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Available in 24 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-24" 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">24 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/(3169)_Ostro" title="(3169) Ostro – German" lang="de" hreflang="de" data-title="(3169) Ostro" data-language-autonym="Deutsch" data-language-local-name="German" 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/3169_%CE%8C%CF%83%CF%84%CF%81%CE%BF" title="3169 Όστρο – Greek" lang="el" hreflang="el" data-title="3169 Όστρο" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/(3169)_Ostro" title="(3169) Ostro – Spanish" lang="es" hreflang="es" data-title="(3169) Ostro" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Esperanto" lang="eo" hreflang="eo" data-title="3169 Ostro" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Basque" lang="eu" hreflang="eu" data-title="3169 Ostro" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%DB%8C%D8%A7%D8%B1%DA%A9_%DB%B3%DB%B1%DB%B6%DB%B9" title="سیارک ۳۱۶۹ – Persian" lang="fa" hreflang="fa" data-title="سیارک ۳۱۶۹" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/(3169)_Ostro" title="(3169) Ostro – French" lang="fr" hreflang="fr" data-title="(3169) Ostro" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/(3169)_%D5%95%D5%BD%D5%BF%D6%80%D5%B8" title="(3169) Օստրո – Armenian" lang="hy" hreflang="hy" data-title="(3169) Օստրո" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Italian" lang="it" hreflang="it" data-title="3169 Ostro" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Latin" lang="la" hreflang="la" data-title="3169 Ostro" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Hungarian" lang="hu" hreflang="hu" data-title="3169 Ostro" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/3169_Ostro_(%D9%83%D9%88%D9%8A%D9%83%D8%A8)" title="3169 Ostro (كويكب) – Egyptian Arabic" lang="arz" hreflang="arz" data-title="3169 Ostro (كويكب)" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ce mw-list-item"><a href="https://ce.wikipedia.org/wiki/(3169)_%D0%BE%D1%81%D1%82%D1%80%D0%BE" title="(3169) остро – Chechen" lang="ce" hreflang="ce" data-title="(3169) остро" data-language-autonym="Нохчийн" data-language-local-name="Chechen" class="interlanguage-link-target"><span>Нохчийн</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/(3169)_Ostro" title="(3169) Ostro – Polish" lang="pl" hreflang="pl" data-title="(3169) Ostro" data-language-autonym="Polski" data-language-local-name="Polish" 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/3169_Ostro" title="3169 Ostro – Portuguese" lang="pt" hreflang="pt" data-title="3169 Ostro" data-language-autonym="Português" data-language-local-name="Portuguese" 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/3169_Ostro" title="3169 Ostro – Romanian" lang="ro" hreflang="ro" data-title="3169 Ostro" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Slovak" lang="sk" hreflang="sk" data-title="3169 Ostro" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Serbian" lang="sr" hreflang="sr" data-title="3169 Ostro" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" 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/3169_Ostro" title="3169 Ostro – Swedish" lang="sv" hreflang="sv" data-title="3169 Ostro" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/(3169)_%D0%BE%D1%81%D1%82%D1%80%D0%BE" title="(3169) остро – Tatar" lang="tt" hreflang="tt" data-title="(3169) остро" data-language-autonym="Татарча / tatarça" data-language-local-name="Tatar" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/3169_%D0%9E%D1%81%D1%82%D1%80%D0%BE" title="3169 Остро – Ukrainian" lang="uk" hreflang="uk" data-title="3169 Остро" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Vietnamese" lang="vi" hreflang="vi" data-title="3169 Ostro" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/3169_Ostro" title="3169 Ostro – Yoruba" lang="yo" hreflang="yo" data-title="3169 Ostro" data-language-autonym="Yorùbá" data-language-local-name="Yoruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%B0%8F%E8%A1%8C%E6%98%9F3169" title="小行星3169 – Chinese" lang="zh" hreflang="zh" data-title="小行星3169" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q514222#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div 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.navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title fn org">3169 Ostro</caption><tbody><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Asteroid_(3169)_Ostro.