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vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Orbit_lowering"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Orbit lowering</span> </div> </a> <ul id="toc-Orbit_lowering-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 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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">Landsat 7</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 26 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-26" 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">26 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%84%D8%A7%D9%86%D8%AF_%D8%B3%D8%A7%D8%AA_7" title="لاند سات 7 – Arabic" lang="ar" hreflang="ar" data-title="لاند سات 7" data-language-autonym="العربية" data-language-local-name="Arabic" 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/Landsat_7" title="Landsat 7 – Belarusian" lang="be" hreflang="be" data-title="Landsat 7" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Catalan" lang="ca" hreflang="ca" data-title="Landsat 7" data-language-autonym="Català" data-language-local-name="Catalan" 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/Landsat_7" title="Landsat 7 – Czech" lang="cs" hreflang="cs" data-title="Landsat 7" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Danish" lang="da" hreflang="da" data-title="Landsat 7" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – German" lang="de" hreflang="de" data-title="Landsat 7" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Spanish" lang="es" hreflang="es" data-title="Landsat 7" 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/Landsat_7" title="Landsat 7 – Esperanto" lang="eo" hreflang="eo" data-title="Landsat 7" 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/Landsat_7" title="Landsat 7 – Basque" lang="eu" hreflang="eu" data-title="Landsat 7" 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/%D9%84%D9%86%D8%AF%D8%B3%D8%AA_%DB%B7" title="لندست ۷ – Persian" lang="fa" hreflang="fa" data-title="لندست ۷" 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/Landsat_7" title="Landsat 7 – French" lang="fr" hreflang="fr" data-title="Landsat 7" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Indonesian" lang="id" hreflang="id" data-title="Landsat 7" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" 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/Landsat_7" title="Landsat 7 – Italian" lang="it" hreflang="it" data-title="Landsat 7" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Hungarian" lang="hu" hreflang="hu" data-title="Landsat 7" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Malay" lang="ms" hreflang="ms" data-title="Landsat 7" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" 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/Landsat_7" title="Landsat 7 – Dutch" lang="nl" hreflang="nl" data-title="Landsat 7" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%B3%E3%83%89%E3%82%B5%E3%83%83%E3%83%887%E5%8F%B7" title="ランドサット7号 – Japanese" lang="ja" hreflang="ja" data-title="ランドサット7号" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Landsat 7" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Polish" lang="pl" hreflang="pl" data-title="Landsat 7" 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/Landsat_7" title="Landsat 7 – Portuguese" lang="pt" hreflang="pt" data-title="Landsat 7" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Landsat-7" title="Landsat-7 – Russian" lang="ru" hreflang="ru" data-title="Landsat-7" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Landsat_7" title="Landsat 7 – Swedish" lang="sv" hreflang="sv" data-title="Landsat 7" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%81%E0%B8%A5%E0%B8%99%E0%B8%94%E0%B9%8C%E0%B9%81%E0%B8%8B%E0%B8%97_7" title="แลนด์แซท 7 – Thai" lang="th" hreflang="th" data-title="แลนด์แซท 7" data-language-autonym="ไทย" data-language-local-name="Thai" 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/Landsat_7" title="Landsat 7 – Turkish" lang="tr" hreflang="tr" data-title="Landsat 7" data-language-autonym="Türkçe" data-language-local-name="Turkish" 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/Landsat_7" title="Landsat 7 – Ukrainian" lang="uk" hreflang="uk" data-title="Landsat 7" 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/Landsat_7" title="Landsat 7 – Vietnamese" lang="vi" hreflang="vi" data-title="Landsat 7" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</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/Q605802#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Landsat_7" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Landsat_7" rel="discussion" title="Discuss improvements to the content page [t]" 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free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">American Earth-observing satellite launched in 1999 as part of the Landsat program</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .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><style data-mw-deduplicate="TemplateStyles:r1089065853">.mw-parser-output .ib-spaceflight{width:25em}.mw-parser-output .ib-spaceflight .infobox-header{background:#ddf}.mw-parser-output .ib-edit-wd{float:right}</style><table class="infobox ib-spaceflight"><caption class="infobox-title">Landsat 7</caption><tbody><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Landsat7photo.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Landsat7photo.jpg/260px-Landsat7photo.jpg" decoding="async" width="260" height="325" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Landsat7photo.jpg/390px-Landsat7photo.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Landsat7photo.jpg/520px-Landsat7photo.jpg 2x" data-file-width="576" data-file-height="720" /></a></span><div class="infobox-caption">Landsat 7 before launch</div></td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label">Mission type</th><td class="infobox-data"><a href="/wiki/Satellite_imagery" title="Satellite imagery">Satellite imagery</a></td></tr><tr><th scope="row" class="infobox-label">Operator</th><td class="infobox-data"><a href="/wiki/NASA" title="NASA">NASA</a> / <a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">USGS</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/International_Designator" title="International Designator">COSPAR ID</a></th><td class="infobox-data"><span class="nowrap"><a rel="nofollow" class="external text" href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1999-020A">1999-020A</a></span><span class="ib-edit-wd"> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q605802#P247" 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></span></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Satellite_Catalog_Number" title="Satellite Catalog Number">SATCAT <abbr title="number">no.</abbr></a></th><td class="infobox-data">25682</td></tr><tr><th scope="row" class="infobox-label">Mission duration</th><td class="infobox-data">5 years (planned)<br /> 25 years, 9 months, 21 days <br /> (in progress)</td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Spacecraft properties</th></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Satellite_bus" title="Satellite bus">Bus</a></th><td class="infobox-data"><a href="/wiki/TIROS-N" title="TIROS-N">TIROS-N</a></td></tr><tr><th scope="row" class="infobox-label">Manufacturer</th><td class="infobox-data"><a href="/wiki/Lockheed_Martin_Space_Systems" class="mw-redirect" title="Lockheed Martin Space Systems">Lockheed Martin Space Systems</a></td></tr><tr><th scope="row" class="infobox-label">Launch mass</th><td class="infobox-data">1973 kg</td></tr><tr><th scope="row" class="infobox-label">Dimensions</th><td class="infobox-data">4.04 metre long<br />2.74 metre diameter</td></tr><tr><th scope="row" class="infobox-label">Power</th><td class="infobox-data">1550 watts</td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Start of mission</th></tr><tr><th scope="row" class="infobox-label">Launch date</th><td class="infobox-data">15 April 1999, 18:32:00 UTC</td></tr><tr><th scope="row" class="infobox-label">Rocket</th><td class="infobox-data"><a href="/wiki/Delta_II" title="Delta II">Delta II 7920</a></td></tr><tr><th scope="row" class="infobox-label">Launch site</th><td class="infobox-data"><a href="/wiki/Vandenberg_Air_Force_Base" class="mw-redirect" title="Vandenberg Air Force Base">Vandenberg</a>, <a href="/wiki/Vandenberg_Space_Launch_Complex_2" title="Vandenberg Space Launch Complex 2">SLC-2W</a></td></tr><tr><th scope="row" class="infobox-label">Contractor</th><td class="infobox-data"><a href="/wiki/Boeing" title="Boeing">Boeing</a></td></tr><tr><th scope="row" class="infobox-label">Entered service</th><td class="infobox-data">1999</td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Orbital