF%8D%E0%AE%B1%E0%AF%81%E0%AE%AA%E0%AF%8D%E0%AE%AA%E0%AE%BE%E0%AE%A4%E0%AF%88_%E0%AE%B5%E0%AF%87%E0%AE%95%E0%AE%AE%E0%AF%8D" title="சுற்றுப்பாதை வேகம் – දෙමළ" lang="ta" hreflang="ta" data-title="சுற்றுப்பாதை வேகம்" data-language-autonym="தமிழ்" data-language-local-name="දෙමළ" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%95%E0%B0%95%E0%B1%8D%E0%B0%B7%E0%B1%8D%E0%B0%AF%E0%B0%BE%E0%B0%B5%E0%B1%87%E0%B0%97%E0%B0%82" title="కక్ష్యావేగం – තෙළිඟු" lang="te" hreflang="te" data-title="కక్ష్యావేగం" data-language-autonym="తెలుగు" data-language-local-name="තෙළිඟු" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AD%E0%B8%B1%E0%B8%95%E0%B8%A3%E0%B8%B2%E0%B9%80%E0%B8%A3%E0%B9%87%E0%B8%A7%E0%B9%83%E0%B8%99%E0%B8%A7%E0%B8%87%E0%B9%82%E0%B8%84%E0%B8%88%E0%B8%A3" title="อัตราเร็วในวงโคจร – තායි" lang="th" hreflang="th" data-title="อัตราเร็วในวงโคจร" data-language-autonym="ไทย" data-language-local-name="තායි" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Y%C3%B6r%C3%BCnge_h%C4%B1z%C4%B1" title="Yörünge hızı – තුර්කි" lang="tr" hreflang="tr" data-title="Yörünge hızı" data-language-autonym="Türkçe" data-language-local-name="තුර්කි" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9E%D1%80%D0%B1%D1%96%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0_%D1%88%D0%B2%D0%B8%D0%B4%D0%BA%D1%96%D1%81%D1%82%D1%8C" title="Орбітальна швидкість – යුක්රේනියානු" 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screen{html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media print{body.ns-0 .mw-parser-output .sidebar{display:none!important}}</style><table class="sidebar sidebar-collapse nomobile"><tbody><tr><td class="sidebar-pretitle">මෙම ලිපිය</td></tr><tr><th class="sidebar-title-with-pretitle">Astrodynamics</th></tr><tr><td class="sidebar-pretitle">පිළිබඳ ලිපි මාලාවක කොටසකි</td></tr><tr><td class="sidebar-image" style="padding-bottom:0.85em;"><span typeof="mw:File"><a href="/wiki/%E0%B6%9C%E0%B7%9C%E0%B6%B1%E0%B7%94%E0%B7%80:Angular_Parameters_of_Elliptical_Orbit.png" class="mw-file-description" title="Angular parameters of an elliptical orbit"><img alt="Angular parameters of an elliptical orbit" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Angular_Parameters_of_Elliptical_Orbit.png/180px-Angular_Parameters_of_Elliptical_Orbit.png" decoding="async" width="180" height="180" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Angular_Parameters_of_Elliptical_Orbit.png/270px-Angular_Parameters_of_Elliptical_Orbit.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Angular_Parameters_of_Elliptical_Orbit.png/360px-Angular_Parameters_of_Elliptical_Orbit.png 2x" data-file-width="1200" data-file-height="1200" /></a></span></td></tr><tr><th class="sidebar-heading" style="padding-bottom:0.55em;"> <div style="display:inline-block; line-height:1.2em; padding:0.1em 0;"><a href="/w/index.php?title=Orbital_mechanics&amp;action=edit&amp;redlink=1" class="new" title="Orbital mechanics (පිටුව නොපවතියි)"><span style="font-size:110%;">Orbital mechanics</span></a></div></th></tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title"><a href="/w/index.php?title=Orbital_elements&amp;action=edit&amp;redlink=1" class="new" title="Orbital elements (පිටුව නොපවතියි)">Orbital elements</a></div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"> <ul><li><a href="/w/index.php?title=Apsis&amp;action=edit&amp;redlink=1" class="new" title="Apsis (පිටුව නොපවතියි)">Apsis</a></li> <li><a href="/w/index.php?title=Argument_of_periapsis&amp;action=edit&amp;redlink=1" class="new" title="Argument of periapsis (පිටුව නොපවතියි)">Argument of periapsis</a></li> <li><a href="/wiki/Orbital_eccentricity" class="mw-redirect" title="Orbital eccentricity">Eccentricity</a></li> <li><a href="/w/index.php?title=Orbital_inclination&amp;action=edit&amp;redlink=1" class="new" title="Orbital inclination (පිටුව නොපවතියි)">Inclination</a></li> <li><a