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/Asteroid_%283169%29_Ostro.gif/290px-Asteroid_%283169%29_Ostro.gif" decoding="async" width="290" height="283" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/Asteroid_%283169%29_Ostro.gif/435px-Asteroid_%283169%29_Ostro.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/46/Asteroid_%283169%29_Ostro.gif/580px-Asteroid_%283169%29_Ostro.gif 2x" data-file-width="615" data-file-height="600" /></a></span><div class="infobox-caption"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0; padding: 5px 0; line-height: 1.4em;"><i>Ostro</i> imaged by the 0.7-m telescope<br />at <a href="/wiki/Heidelberg-K%C3%B6nigstuhl_State_Observatory" title="Heidelberg-Königstuhl State Observatory">Heidelberg Observatory</a></div></div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#D6D6D6">Discovery <sup id="cite_ref-jpldata_1-0" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></th></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/List_of_minor_planet_discoverers" title="List of minor planet discoverers">Discovered by</a></th><td class="infobox-data"><a href="/wiki/E._Bowell" class="mw-redirect" title="E. Bowell">E. Bowell</a></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/List_of_observatory_codes" title="List of observatory codes">Discovery site</a></th><td class="infobox-data"><a href="/wiki/Anderson_Mesa_Station" title="Anderson Mesa Station">Anderson Mesa Stn.</a></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;">Discovery date</th><td class="infobox-data">4 June 1981</td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#D6D6D6">Designations</th></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Minor-planet_designation" title="Minor-planet designation">MPC designation</a></div></th><td class="infobox-data">(3169) Ostro</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Named after</div></th><td class="infobox-data"><a href="/wiki/Steven_J._Ostro" title="Steven J. Ostro">Steven J. Ostro</a><br /><span style="font-size:85%;">(planetary scientist)</span><sup id="cite_ref-springer_2-0" class="reference"><a href="#cite_note-springer-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Provisional_designation_in_astronomy" title="Provisional designation in astronomy">Alternative designations</a></div></th><td class="infobox-data">1981 LA</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Minor_planet#Populations" title="Minor planet">Minor planet category</a></div></th><td class="infobox-data"><a href="/wiki/Main-belt" class="mw-redirect" title="Main-belt">main-belt</a> <b>·</b> <span style="font-size:85%;">(<a href="/wiki/Kirkwood_gap" title="Kirkwood gap">inner</a>)</span> <sup id="cite_ref-jpldata_1-1" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <b>·</b> <a href="/wiki/Hungaria_family" title="Hungaria family">Hungaria</a> <sup id="cite_ref-MPC-Ostro_3-0" class="reference"><a href="#cite_note-MPC-Ostro-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-lcdb_4-0" class="reference"><a href="#cite_note-lcdb-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#D6D6D6"><a href="/wiki/Osculating_orbit" title="Osculating orbit">Orbital characteristics</a> <sup id="cite_ref-jpldata_1-2" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></th></tr><tr><td colspan="2" class="infobox-full-data"><a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">Epoch</a> 4 September 2017 (<a href="/wiki/Julian_day" title="Julian day">JD</a> 2458000.5)</td></tr><tr><td colspan="2" class="infobox-full-data"><a href="/wiki/Uncertainty_parameter" title="Uncertainty parameter">Uncertainty parameter</a> 0</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Observation_arc" title="Observation arc">Observation arc</a></th><td class="infobox-data">63.43 yr (23,166 days)</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Perihelion_and_aphelion" class="mw-redirect" title="Perihelion and aphelion">Aphelion</a></th><td class="infobox-data">2.0184 <a href="/wiki/Astronomical_unit" title="Astronomical unit">AU</a></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Perihelion_and_aphelion" class="mw-redirect" title="Perihelion and aphelion">Perihelion</a></th><td class="infobox-data">1.7652 AU</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Semi-major_and_semi-minor_axes" title="Semi-major and semi-minor axes">Semi-major axis</a></div></th><td class="infobox-data">1.8918 AU</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Orbital_eccentricity" title="Orbital eccentricity">Eccentricity</a></th><td