parameters</th></tr><tr><th scope="row" class="infobox-label">Reference system</th><td class="infobox-data"><a href="/wiki/Geocentric_orbit" title="Geocentric orbit">Geocentric orbit</a><sup id="cite_ref-n2yo_1-0" class="reference"><a href="#cite_note-n2yo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Regime</th><td class="infobox-data"><a href="/wiki/Sun-synchronous_orbit" title="Sun-synchronous orbit">Sun-synchronous orbit</a></td></tr><tr><th scope="row" class="infobox-label">Altitude</th><td class="infobox-data">705 km</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Orbital_inclination" title="Orbital inclination">Inclination</a></th><td class="infobox-data">98.21°</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Orbital_period" title="Orbital period">Period</a></th><td class="infobox-data">98.83 minutes</td></tr><tr><th scope="row" class="infobox-label">Repeat interval</th><td class="infobox-data">16 days</td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-below"><span typeof="mw:File"><a href="/wiki/File:Landsat-7_Mission_Patch.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Landsat-7_Mission_Patch.png/130px-Landsat-7_Mission_Patch.png" decoding="async" width="130" height="127" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Landsat-7_Mission_Patch.png/195px-Landsat-7_Mission_Patch.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/14/Landsat-7_Mission_Patch.png/260px-Landsat-7_Mission_Patch.png 2x" data-file-width="1194" data-file-height="1166" /></a></span> <div style="clear:both;" class=""></div></td></tr></tbody></table> <p><b>Landsat 7</b> is the seventh <a href="/wiki/Satellite" title="Satellite">satellite</a> of the <a href="/wiki/Landsat_program" title="Landsat program">Landsat program</a>. Launched on 15 April 1999, Landsat 7's primary goal is to refresh the global archive of satellite photos, providing up-to-date and cloud-free images. The <a href="/wiki/Landsat_program" title="Landsat program">Landsat program</a> is managed and operated by the <a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">United States Geological Survey</a>, and data from Landsat 7 is collected and distributed by the USGS. The <a href="/wiki/NASA_WorldWind" title="NASA WorldWind">NASA WorldWind</a> project allows 3D images from Landsat 7 and other sources to be freely navigated and viewed from any angle. The satellite's companion, <a href="/wiki/Earth_Observing-1" title="Earth Observing-1">Earth Observing-1</a>, trailed by one minute and followed the same orbital characteristics, but in 2011 its fuel was depleted and EO-1's orbit began to degrade.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Landsat 7 was built by <a href="/wiki/Lockheed_Martin_Space_Systems" class="mw-redirect" title="Lockheed Martin Space Systems">Lockheed Martin Space Systems</a>. </p><p>In 2016, NASA announced it planned to attempt the first ever refueling of a live satellite by refueling Landsat 7 in 2020 with the <b><a href="/wiki/OSAM-1" title="OSAM-1">OSAM-1</a></b> mission;<sup id="cite_ref-Kleiner_3-0" class="reference"><a href="#cite_note-Kleiner-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Henshaw_4-0" class="reference"><a href="#cite_note-Henshaw-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> however after multiple delays, NASA announced the cancellation of OSAM-1 in March 2024.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Satellite_specifications">Satellite specifications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=1" title="Edit section: Satellite specifications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-left" typeof="mw:File"><a href="/wiki/File:Landsat7schematic.png" class="mw-file-description" title="Landsat 7 Schematic"><img alt="Landsat 7 Schematic" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Landsat7schematic.png/200px-Landsat7schematic.png" decoding="async" width="200" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Landsat7schematic.png/300px-Landsat7schematic.