href="/w/index.php?title=Mean_anomaly&amp;action=edit&amp;redlink=1" class="new" title="Mean anomaly (පිටුව නොපවතියි)">Mean anomaly</a></li> <li><a href="/w/index.php?title=Orbital_node&amp;action=edit&amp;redlink=1" class="new" title="Orbital node (පිටුව නොපවතියි)">Orbital nodes</a></li> <li><a href="/w/index.php?title=Semi-major_and_semi-minor_axes&amp;action=edit&amp;redlink=1" class="new" title="Semi-major and semi-minor axes (පිටුව නොපවතියි)">Semi-major axis</a></li> <li><a href="/w/index.php?title=True_anomaly&amp;action=edit&amp;redlink=1" class="new" title="True anomaly (පිටුව නොපවතියි)">True anomaly</a></li></ul></div></div></td> </tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title">Types of <a href="/w/index.php?title=Two-body_problem&amp;action=edit&amp;redlink=1" class="new" title="Two-body problem (පිටුව නොපවතියි)">two-body orbits</a> by <br />eccentricity</div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"> <ul><li><a href="/w/index.php?title=Circular_orbit&amp;action=edit&amp;redlink=1" class="new" title="Circular orbit (පිටුව නොපවතියි)">Circular orbit</a></li> <li><a href="/w/index.php?title=Elliptic_orbit&amp;action=edit&amp;redlink=1" class="new" title="Elliptic orbit (පිටුව නොපවතියි)">Elliptic orbit</a></li></ul> <div style="display:inline-block; line-height:1.2em; padding:0.1em 0;"><a href="/w/index.php?title=Transfer_orbit&amp;action=edit&amp;redlink=1" class="new" title="Transfer orbit (පිටුව නොපවතියි)">Transfer orbit</a> <style data-mw-deduplicate="TemplateStyles:r573293">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output 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li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><div class="hlist" style="font-size:90%"><ul><li>(<a href="/w/index.php?title=Hohmann_transfer_orbit&amp;action=edit&amp;redlink=1" class="new" title="Hohmann transfer orbit (පිටුව නොපවතියි)">Hohmann transfer orbit</a></li><li><a href="/w/index.php?title=Bi-elliptic_transfer&amp;action=edit&amp;redlink=1" class="new" title="Bi-elliptic transfer (පිටුව නොපවතියි)">Bi-elliptic transfer orbit</a>)</li></ul></div></div> <ul><li><a href="/w/index.php?title=Parabolic_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Parabolic trajectory (පිටුව නොපවතියි)">Parabolic orbit</a></li> <li><a href="/w/index.php?title=Hyperbolic_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Hyperbolic trajectory (පිටුව නොපවතියි)">Hyperbolic orbit</a></li> <li><a href="/w/index.php?title=Radial_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Radial trajectory (පිටුව නොපවතියි)">Radial orbit</a></li> <li><a href="/w/index.php?title=Orbital_decay&amp;action=edit&amp;redlink=1" class="new" title="Orbital decay (පිටුව නොපවතියි)">Decaying orbit</a></li></ul></div></div></td> </tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title">Equations</div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"> <ul><li><a href="/w/index.php?title=Dynamical_friction&amp;action=edit&amp;redlink=1" class="new" title="Dynamical friction (පිටුව නොපවතියි)">Dynamical friction</a></li> <li><a href="/wiki/%E0%B7%80%E0%B7%92%E0%B6%BA%E0%B7%9D%E0%B6%9C_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%80%E0%B7%9A%E0%B6%9C%E0%B6%BA" title="වියෝග ප්‍රවේගය">වියෝග ප්‍රවේගය</a></li> <li><a href="/w/index.php?title=Kepler%27s_equation&amp;action=edit&amp;redlink=1" class="new" title="Kepler&#39;s equation (පිටුව නොපවතියි)">Kepler's equation</a></li> <li><a href="/w/index.php?title=Kepler%27s_laws_of_planetary_motion&amp;action=edit&amp;redlink=1" class="new" title="Kepler&#39;s laws of planetary motion (පිටුව නොපවතියි)">Kepler's laws of planetary motion</a></li> <li><a href="/w/index.php?title=Orbital_period&amp;action=edit&amp;redlink=1" class="new" title="Orbital period (පිටුව නොපවතියි)">Orbital period</a></li> <li><a class="mw-selflink selflink">කක්ෂීය