class="infobox-data">0.0669</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Orbital_period" title="Orbital period">Orbital period (sidereal)</a></div></th><td class="infobox-data">2.60 <a href="/wiki/Julian_year_(astronomy)" title="Julian year (astronomy)">yr</a> (950 days)</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Mean_anomaly#Mean_anomaly_at_epoch" title="Mean anomaly">Mean anomaly</a></div></th><td class="infobox-data">120.41<a href="/wiki/Degree_(angle)" title="Degree (angle)">°</a></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Mean_motion" title="Mean motion">Mean motion</a></div></th><td class="infobox-data">0° 22<sup>m</sup> 43.68<sup>s</sup> / day</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Orbital_inclination" title="Orbital inclination">Inclination</a></th><td class="infobox-data">24.906°</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Longitude_of_the_ascending_node" title="Longitude of the ascending node">Longitude of ascending node</a></div></th><td class="infobox-data">96.376°</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Argument_of_periapsis" title="Argument of periapsis">Argument of perihelion</a></div></th><td class="infobox-data">32.622°</td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#D6D6D6"><span class="anchor" id="Infobox_Physical_characteristics"></span><a href="/wiki/Standard_asteroid_physical_characteristics" title="Standard asteroid physical characteristics">Physical characteristics</a></th></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Mean_radius_(astronomy)" title="Mean radius (astronomy)">Dimensions</a></th><td class="infobox-data"><span class="nowrap"><span data-sort-value="7000466200000000000♠"></span>4.662<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.118</span><sup id="cite_ref-Masiero-2011_5-0" class="reference"><a href="#cite_note-Masiero-2011-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><br /><span class="nowrap"><span data-sort-value="7000526999999999999♠"></span>5.27</span> km <span style="font-size:85%;">(derived)</span><sup id="cite_ref-lcdb_4-1" class="reference"><a href="#cite_note-lcdb-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Synodic_rotation_period" class="mw-redirect" title="Synodic rotation period">Synodic rotation period</a></div></th><td class="infobox-data"><span class="nowrap"><span data-sort-value="7000650300000000000♠"></span>6.503<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.003</span><sup id="cite_ref-Warner-2012s_6-0" class="reference"><a href="#cite_note-Warner-2012s-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Geometric_albedo" title="Geometric albedo">Geometric albedo</a></div></th><td class="infobox-data"><span class="nowrap"><span data-sort-value="6999515200000000000♠"></span>0.5152</span> <span style="font-size:85%;">(derived)</span><sup id="cite_ref-lcdb_4-2" class="reference"><a href="#cite_note-lcdb-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><br /><span class="nowrap"><span data-sort-value="6999960000000000000♠"></span>0.960<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.023</span><sup id="cite_ref-Masiero-2011_5-1" class="reference"><a href="#cite_note-Masiero-2011-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Asteroid_spectral_types" title="Asteroid spectral types">Spectral type</a></div></th><td class="infobox-data">TS <span style="font-size:85%;">(<a href="/wiki/Tholen_classification" class="mw-redirect" title="Tholen classification">Tholen</a>)</span><sup id="cite_ref-jpldata_1-3" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br />Xe <span style="font-size:85%;">(<a href="/wiki/SMASS_classification" class="mw-redirect" title="SMASS classification">SMASS</a>)</span><sup id="cite_ref-jpldata_1-4" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/Asteroid_color_indices" class="mw-redirect" title="Asteroid color indices">B–V</a> = 0.771<sup id="cite_ref-jpldata_1-5" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/Asteroid_color_indices" class="mw-redirect" title="Asteroid color indices">U–B</a> = 0.306<sup id="cite_ref-jpldata_1-6" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Absolute_magnitude#Solar_System_bodies_(H)" title="Absolute magnitude">Absolute magnitude <i>(H)</i></a></div></th><td class="infobox-data">12.73<sup id="cite_ref-jpldata_1-7" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-lcdb_4-3" class="reference"><a href="#cite_note-lcdb-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><td colspan="2" class="infobox-below"><style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .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></td></tr></tbody></table> <p><b>3169 Ostro</b>, provisional designation <span class="nowrap">1981 LA</span>, is a <a href="/wiki/Hungaria_family" title="Hungaria family">Hungaria family</a> <a href="/wiki/Asteroid" title="Asteroid">asteroid</a> from the innermost regions of the <a href="/wiki/Asteroid_belt" title="Asteroid belt">asteroid belt</a>, approximately 5 kilometers in diameter. </p><p>The asteroid was discovered on 4 June 1981, by American astronomer <a href="/wiki/Edward_Bowell" class="mw-redirect" title="Edward Bowell">Edward Bowell</a> at Lowell's <a href="/wiki/Anderson_Mesa_Station" title="Anderson Mesa Station">Anderson Mesa Station</a> in Flagstaff, Arizona,<sup id="cite_ref-MPC-Ostro_3-1" class="reference"><a href="#cite_note-MPC-Ostro-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> and named after planetary scientist <a href="/wiki/Steven_J._Ostro" title="Steven J. Ostro">Steven J. Ostro</a> at JPL.<sup id="cite_ref-springer_2-1" class="reference"><a href="#cite_note-springer-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Orbit_and_classification">Orbit and classification</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3169_Ostro&action=edit&section=1" title="Edit section: Orbit and classification"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Ostro</i> is a member of the <a href="/wiki/Hungaria_family" title="Hungaria family">Hungaria family</a>, which form the innermost dense concentration of asteroids in the <a href="/wiki/Solar_System" title="Solar System">Solar System</a>. It orbits the Sun at a distance of 1.8–2.0 <a href="/wiki/Astronomical_unit" title="Astronomical unit">AU</a> once every 2 years and 7 months (950 days). Its orbit has an <a href="/wiki/Orbital_eccentricity" title="Orbital eccentricity">eccentricity</a> of 0.07 and an <a href="/wiki/Orbital_inclination" title="Orbital inclination">inclination</a> of 25<a href="/wiki/Degree_(angle)" title="Degree (angle)">°</a> with respect to the <a href="/wiki/Ecliptic" title="Ecliptic">ecliptic</a>.<sup id="cite_ref-jpldata_1-8" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Physical_characteristics">Physical characteristics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3169_Ostro&action=edit&section=2" title="Edit section: Physical characteristics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the <a href="/wiki/Tholen_classification" class="mw-redirect" title="Tholen classification">Tholen</a> and <a href="/wiki/SMASS_classification" class="mw-redirect" title="SMASS classification">SMASS</a> taxonomy, <i>Ostro</i> is classified as a TS-type and Xe-type asteroid, respectively.<sup id="cite_ref-jpldata_1-9" class="reference"><a href="#cite_note-jpldata-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> It has also been characterized as an <a href="/wiki/E-type_asteroid" title="E-type asteroid">E-type asteroid</a>.<sup id="cite_ref-lcdb_4-4" class="reference"><a href="#cite_note-lcdb-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>According to the survey carried out by NASA's <a href="/wiki/Wide-field_Infrared_Survey_Explorer" title="Wide-field Infrared Survey Explorer">Wide-field Infrared Survey Explorer</a> with its subsequent <a href="/wiki/NEOWISE" class="mw-redirect" title="NEOWISE">NEOWISE</a> mission, <i>Ostro</i> measures 4.662 kilometers in diameter and its surface has an outstandingly high <a href="/wiki/Astronomical_albedo" class="mw-redirect" title="Astronomical albedo">albedo</a> of 0.960.<sup id="cite_ref-Masiero-2011_5-2" class="reference"><a href="#cite_note-Masiero-2011-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The <i>Collaborative Asteroid Lightcurve Link</i> derives an albedo of 0.5152 and a diameter of 5.27 kilometers with an <a href="/wiki/Absolute_magnitude" title="Absolute magnitude">absolute magnitude</a> of 12.73.<sup id="cite_ref-lcdb_4-5" class="reference"><a href="#cite_note-lcdb-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>In May 2012, a rotational <a href="/wiki/Lightcurve" class="mw-redirect" title="Lightcurve">lightcurve</a> of <i>Ostro</i> was obtained from photometric observations by American astronomer <a href="/wiki/Brian_D._Warner" title="Brian D. Warner">Brian Warner</a>. Lightcurve analysis gave a well-defined <a href="/wiki/Rotation_period" class="mw-redirect" title="Rotation period">rotation period</a> of 6.503 hours with a brightness amplitude of 0.79 <a href="/wiki/Magnitude_(astronomy)" title="Magnitude (astronomy)">magnitude</a> (<span style="font-size:85%;"><a href="/wiki/LCDB_quality_code" class="mw-redirect" title="LCDB quality code">U=3</a></span>).