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/db/Landsat7schematic.png/400px-Landsat7schematic.png 2x" data-file-width="420" data-file-height="305" /></a><figcaption>Landsat 7 Schematic</figcaption></figure> <p>Landsat 7 was designed to last for five years, and has the capacity to collect and transmit up to 532 images per day. It is in a <a href="/wiki/Polar_orbit" title="Polar orbit">polar</a>, <a href="/wiki/Sun-synchronous_orbit" title="Sun-synchronous orbit">Sun-synchronous orbit</a>, meaning it scans across the entire Earth's surface. With an altitude of 705 km, it takes 232 orbits, or 16 days, to do so. The satellite weighs 1973 kg, is 4.04 m long, and 2.74 m in diameter. Unlike its predecessors, Landsat 7 has a <a href="/wiki/Solid-state_drive" title="Solid-state drive">solid-state memory</a> of 378 <a href="/wiki/Gigabit" class="mw-redirect" title="Gigabit">Gbits</a> (roughly 100 images). The main instrument on board Landsat 7 is the Enhanced Thematic Mapper Plus (ETM+), a <a href="/wiki/Whisk_broom_scanner" title="Whisk broom scanner">whisk broom scanner</a> <a href="/wiki/Image_sensor" title="Image sensor">image sensor</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Instruments">Instruments</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=2" title="Edit section: Instruments"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>A panchromatic band with 15 metre <a href="/wiki/Spatial_resolution" title="Spatial resolution">spatial resolution</a> (band 8)</li> <li><a href="/wiki/Visible_spectrum" title="Visible spectrum">Visible</a> (reflected light) bands in the spectrum of blue, green, red, <a href="/wiki/Infrared" title="Infrared">near-infrared</a> (NIR), and mid-infrared (MIR) with 30 metre spatial resolution (bands 1–5, 7)</li> <li>A thermal <a href="/wiki/Infrared" title="Infrared">infrared</a> channel with 60 metre spatial resolution (band 6)</li> <li>Full aperture, 5% absolute <a href="/wiki/Radiometric" class="mw-redirect" title="Radiometric">radiometric</a> calibration</li></ul> <div class="mw-heading mw-heading2"><h2 id="Scan_Line_Corrector_failure">Scan Line Corrector failure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=3" title="Edit section: Scan Line Corrector failure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Landsat-7_Scan_Line_Corrector_operation.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Landsat-7_Scan_Line_Corrector_operation.jpg/220px-Landsat-7_Scan_Line_Corrector_operation.jpg" decoding="async" width="220" height="295" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/1/15/Landsat-7_Scan_Line_Corrector_operation.jpg 1.5x" data-file-width="290" data-file-height="389" /></a><figcaption>The effect of the SLC on ETM+ scans.</figcaption></figure> <p>On 31 May 2003, the Scan Line Corrector (SLC) in the ETM+ instrument failed. The SLC consists of a pair of small mirrors that rotate about an axis in tandem with the motion of the main ETM+ scan mirror. The purpose of the SLC is to compensate for the forward motion (along-track) of the spacecraft so that the resulting scans are aligned parallel to each other. Without the effects of the SLC, the instrument images the Earth in a "zig-zag" fashion, resulting in some areas that are imaged twice and others that are not imaged at all. The net effect is that approximately 22% of the data in a Landsat 7 scene is missing when acquired without a functional SLC.<sup id="cite_ref-ls7-slc_8-0" class="reference"><a href="#cite_note-ls7-slc-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>A month after the SLC failure, the <a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">USGS</a> compiled an assessment of the degraded data produced with the failed SLC. The assessment included input from scientists from USGS, <a href="/wiki/NASA" title="NASA">NASA</a>, and the Landsat 7 science team, and concluded that the results were still usable for many scientific applications and that there were several potential approaches to compensate for the missing data.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Satellite_imagery">Satellite imagery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=4" title="Edit section: Satellite imagery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Lan7_washington_dc.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/06/Lan7_washington_dc.jpg/220px-Lan7_washington_dc.jpg" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/06/Lan7_washington_dc.jpg/330px-Lan7_washington_dc.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/0/06/Lan7_washington_dc.jpg 2x" data-file-width="425" data-file-height="425" /></a><figcaption><a href="/wiki/False_color" title="False color">False color</a> IR image of <a href="/wiki/Washington,_D.C." title="Washington, D.C.">Washington, D.C.