වේගය</a></li> <li><a href="/w/index.php?title=Surface_gravity&amp;action=edit&amp;redlink=1" class="new" title="Surface gravity (පිටුව නොපවතියි)">Surface gravity</a></li> <li><a href="/w/index.php?title=Specific_orbital_energy&amp;action=edit&amp;redlink=1" class="new" title="Specific orbital energy (පිටුව නොපවතියි)">Specific orbital energy</a></li> <li><a href="/w/index.php?title=Vis-viva_equation&amp;action=edit&amp;redlink=1" class="new" title="Vis-viva equation (පිටුව නොපවතියි)">Vis-viva equation</a></li></ul></div></div></td> </tr><tr><th class="sidebar-heading" style="padding-bottom:0.55em;"> <div style="display:inline-block; line-height:1.2em; padding:0.1em 0;"><a href="/w/index.php?title=Celestial_mechanics&amp;action=edit&amp;redlink=1" class="new" title="Celestial mechanics (පිටුව නොපවතියි)"><span style="font-size:110%;">Celestial mechanics</span></a></div></th></tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title">Gravitational influences</div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"> <ul><li><a href="/w/index.php?title=Barycenter&amp;action=edit&amp;redlink=1" class="new" title="Barycenter (පිටුව නොපවතියි)">Barycenter</a></li> <li><a href="/w/index.php?title=Hill_sphere&amp;action=edit&amp;redlink=1" class="new" title="Hill sphere (පිටුව නොපවතියි)">Hill sphere</a></li> <li><a href="/w/index.php?title=Perturbation_(astronomy)&amp;action=edit&amp;redlink=1" class="new" title="Perturbation (astronomy) (පිටුව නොපවතියි)">Perturbations</a></li> <li><a href="/w/index.php?title=Sphere_of_influence_(astrodynamics)&amp;action=edit&amp;redlink=1" class="new" title="Sphere of influence (astrodynamics) (පිටුව නොපවතියි)">Sphere of influence</a></li></ul></div></div></td> </tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title"><a href="/w/index.php?title=N-body_problem&amp;action=edit&amp;redlink=1" class="new" title="N-body problem (පිටුව නොපවතියි)">N-body orbits</a></div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"><div style="display:inline-block; line-height:1.2em; padding:0.1em 0;"><a href="/w/index.php?title=Lagrange_point&amp;action=edit&amp;redlink=1" class="new" title="Lagrange point (පිටුව නොපවතියි)">Lagrangian points</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r573293"><div class="hlist" style="font-size:90%"><ul><li>(<a href="/w/index.php?title=Halo_orbit&amp;action=edit&amp;redlink=1" class="new" title="Halo orbit (පිටුව නොපවතියි)">Halo orbits</a>)</li></ul></div></div> <ul><li><a href="/w/index.php?title=Lissajous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Lissajous orbit (පිටුව නොපවතියි)">Lissajous orbits</a></li> <li><a href="/w/index.php?title=Lyapunov_stability&amp;action=edit&amp;redlink=1" class="new" title="Lyapunov stability (පිටුව නොපවතියි)">Lyapunov orbits</a></li></ul></div></div></td> </tr><tr><th class="sidebar-heading" style="padding-bottom:0.55em;"> <div style="display:inline-block; line-height:1.2em; padding:0.1em 0;"><a href="/wiki/Aerospace_engineering" class="mw-redirect" title="Aerospace engineering"><span style="font-size:110%;">Engineering and efficiency</span></a></div></th></tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title">Preflight engineering</div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"> <ul><li><a href="/w/index.php?title=Mass_ratio&amp;action=edit&amp;redlink=1" class="new" title="Mass ratio (පිටුව නොපවතියි)">Mass ratio</a></li> <li><a href="/w/index.php?title=Payload_fraction&amp;action=edit&amp;redlink=1" class="new" title="Payload fraction (පිටුව නොපවතියි)">Payload fraction</a></li> <li><a href="/w/index.php?title=Propellant_mass_fraction&amp;action=edit&amp;redlink=1" class="new" title="Propellant mass fraction (පිටුව නොපවතියි)">Propellant mass fraction</a></li> <li><a href="/w/index.php?title=Tsiolkovsky_rocket_equation&amp;action=edit&amp;redlink=1" class="new" title="Tsiolkovsky