<sup id="cite_ref-Warner-2012s_6-1" class="reference"><a href="#cite_note-Warner-2012s-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Naming">Naming</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3169_Ostro&action=edit&section=3" title="Edit section: Naming"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>This <a href="/wiki/Minor_planet" title="Minor planet">minor planet</a> was named after American planetary scientist <a href="/wiki/Steven_J._Ostro" title="Steven J. Ostro">Steven J. Ostro</a> at the Jet Propulsion Laboratory of the California Institute of Technology.<sup id="cite_ref-springer_2-2" class="reference"><a href="#cite_note-springer-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The approved naming citation was published by the <a href="/wiki/Minor_Planet_Center" title="Minor Planet Center">Minor Planet Center</a> on 14 April 1987 (<span style="font-size:85%;"><a href="/wiki/Minor_Planet_Circulars" class="mw-redirect" title="Minor Planet Circulars">M.P.C.</a> 11749</span>).<sup id="cite_ref-MPC-Circulars-Archive_7-0" class="reference"><a href="#cite_note-MPC-Circulars-Archive-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3169_Ostro&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-jpldata-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-jpldata_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-jpldata_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-jpldata_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-jpldata_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-jpldata_1-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-jpldata_1-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-jpldata_1-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-jpldata_1-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-jpldata_1-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-jpldata_1-9"><sup><i><b>j</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.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.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background: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.id-lock-subscription a{background: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:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.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:#085;margin-left:0.3em}.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}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170423154345/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003169">"JPL Small-Body Database Browser: 3169 Ostro (1981 LA)"</a> (2017-06-04 last obs.). Jet Propulsion Laboratory. Archived from <a rel="nofollow" class="external text" href="https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003169">the original</a> on 23 April 2017<span class="reference-accessdate">. Retrieved <span class="nowrap">15 June</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=JPL+Small-Body+Database+Browser%3A+3169+Ostro+%281981+LA%29&rft.pub=Jet+Propulsion+Laboratory&rft_id=https%3A%2F%2Fssd.jpl.nasa.gov%2Fsbdb.cgi%3Fsstr%3D2003169&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> <li id="cite_note-springer-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-springer_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-springer_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-springer_2-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSchmadel2007" class="citation book cs1">Schmadel, Lutz D. (2007). "(3169) Ostro". <i>Dictionary of Minor Planet Names – (3169) Ostro</i>. <a href="/wiki/Springer_Berlin_Heidelberg" class="mw-redirect" title="Springer Berlin Heidelberg">Springer Berlin Heidelberg</a>. p. 262. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2F978-3-540-29925-7_3170">10.1007/978-3-540-29925-7_3170</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-3-540-00238-3" title="Special:BookSources/978-3-540-00238-3"><bdi>978-3-540-00238-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=%283169%29+Ostro&rft.btitle=Dictionary+of+Minor+Planet+Names+%E2%80%93+%283169%29+Ostro&rft.pages=262&rft.pub=Springer+Berlin+Heidelberg&rft.date=2007&rft_id=info%3Adoi%2F10.1007%2F978-3-540-29925-7_3170&rft.isbn=978-3-540-00238-3&rft.aulast=Schmadel&rft.aufirst=Lutz+D.