</a>, taken by Landsat 7.</figcaption></figure> <p>In August 1998, <a href="/wiki/NASA" title="NASA">NASA</a> contracted <a href="/wiki/EarthSat" title="EarthSat">EarthSat</a> to produce Landsat GeoCover (<i>Geocover 2000</i> in <a href="/wiki/NASA_WorldWind" title="NASA WorldWind">NASA WorldWind</a>) — a positionally accurate orthorectified Landsat <a href="/wiki/Thematic_Mapper" title="Thematic Mapper">Thematic Mapper</a> and <a href="/wiki/Multispectral_Scanner" title="Multispectral Scanner">Multispectral Scanner</a> imagery covering the majority of the Earth's land mass. The contract was part of the NASA Scientific Data Purchase which was administrated through NASA's <a href="/wiki/Stennis_Space_Center" title="Stennis Space Center">John C. Stennis Space Center</a>. <a href="/wiki/EarthSat" title="EarthSat">GeoCover</a> was later enhanced to EarthSat NaturalVue, a simulated natural color Landsat 7 derived circa year 2000, orthorectified, mosaicked and color balanced digital image dataset. Other commercial simulated true color 15-metre global imagery products built from the NASA Landsat 7 imagery include TerraColor from Earthstar Geographics, TruEarth (found in <a href="/wiki/Google_Earth" title="Google Earth">Google Earth</a> and <a href="/wiki/Google_Maps" title="Google Maps">Google Maps</a>) from TerraMetrics, BrightEarth from ComputaMaps, simulated natural color from Atlogis and a product of i-cubed used in <a href="/wiki/NASA_WorldWind" title="NASA WorldWind">NASA WorldWind</a>. </p><p>Large parts of the Earth surface displayed on <a href="/wiki/Web_mapping" title="Web mapping">web mapping</a> services like <a href="/wiki/Google_Maps" title="Google Maps">Google Maps</a> / <a href="/wiki/Google_Earth" title="Google Earth">Google Earth</a>, <a href="/wiki/Bing_Maps" title="Bing Maps">MSN Maps</a> or <a href="/wiki/Yahoo!_Maps" class="mw-redirect" title="Yahoo! Maps">Yahoo! Maps</a> are based on enhanced and color balanced Landsat 7 imagery. </p> <div class="mw-heading mw-heading2"><h2 id="Orbit_lowering">Orbit lowering</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=5" title="Edit section: Orbit lowering"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Landsat 7 required regular orbital maneuvers to ensure that the <a href="/wiki/Local_mean_time" title="Local mean time">local mean time</a> (LMT) data acquisitions were maintained. The final such maneuver took place on February 7, 2017. From that point forward, the satellite's orbit began to slowly degrade (lower) such that by 2021 it had faded from the desired 10:00 AM LMT to about 9:15 AM.<sup id="cite_ref-usgs-ls7_10-0" class="reference"><a href="#cite_note-usgs-ls7-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>With the September 27, 2021 launch of Landsat 9, Landsat 7 is to be decommissioned. Its orbit has degraded such that Landsat 9 can move into the 705-km ) "standard" orbit altitude, and take Landsat 7's place in an orbit that allows data to be collected eight days out of phase with Landsat 8 (with two satellites in orbit, a Landsat scene is collected over every location on Earth every eight days). Landsat 7's 9:15 AM LMT acquisition will preclude acquiring high-quality and heritage-continuing data. </p><p>On April 6, 2022, the science mission was suspended and the image sensor was placed into standby mode as the satellite's orbit was lowered.<sup id="cite_ref-usgs-ls7_10-1" class="reference"><a href="#cite_note-usgs-ls7-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>NASA is exploring the possibility of using NASA's OSAM-1 robotic servicing mission to refuel Landsat 7,<sup id="cite_ref-Kleiner_3-1" class="reference"><a href="#cite_note-Kleiner-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> primarily to ensure successful decommissioning, but also to provide the possibility of turning the satellite into a transfer radiometer. This would allow it to act as a calibration instrument for Landsats 8 and 9, and perhaps even extend its scientific utility.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>On May 5, 2022, imaging was once again resumed, to assess the utility of imagery collected at the new lower orbit and earlier equatorial crossing time.