rocket equation (පිටුව නොපවතියි)">Tsiolkovsky rocket equation</a></li></ul></div></div></td> </tr><tr><td class="sidebar-content hlist"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title">Efficiency measures</div><div class="sidebar-list-content mw-collapsible-content plainlist" style="padding-top:0;"> <ul><li><a href="/w/index.php?title=Gravity_assist&amp;action=edit&amp;redlink=1" class="new" title="Gravity assist (පිටුව නොපවතියි)">Gravity assist</a></li> <li><a href="/w/index.php?title=Oberth_effect&amp;action=edit&amp;redlink=1" class="new" title="Oberth effect (පිටුව නොපවතියි)">Oberth effect</a></li></ul></div></div></td> </tr><tr><td class="sidebar-navbar"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r573293"><style data-mw-deduplicate="TemplateStyles:r500068">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-නරඹන්න"><a href="/wiki/%E0%B7%83%E0%B7%90%E0%B6%9A%E0%B7%92%E0%B6%BD%E0%B7%8A%E0%B6%BD:Astrodynamics" 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.reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-lissauer2019-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-lissauer2019_1-0">^</a></b></span> <span class="reference-text"> <style data-mw-deduplicate="TemplateStyles:r713704">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style><cite id="CITEREFLissauerde_Pater2019" class="citation book cs1">Lissauer, Jack J.; de Pater, Imke (2019). <i>Fundamental Planetary Sciences: physics, chemistry, and habitability</i>. New York, NY, USA: <a href="/wiki/%E0%B6%9A%E0%B7%9A%E0%B6%B8%E0%B7%8A%E0%B6%B6%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%92%E0%B6%A2%E0%B7%8A_%E0%B6%BA%E0%B7%94%E0%B6%B1%E0%B7%92%E0%B7%80%E0%B6%BB%E0%B7%8A%E0%B7%83%E0%B7%92%E0%B6%A7%E0%B7%92_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%99%E0%B7%83%E0%B7%8A" title="කේම්බ්‍රිජ් යුනිවර්සිටි ප්‍රෙස්">කේම්බ්‍රිජ් යුනිවර්සිටි ප්‍රෙස්</a>. pp.&#160;29–31. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%9C%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B6%B1%E0%B7%8A%E0%B6%AE_%E0%B6%B8%E0%B7%96%E0%B6%BD%E0%B7%8F%E0%B7%81%E0%B7%8A%E2%80%8D%E0%B6%BB/9781108411981" title="විශේෂ:ග්‍රන්ථ මූලාශ්‍ර/9781108411981"><bdi>9781108411981</bdi></a>.</cite><span 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class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em">සාමාන්‍ය</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Box_orbit&amp;action=edit&amp;redlink=1" class="new" title="Box orbit (පිටුව නොපවතියි)">Box</a></li> <li><a href="/w/index.php?title=Parabolic_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Parabolic trajectory (පිටුව නොපවතියි)">Capture</a></li> <li><a href="/w/index.php?title=Circular_orbit&amp;action=edit&amp;redlink=1" class="new" title="Circular orbit (පිටුව නොපවතියි)">Circular</a></li> <li><a href="/w/index.php?title=Elliptic_orbit&amp;action=edit&amp;redlink=1" class="new" title="Elliptic orbit (පිටුව නොපවතියි)">Elliptical</a> / <a href="/w/index.php?title=Highly_elliptical_orbit&amp;action=edit&amp;redlink=1" class="new" title="Highly elliptical orbit (පිටුව නොපවතියි)">Highly elliptical</a></li> <li><a href="/w/index.php?title=Parabolic_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Parabolic trajectory (පිටුව නොපවතියි)">Escape</a></li> <li><a href="/w/index.php?title=Horseshoe_orbit&amp;action=edit&amp;redlink=1" class="new" title="Horseshoe orbit (පිටුව නොපවතියි)">Horseshoe</a></li> <li><a href="/w/index.php?title=Hyperbolic_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Hyperbolic trajectory (පිටුව නොපවතියි)">Hyperbolic trajectory</a></li> <li><a href="/w/index.php?title=Inclined_orbit&amp;action=edit&amp;redlink=1" class="new" title="Inclined orbit (පිටුව නොපවතියි)">Inclined</a> / <a href="/w/index.php?title=Non-inclined_orbit&amp;action=edit&amp;redlink=1" class="new" title="Non-inclined orbit (පිටුව නොපවතියි)">Non-inclined</a></li> <li><a href="/w/index.php?title=Kepler_orbit&amp;action=edit&amp;redlink=1" class="new" title="Kepler orbit (පිටුව නොපවතියි)">Kepler</a></li> <li><a href="/w/index.php?title=Lagrange_point&amp;action=edit&amp;redlink=1" class="new" title="Lagrange point (පිටුව නොපවතියි)">Lagrange point</a></li> <li><a href="/w/index.php?title=Osculating_orbit&amp;action=edit&amp;redlink=1" class="new" title="Osculating orbit (පිටුව නොපවතියි)">Osculating</a></li> <li><a href="/w/index.php?title=Parabolic_trajectory&amp;action=edit&amp;redlink=1" class="new" title="Parabolic trajectory (පිටුව නොපවතියි)">Parabolic trajectory</a></li> <li><a href="/w/index.php?title=Parking_orbit&amp;action=edit&amp;redlink=1" class="new" title="Parking orbit (පිටුව නොපවතියි)">Parking</a></li> <li><a href="/w/index.php?title=Retrograde_and_prograde_motion&amp;action=edit&amp;redlink=1" class="new" title="Retrograde and prograde motion (පිටුව නොපවතියි)">Prograde / Retrograde</a></li> <li><a href="/w/index.php?title=Synchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Synchronous orbit (පිටුව නොපවතියි)">Synchronous</a> <ul><li><a href="/w/index.php?title=Semi-synchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Semi-synchronous orbit (පිටුව නොපවතියි)">semi</a></li> <li><a href="/w/index.php?title=Subsynchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Subsynchronous orbit (පිටුව නොපවතියි)">sub</a></li></ul></li> <li><a href="/w/index.php?title=Hohmann_transfer_orbit&amp;action=edit&amp;redlink=1" class="new" title="Hohmann transfer orbit (පිටුව නොපවතියි)">Transfer orbit</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/w/index.php?title=Geocentric_orbit&amp;action=edit&amp;redlink=1" class="new" title="Geocentric orbit (පිටුව නොපවතියි)">Geocentric</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Geosynchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Geosynchronous orbit (පිටුව නොපවතියි)">Geosynchronous</a> <ul><li><a href="/w/index.php?title=Geostationary_orbit&amp;action=edit&amp;redlink=1" class="new" title="Geostationary orbit (පිටුව නොපවතියි)">Geostationary</a></li> <li><a href="/w/index.php?title=Geostationary_transfer_orbit&amp;action=edit&amp;redlink=1" class="new" title="Geostationary transfer orbit (පිටුව නොපවතියි)">Geostationary transfer</a></li></ul></li> <li><a href="/w/index.php?title=Graveyard_orbit&amp;action=edit&amp;redlink=1" class="new" title="Graveyard orbit (පිටුව නොපවතියි)">Graveyard</a></li> <li><a href="/w/index.php?title=High_Earth_orbit&amp;action=edit&amp;redlink=1" class="new" title="High Earth orbit (පිටුව නොපවතියි)">High Earth</a></li> <li><a href="/w/index.php?title=Low_Earth_orbit&amp;action=edit&amp;redlink=1" class="new" title="Low Earth orbit (පිටුව නොපවතියි)">Low Earth</a></li> <li><a href="/w/index.php?title=Medium_Earth_orbit&amp;action=edit&amp;redlink=1" class="new" title="Medium Earth orbit (පිටුව නොපවතියි)">Medium Earth</a></li> <li><a href="/w/index.php?title=Molniya_orbit&amp;action=edit&amp;redlink=1" class="new" title="Molniya orbit (පිටුව නොපවතියි)">Molniya</a></li> <li><a href="/w/index.php?title=Near-equatorial_orbit&amp;action=edit&amp;redlink=1" class="new" title="Near-equatorial orbit (පිටුව නොපවතියි)">Near-equatorial</a></li> <li><a href="/w/index.php?title=Orbit_of_the_Moon&amp;action=edit&amp;redlink=1" class="new" title="Orbit of the Moon (පිටුව නොපවතියි)">Orbit of the Moon</a></li> <li><a href="/w/index.php?title=Polar_orbit&amp;action=edit&amp;redlink=1" class="new" title="Polar orbit (පිටුව නොපවතියි)">Polar</a></li> <li><a href="/w/index.php?title=Sun-synchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Sun-synchronous orbit (පිටුව නොපවතියි)">Sun-synchronous</a></li> <li><a href="/w/index.php?title=Tundra_orbit&amp;action=edit&amp;redlink=1" class="new" title="Tundra orbit (පිටුව