&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> <li id="cite_note-MPC-Ostro-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-MPC-Ostro_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-MPC-Ostro_3-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.minorplanetcenter.net/db_search/show_object?object_id=3169">"3169 Ostro (1981 LA)"</a>. <i>Minor Planet Center</i><span class="reference-accessdate">. Retrieved <span class="nowrap">15 June</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Minor+Planet+Center&rft.atitle=3169+Ostro+%281981+LA%29&rft_id=https%3A%2F%2Fwww.minorplanetcenter.net%2Fdb_search%2Fshow_object%3Fobject_id%3D3169&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> <li id="cite_note-lcdb-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-lcdb_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-lcdb_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-lcdb_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-lcdb_4-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-lcdb_4-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-lcdb_4-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=3169%7COstro">"LCDB Data for (3169) Ostro"</a>. Asteroid Lightcurve Database (LCDB)<span class="reference-accessdate">. Retrieved <span class="nowrap">15 June</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=LCDB+Data+for+%283169%29+Ostro&rft.pub=Asteroid+Lightcurve+Database+%28LCDB%29&rft_id=http%3A%2F%2Fwww.minorplanet.info%2FPHP%2FgenerateOneAsteroidInfo.php%3FAstInfo%3D3169%257COstro&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> <li id="cite_note-Masiero-2011-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-Masiero-2011_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Masiero-2011_5-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Masiero-2011_5-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMasieroMainzerGravBauer2011" class="citation journal cs1">Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M">"Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters"</a>. <i>The Astrophysical Journal</i>. <b>741</b> (2): 20. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/1109.4096">1109.4096</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2011ApJ...741...68M">2011ApJ...741...68M</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F0004-637X%2F741%2F2%2F68">10.1088/0004-637X/741/2/68</a><span class="reference-accessdate">. Retrieved <span class="nowrap">15 June</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=Main+Belt+Asteroids+with+WISE%2FNEOWISE.+I.+Preliminary+Albedos+and+Diameters&rft.volume=741&rft.issue=2&rft.pages=20&rft.date=2011-11&rft_id=info%3Aarxiv%2F1109.4096&rft_id=info%3Adoi%2F10.1088%2F0004-637X%2F741%2F2%2F68&rft_id=info%3Abibcode%2F2011ApJ...741...68M&rft.aulast=Masiero&rft.aufirst=Joseph+R.&rft.au=Mainzer%2C+A.+K.&rft.au=Grav%2C+T.&rft.au=Bauer%2C+J.+M.&rft.au=Cutri%2C+R.+M.&rft.au=Dailey%2C+J.&rft.au=Eisenhardt%2C+P.+R.+M.&rft.au=McMillan%2C+R.+S.&rft.au=Spahr%2C+T.+B.&rft.au=Skrutskie%2C+M.+F.&rft.au=Tholen%2C+D.&rft.au=Walker%2C+R.+G.&rft.au=Wright%2C+E.+L.&rft.au=DeBaun%2C+E.&rft.au=Elsbury%2C+D.&rft.au=Gautier%2C+T.+IV&rft.au=Gomillion%2C+S.&rft.au=Wilkins%2C+A.&rft_id=http%3A%2F%2Fadsabs.harvard.edu%2Fcgi-bin%2Fbib_query%3Fbibcode%3D2011ApJ...741...68M&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> <li id="cite_note-Warner-2012s-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-Warner-2012s_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Warner-2012s_6-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWarner,_Brian_D.2012" class="citation journal cs1">Warner, Brian D. (October 2012). <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..245W">"Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2012 March - June"</a>. <i>The Minor Planet Bulletin</i>. <b>39</b> (4): 245–252. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2012MPBu...39..245W">2012MPBu...39..245W</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1052-8091">1052-8091</a><span class="reference-accessdate">. Retrieved <span class="nowrap">15 June</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Minor+Planet+Bulletin&rft.atitle=Asteroid+Lightcurve+Analysis+at+the+Palmer+Divide+Observatory%3A+2012+March+-+June&rft.volume=39&rft.issue=4&rft.pages=245-252&rft.date=2012-10&rft.issn=1052-8091&rft_id=info%3Abibcode%2F2012MPBu...39..245W&rft.au=Warner%2C+Brian+D.