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1266661725">.mw-parser-output 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class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Landsat_7&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <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 class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-n2yo-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-n2yo_1-0">^</a></b></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="http://www.n2yo.com/satellite/?s=25682">"LANDSAT 7 Satellite details 1999-020A NORAD 25682"</a>. 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Retrieved <span class="nowrap">10 March</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Annual+Review+of+Control%2C+Robotics%2C+and+Autonomous+Systems&rft.atitle=Grappling+Spacecraft&rft.volume=5&rft.pages=%3Cspan+class%3D%22nowrap%22%3E137-%3C%2Fspan%3E159&rft.date=2022-05-03&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A242628083%23id-name%3DS2CID&rft.issn=2573-5144&rft_id=info%3Adoi%2F10.1146%2Fannurev-control-042920-011106&rft.aulast=Henshaw&rft.aufirst=Carl+Glen&rft.au=Glassner%2C+Samantha&rft.au=Naasz%2C+Bo&rft.au=Roberts%2C+Brian&rft_id=https%3A%2F%2Fdoi.org%2F10.1146%2Fannurev-control-042920-011106&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALandsat+7" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</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://nexis.gsfc.nasa.gov/OSAM-1.html">"OSAM-1: Robotic Servicing Mission | NASA's Exploration & In-space Services"</a>. <i>NASA NExIS</i>. 3 July 2020. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20200703232000/https://nexis.gsfc.nasa.gov/OSAM-1.html">Archived</a> from the original on 3 July 2020<span class="reference-accessdate">. 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Retrieved <span class="nowrap">7 May</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.usgs.gov&rft.atitle=Landsat+7+%7C+U.S.+Geological+Survey&rft_id=https%3A%2F%2Fwww.usgs.gov%2Flandsat-missions%2Flandsat-7&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALandsat+7" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</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://directory.eoportal.org/web/eoportal/satellite-missions/l/landsat-7">"Landsat 7"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">27 September</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Landsat+7&rft_id=https%3A%2F%2Fdirectory.eoportal.org%2Fweb%2Feoportal%2Fsatellite-missions%2Fl%2Flandsat-7&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALandsat+7" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</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.usgs.gov/landsat-missions/news/landsat-7-data-acquired-lower-orbit-now-available">"Landsat 7 Data Acquired at Lower Orbit Now Available"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">14 April</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Landsat+7+Data+Acquired+at+Lower+Orbit+Now+Available&rft_id=https%3A%2F%2Fwww.usgs.gov%2Flandsat-missions%2Fnews%2Flandsat-7-data-acquired-lower-orbit-now-available&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALandsat+7" class="Z3988"></span></span> </li> </ol></div></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=Landsat_7&action=edit&section=8" 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="https://landsat.gsfc.nasa.gov/">NASA's Landsat 7 Website</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070825102639/http://landsathandbook.gsfc.nasa.gov/handbook/handbook_htmls/chapter5/chapter5.html">Landsat 7 Science Data Users Handbook</a></li> <li><a rel="nofollow" class="external text" href="https://landsat.usgs.gov/index.php">The USGS' Landsat Website</a></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/19990508193945/http://www.boeing.com/defense-space/space/delta/delta2/Landsat/index.html">"Landsat 7 Media Kit"</a>. <a href="/wiki/Boeing" title="Boeing">Boeing</a>. Archived from <a rel="nofollow" class="external text" href="http://www.boeing.com/defense-space/space/delta/delta2/Landsat/index.html">the original</a> on 8 May 1999.