නොපවතියි)">Tundra</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">About<br />other points</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li>Mars <ul><li><a href="/w/index.php?title=Areocentric_orbit&amp;action=edit&amp;redlink=1" class="new" title="Areocentric orbit (පිටුව නොපවතියි)">Areocentric</a></li> <li><a href="/w/index.php?title=Areosynchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Areosynchronous orbit (පිටුව නොපවතියි)">Areosynchronous</a></li> <li><a href="/w/index.php?title=Areostationary_orbit&amp;action=edit&amp;redlink=1" class="new" title="Areostationary orbit (පිටුව නොපවතියි)">Areostationary</a></li></ul></li> <li>Lagrange points <ul><li><a href="/w/index.php?title=Distant_retrograde_orbit&amp;action=edit&amp;redlink=1" class="new" title="Distant retrograde orbit (පිටුව නොපවතියි)">Distant retrograde</a></li> <li><a href="/w/index.php?title=Halo_orbit&amp;action=edit&amp;redlink=1" class="new" title="Halo orbit (පිටුව නොපවතියි)">Halo</a></li> <li><a href="/w/index.php?title=Lissajous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Lissajous orbit (පිටුව නොපවතියි)">Lissajous</a></li></ul></li> <li><a href="/w/index.php?title=Lunar_orbit&amp;action=edit&amp;redlink=1" class="new" title="Lunar orbit (පිටුව නොපවතියි)">Lunar</a></li> <li>Sun <ul><li><a href="/w/index.php?title=Heliocentric_orbit&amp;action=edit&amp;redlink=1" class="new" title="Heliocentric orbit (පිටුව නොපවතියි)">Heliocentric</a> <ul><li><a href="/w/index.php?title=Earth%27s_orbit&amp;action=edit&amp;redlink=1" class="new" title="Earth&#39;s orbit (පිටුව නොපවතියි)">Earth's orbit</a></li></ul></li> <li><a href="/w/index.php?title=Mars_cycler&amp;action=edit&amp;redlink=1" class="new" title="Mars cycler (පිටුව නොපවතියි)">Mars cycler</a></li> <li><a href="/w/index.php?title=Sun-synchronous_orbit&amp;action=edit&amp;redlink=1" class="new" title="Sun-synchronous orbit (පිටුව නොපවතියි)">Heliosynchronous</a></li></ul></li> <li>Other <ul><li><a href="/w/index.php?title=Lunar_cycler&amp;action=edit&amp;redlink=1" class="new" title="Lunar cycler (පිටුව නොපවතියි)">Lunar cycler</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Orbital_elements&amp;action=edit&amp;redlink=1" class="new" title="Orbital elements (පිටුව නොපවතියි)">Parameters</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em"><div class="hlist"><ul><li>Shape</li><li>Size</li></ul></div></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><span class="texhtml mvar" style="font-style:italic;">e</span>&#160;&#160;<a href="/wiki/Orbital_eccentricity" class="mw-redirect" title="Orbital eccentricity">Eccentricity</a></li> <li><span class="texhtml mvar" style="font-style:italic;">a</span>&#160;&#160;<a href="/w/index.php?title=Semi-major_and_semi-minor_axes&amp;action=edit&amp;redlink=1" class="new" title="Semi-major and semi-minor axes (පිටුව නොපවතියි)">Semi-major axis</a></li> <li><span class="texhtml mvar" style="font-style:italic;">b</span>&#160;&#160;<a href="/w/index.php?title=Semi-major_and_semi-minor_axes&amp;action=edit&amp;redlink=1" class="new" title="Semi-major and semi-minor axes (පිටුව නොපවතියි)">Semi-minor axis</a></li> <li><span class="texhtml mvar" style="font-style:italic;">Q</span>,&#160;<span class="texhtml mvar" style="font-style:italic;">q</span>&#160;&#160;<a href="/w/index.php?title=Apsis&amp;action=edit&amp;redlink=1" class="new" title="Apsis (පිටුව නොපවතියි)">Apsides</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">Orientation</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><span class="texhtml mvar" style="font-style:italic;">i</span>&#160;&#160;<a href="/w/index.php?title=Orbital_inclination&amp;action=edit&amp;redlink=1" class="new" title="Orbital inclination (පිටුව නොපවතියි)">Inclination</a></li> <li><span class="texhtml mvar" style="font-style:italic;">Ω</span>&#160;&#160;<a