&rft_id=http%3A%2F%2Fadsabs.harvard.edu%2Fcgi-bin%2Fbib_query%3Fbibcode%3D2012MPBu...39..245W&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> <li id="cite_note-MPC-Circulars-Archive-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-MPC-Circulars-Archive_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html">"MPC/MPO/MPS Archive"</a>. <i>Minor Planet Center</i><span class="reference-accessdate">. Retrieved <span class="nowrap">15 June</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Minor+Planet+Center&rft.atitle=MPC%2FMPO%2FMPS+Archive&rft_id=https%3A%2F%2Fwww.minorplanetcenter.net%2Fiau%2FECS%2FMPCArchive%2FMPCArchive_TBL.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3A3169+Ostro" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=3169_Ostro&action=edit&section=5" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.minorplanetobserver.com/pdolc/A3169_2012.HTM">Lightcurve plot of 3169 Ostro</a>, Palmer Divide Observatory, <a href="/wiki/Brian_D._Warner" title="Brian D. Warner">B. D. Warner</a> (2012)</li> <li><a rel="nofollow" class="external text" href="http://www.minorplanet.info/PHP/lcdbsummaryquery.php">Asteroid Lightcurve Database (LCDB)</a>, query form (<a rel="nofollow" class="external text" href="http://www.minorplanet.info/lightcurvedatabase.html">info</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html">Archived</a> 16 December 2017 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>)</li> <li><a rel="nofollow" class="external text" href="http://www.johnstonsarchive.net/astro/asteroidmoons.html">Asteroids with Satellites</a>, Robert Johnston, johnstonsarchive.net</li> <li><a rel="nofollow" class="external text" href="https://books.google.com/books?id=aeAg1X7afOoC&pg">Dictionary of Minor Planet Names</a>, Google books</li> <li><a rel="nofollow" class="external text" href="http://obswww.unige.ch/~behrend/page_cou.html">Asteroids and comets rotation curves, CdR</a> – Observatoire de Genève, Raoul Behrend</li> <li><a rel="nofollow" class="external text" href="https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html">Discovery Circumstances: Numbered Minor Planets (1)-(5000)</a> – Minor Planet Center</li> <li><a rel="nofollow" class="external text" href="https://newton.spacedys.com/astdys/index.php?n=3169&pc=1.1.0">3169 Ostro</a> at <i>AstDyS-2, Asteroids—Dynamic Site</i> <ul><li><a rel="nofollow" class="external text" href="https://newton.spacedys.com/astdys/index.php?n=3169&pc=1.1.3.0">Ephemeris</a> <b>·</b> <a rel="nofollow" class="external text" href="https://newton.spacedys.com/astdys/index.php?n=3169&pc=1.1.4.0">Observation prediction</a> <b>·</b> <a rel="nofollow" class="external text" href="https://newton.spacedys.com/astdys/index.php?n=3169&pc=1.1.1">Orbital info</a> <b>·</b> <a rel="nofollow" class="external text" href="https://newton.spacedys.com/astdys/index.php?n=3169&pc=1.1.6">Proper elements</a> <b>·</b> <a rel="nofollow" class="external text" href="https://newton.spacedys.com/astdys/index.php?n=3169&pc=1.1.7.0">Observational info</a></li></ul></li> <li><a rel="nofollow" class="external text" href="https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20003169">3169 Ostro</a> at the <i><a href="/wiki/JPL_Small-Body_Database" title="JPL Small-Body Database">JPL Small-Body Database</a></i> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q514222#P716" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, 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href="https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20003169&view=P">Physical parameters</a></li></ul></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.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 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minor planets">Minor planets navigator</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3168_Lomnick%C3%BD_%C5%A0t%C3%ADt" class="mw-redirect" title="3168 Lomnický Štít">3168 Lomnický Štít </a></li> <li><b><a href="/wiki/List_of_minor_planets:_3001%E2%80%934000#169" title="List of minor planets: 3001–4000">3169 Ostro</a></b></li> <li><a href="/wiki/3170_Dzhanibekov" class="mw-redirect" title="3170 Dzhanibekov">3170 Dzhanibekov</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Small_Solar_System_bodies" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Small_Solar_System_bodies" title="Template:Small Solar System bodies"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Small_Solar_System_bodies" title="Template talk:Small Solar System bodies"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Small_Solar_System_bodies" title="Special:EditPage/Template:Small Solar System