href="/w/index.php?title=Longitude_of_the_ascending_node&amp;action=edit&amp;redlink=1" class="new" title="Longitude of the ascending node (පිටුව නොපවතියි)">Longitude of the ascending node</a></li> <li><span class="texhtml mvar" style="font-style:italic;">ω</span>&#160;&#160;<a href="/w/index.php?title=Argument_of_periapsis&amp;action=edit&amp;redlink=1" class="new" title="Argument of periapsis (පිටුව නොපවතියි)">Argument of periapsis</a></li> <li><span class="texhtml mvar" style="font-style:italic;">ϖ</span>&#160;&#160;<a href="/w/index.php?title=Longitude_of_the_periapsis&amp;action=edit&amp;redlink=1" class="new" title="Longitude of the periapsis (පිටුව නොපවතියි)">Longitude of the periapsis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">Position</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><span class="texhtml mvar" style="font-style:italic;">M</span>&#160;&#160;<a href="/w/index.php?title=Mean_anomaly&amp;action=edit&amp;redlink=1" class="new" title="Mean anomaly (පිටුව නොපවතියි)">Mean anomaly</a></li> <li><span class="texhtml mvar" style="font-style:italic;">ν</span>, <span class="texhtml mvar" style="font-style:italic;">θ</span>, <span class="texhtml mvar" style="font-style:italic;">f</span>&#160;&#160;<a href="/w/index.php?title=True_anomaly&amp;action=edit&amp;redlink=1" class="new" title="True anomaly (පිටුව නොපවතියි)">True anomaly</a></li> <li><span class="texhtml mvar" style="font-style:italic;">E</span>&#160;&#160;<a href="/w/index.php?title=Eccentric_anomaly&amp;action=edit&amp;redlink=1" class="new" title="Eccentric anomaly (පිටුව නොපවතියි)">Eccentric anomaly</a></li> <li><span class="texhtml mvar" style="font-style:italic;">L</span>&#160;&#160;<a href="/w/index.php?title=Mean_longitude&amp;action=edit&amp;redlink=1" class="new" title="Mean longitude (පිටුව නොපවතියි)">Mean longitude</a></li> <li><span class="texhtml mvar" style="font-style:italic;">l</span>&#160;&#160;<a href="/w/index.php?title=True_longitude&amp;action=edit&amp;redlink=1" class="new" title="True longitude (පිටුව නොපවතියි)">True longitude</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">Variation</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><span class="texhtml mvar" style="font-style:italic;">T</span>&#160;&#160;<a href="/w/index.php?title=Orbital_period&amp;action=edit&amp;redlink=1" class="new" title="Orbital period (පිටුව නොපවතියි)">Orbital period</a></li> <li><span class="texhtml mvar" style="font-style:italic;">n</span>&#160;&#160;<a href="/w/index.php?title=Mean_motion&amp;action=edit&amp;redlink=1" class="new" title="Mean motion (පිටුව නොපවතියි)">Mean motion</a></li> <li><span class="texhtml mvar" style="font-style:italic;">v</span>&#160;&#160;<a href="/wiki/Orbital_speed" class="mw-redirect" title="Orbital speed">Orbital speed</a></li> <li><span class="texhtml" style="white-space: nowrap;"><i>t</i><sub>0</sub></span>&#160;&#160;<a href="/w/index.php?title=Epoch_(astronomy)&amp;action=edit&amp;redlink=1" class="new" title="Epoch (astronomy) (පිටුව නොපවතියි)">Epoch</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Orbital_maneuver&amp;action=edit&amp;redlink=1" class="new" title="Orbital maneuver (පිටුව නොපවතියි)">Maneuvers</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Bi-elliptic_transfer&amp;action=edit&amp;redlink=1" class="new" title="Bi-elliptic transfer (පිටුව නොපවතියි)">Bi-elliptic transfer</a></li> <li><a href="/w/index.php?title=Collision_avoidance_(spacecraft)&amp;action=edit&amp;redlink=1" class="new" title="Collision avoidance (spacecraft) (පිටුව නොපවතියි)">Collision avoidance (spacecraft)</a></li> <li><a href="/w/index.php?title=Delta-v&amp;action=edit&amp;redlink=1" class="new" title="Delta-v (පිටුව නොපවතියි)">Delta-v</a></li> <li><a href="/w/index.php?title=Delta-v_budget&amp;action=edit&amp;redlink=1" class="new" title="Delta-v budget (පිටුව නොපවතියි)">Delta-v budget</a></li> <li><a href="/w/index.php?title=Gravity_assist&amp;action=edit&amp;redlink=1" class="new" title="Gravity assist (පිටුව නොපවතියි)">Gravity assist</a></li> <li><a href="/w/index.php?title=Gravity_turn&amp;action=edit&amp;redlink=1" class="new" title="Gravity turn (පිටුව නොපවතියි)">Gravity turn</a></li> <li><a href="/w/index.php?title=Hohmann_transfer_orbit&amp;action=edit&amp;redlink=1" class="new" title="Hohmann transfer orbit (පිටුව නොපවතියි)">Hohmann transfer</a></li> <li><a href="/w/index.php?title=Orbital_inclination_change&amp;action=edit&amp;redlink=1" class="new" title="Orbital inclination change (පිටුව නොපවතියි)">Inclination change</a></li> <li><a href="/w/index.php?title=Low-energy_transfer&amp;action=edit&amp;redlink=1" class="new" title="Low-energy transfer (පිටුව නොපවතියි)">Low-energy transfer</a></li> <li><a href="/w/index.php?title=Oberth_effect&amp;action=edit&amp;redlink=1" class="new" title="Oberth effect (පිටුව නොපවතියි)">Oberth effect</a></li> <li><a href="/w/index.php?title=Orbit_phasing&amp;action=edit&amp;redlink=1" class="new" title="Orbit phasing (පිටුව නොපවතියි)">Phasing</a></li> <li><a href="/w/index.php?title=Tsiolkovsky_rocket_equation&amp;action=edit&amp;redlink=1" class="new" title="Tsiolkovsky rocket equation (පිටුව නොපවතියි)">Rocket equation</a></li> <li><a href="/w/index.php?title=Space_rendezvous&amp;action=edit&amp;redlink=1" class="new" title="Space rendezvous (පිටුව නොපවතියි)">Rendezvous</a></li> <li><a href="/w/index.php?title=Transposition,_docking,_and_extraction&amp;action=edit&amp;redlink=1" class="new" title="Transposition, docking, and extraction (පිටුව නොපවතියි)">Transposition, docking, and extraction</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Orbital_mechanics&amp;action=edit&amp;redlink=1" class="new" title="Orbital mechanics (පිටුව නොපවතියි)">Orbital<br />mechanics</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Astronomical_coordinate_systems&amp;action=edit&amp;redlink=1" class="new" title="Astronomical coordinate systems (පිටුව නොපවතියි)">Astronomical coordinate systems</a></li> <li><a href="/w/index.php?title=Characteristic_energy&amp;action=edit&amp;redlink=1" class="new" title="Characteristic energy (පිටුව නොපවතියි)">Characteristic energy</a></li> <li><a href="/wiki/Escape_velocity" class="mw-redirect" title="Escape velocity">Escape velocity</a></li> <li><a href="/w/index.php?title=Ephemeris&amp;action=edit&amp;redlink=1" class="new" title="Ephemeris (පිටුව නොපවතියි)">Ephemeris</a></li> <li><a href="/w/index.php?title=Equatorial_coordinate_system&amp;action=edit&amp;redlink=1" class="new" title="Equatorial coordinate system (පිටුව නොපවතියි)">Equatorial coordinate system</a></li> <li><a href="/w/index.php?title=Ground_track&amp;action=edit&amp;redlink=1" class="new" title="Ground track (පිටුව නොපවතියි)">Ground track</a></li> <li><a href="/w/index.php?title=Hill_sphere&amp;action=edit&amp;redlink=1" class="new" title="Hill sphere (පිටුව නොපවතියි)">Hill sphere</a></li> <li><a href="/w/index.php?title=Interplanetary_Transport_Network&amp;action=edit&amp;redlink=1" class="new" title="Interplanetary Transport Network (පිටුව නොපවතියි)">Interplanetary Transport Network</a></li> <li><a href="/w/index.php?title=Kepler%27s_laws_of_planetary_motion&amp;action=edit&amp;redlink=1" class="new" title="Kepler&#39;s laws of planetary motion (පිටුව නොපවතියි)">Kepler's laws of planetary motion</a></li> <li><a href="/w/index.php?title=Lagrange_point&amp;action=edit&amp;redlink=1" class="new" title="Lagrange point (පිටුව නොපවතියි)">Lagrangian point</a></li> <li><a href="/w/index.php?title=N-body_problem&amp;action=edit&amp;redlink=1" class="new" title="N-body problem (පිටුව නොපවතියි)"><i>n</i>-body problem</a></li> <li><a href="/w/index.php?title=Orbit_equation&amp;action=edit&amp;redlink=1" 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