bodies"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Small_Solar_System_bodies" style="font-size:114%;margin:0 4em"><a href="/wiki/Small_Solar_System_body" title="Small Solar System body">Small Solar System bodies</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Minor_planet" title="Minor planet">Minor planets</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><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Minor-planet_designation" title="Minor-planet designation">Designation</a></li> <li><a href="/wiki/List_of_minor-planet_groups" title="List of minor-planet groups">Groups</a></li> <li><a href="/wiki/List_of_minor_planets" title="List of minor planets">List</a></li> <li><a href="/wiki/Minor-planet_moon" title="Minor-planet moon">Moon</a></li> <li><a href="/wiki/Meanings_of_minor-planet_names" title="Meanings of minor-planet names">Meanings of names</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Asteroid" title="Asteroid">Asteroid</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="/wiki/Active_asteroid" title="Active asteroid">Active</a></li> <li><a href="/wiki/Aten_asteroid" title="Aten asteroid">Aten asteroid</a></li> <li><a href="/wiki/Asteroid_belt" title="Asteroid belt">Asteroid belt</a></li> <li><a href="/wiki/Asteroid_family" title="Asteroid family">Family</a></li> <li><a href="/wiki/Jupiter_trojan" title="Jupiter trojan">Jupiter trojan</a></li> <li><a href="/wiki/Near-Earth_object" title="Near-Earth object">Near-Earth</a></li> <li><a href="/wiki/Asteroid_spectral_types" title="Asteroid spectral types">Spectral types</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Distant_minor_planet" title="Distant minor planet">Distant minor planet</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><ul><li><a href="/wiki/Centaur_(small_Solar_System_body)" title="Centaur (small Solar System body)">Centaur</a></li> <li><a href="/wiki/Neptune_trojan" title="Neptune trojan">Neptune trojan</a></li></ul></li> <li><a href="/wiki/Damocloid" title="Damocloid">Damocloid</a></li> <li><a href="/wiki/Trans-Neptunian_object" title="Trans-Neptunian object">Trans-Neptunian object</a> <ul><li><a href="/wiki/Detached_object" title="Detached object">Detached</a></li> <li><a href="/wiki/Kuiper_belt" title="Kuiper belt">Kuiper belt</a></li> <li><a href="/wiki/Oort_cloud" title="Oort cloud">Oort cloud</a></li> <li><a href="/wiki/Scattered_disc" title="Scattered disc">Scattered disc</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="/wiki/Comet" title="Comet">Comets</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="/wiki/Extinct_comet" title="Extinct comet">Extinct</a></li> <li><a href="/wiki/Great_comet" title="Great comet">Great</a></li> <li><a href="/wiki/List_of_Halley-type_comets" title="List of Halley-type comets">Halley-type</a></li> <li><a href="/wiki/List_of_hyperbolic_comets" title="List of hyperbolic comets">Hyperbolic</a></li> <li><a href="/wiki/List_of_long-period_comets" title="List of long-period comets">Long-period</a></li> <li><a href="/wiki/Lost_comet" title="Lost comet">Lost</a></li> <li><a href="/wiki/List_of_near-parabolic_comets" title="List of near-parabolic comets">Near-parabolic</a></li> <li><a href="/wiki/List_of_periodic_comets" title="List of periodic comets">Periodic</a></li> <li><a href="/wiki/Sungrazing_comet" title="Sungrazing comet">Sungrazing</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</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="/wiki/Cosmic_dust" title="Cosmic dust">Cosmic dust</a></li> <li><a href="/wiki/Meteoroid" title="Meteoroid">Meteoroids</a></li> <li><a href="/wiki/Space_debris" title="Space debris">Space debris</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox authority-control" aria-label="Navbox" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Help:Authority_control" title="Help:Authority control">Authority control databases</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q514222#identifiers" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=20003169">JPL SBDB</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://www.minorplanetcenter.net/db_search/show_object?object_id=3169">MPC</a></span></li></ul></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=3169_Ostro&oldid=1233139625">https://en.wikipedia.org/w/index.php?title=3169_Ostro&oldid=1233139625</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Minor_planet_object_articles_(numbered)" title="Category:Minor planet object articles (numbered)">Minor planet object 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