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Landsat+7+Media+Kit&rft.pub=Boeing&rft_id=http%3A%2F%2Fwww.boeing.com%2Fdefense-space%2Fspace%2Fdelta%2Fdelta2%2FLandsat%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALandsat+7" class="Z3988"></span></li> <li><a rel="nofollow" class="external text" href="https://worldwind.arc.nasa.gov/">NASA's World Wind Project</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20180106075159/http://worldwind.arc.nasa.gov/">Archived</a> 6 January 2018 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <ul><li><a rel="nofollow" class="external text" href="http://www.worldwindcentral.com/wiki/Landsat">List of Landsat layers available in World Wind</a></li></ul></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060316140207/https://zulu.ssc.nasa.gov/mrsid/">NASA Applied Sciences Directorate</a> website for free viewing/download of Landsat GeoCover band 742 mosaics</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060330030915/http://glcf.umiacs.umd.edu/index.shtml">University of Maryland Global Land Cover Facility</a> for free viewing/download of individual Landsat images, GeoCover mosaics, and other earth imagery data</li> <li><a rel="nofollow" class="external text" href="https://archive.today/20130103112210/http://www.geospatial.harris.com/">Harris GLOBE15</a> - Harris Corporation Geospatial website (includes 15m global data set details)</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20041015051943/http://www.earthsat.com/HTML/naturalvue/">EarthSat's NaturalVue 2000: Global natural color satellite imagery coverage (resolution 15 m), based on Landsat 7 data acquired between 1999 and 2001</a></li> <li><a rel="nofollow" class="external text" href="http://www.terracolor.net">TerraColor.Net</a> - TerraColor 15m imagery website</li> <li><a rel="nofollow" class="external text" href="http://www.truearth.com">TruEarth</a> 15m imagery website</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060818085754/http://iceds.ge.ucl.ac.uk/">ICEDS Webserver</a>, a free WMS compliant webserver, serving a variety of Geographic data including Landsat images</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070908073324/http://maps.atlogis.com/webmapping/htdocs/index.html">Atlogis Maps</a> and <a rel="nofollow" class="external text" href="http://www.atlogis.com/metamaps.html">Atlogis Meta-Maps</a>: Online-Viewer for Landsat 5 and Landsat 7 Natural Color Mosaic</li> <li><a rel="nofollow" class="external text" href="http://database.eohandbook.com/database/missionsummary.aspx?missionID=349">CEOS MIM Database Landsat 7 Entry</a></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 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program</a></div></th></tr><tr><td class="noviewer navbox-image" rowspan="1" style="width:1px;padding:0 2px 0 0"><div><span typeof="mw:File"><a href="/wiki/File:Landsat-7_Mission_Patch.png" class="mw-file-description" title="Landsat 7 mission patch"><img alt="Landsat 7 mission patch" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Landsat-7_Mission_Patch.png/50px-Landsat-7_Mission_Patch.png" decoding="async" width="50" height="49" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Landsat-7_Mission_Patch.png/75px-Landsat-7_Mission_Patch.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/14/Landsat-7_Mission_Patch.png/100px-Landsat-7_Mission_Patch.png 2x" data-file-width="1194" data-file-height="1166" /></a></span></div></td><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/Landsat_1" title="Landsat 1">Landsat 1</a></li> <li><a href="/wiki/Landsat_2" title="Landsat 2">2</a></li> <li><a href="/wiki/Landsat_3" title="Landsat 3">3</a></li> <li><a href="/wiki/Landsat_4" title="Landsat 4">4</a></li> <li><a href="/wiki/Landsat_5" title="Landsat 5">5</a></li> <li><a href="/wiki/Landsat_6" title="Landsat 6">6</a></li> <li><a class="mw-selflink selflink">7</a></li> <li><a href="/wiki/Landsat_8" title="Landsat 8">8</a></li> <li><a href="/wiki/Landsat_9" title="Landsat 9">9</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="1" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Landsat_Data_Continuity_Mission_Logo_(transparent).png" class="mw-file-description" title="Landsat Data Continuity Mission Logo"><img alt="Landsat Data Continuity Mission Logo" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/26/Landsat_Data_Continuity_Mission_Logo_%28transparent%29.png/50px-Landsat_Data_Continuity_Mission_Logo_%28transparent%29.png" decoding="async" width="50" height="37" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/26/Landsat_Data_Continuity_Mission_Logo_%28transparent%29.png/75px-Landsat_Data_Continuity_Mission_Logo_%28transparent%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/26/Landsat_Data_Continuity_Mission_Logo_%28transparent%29.png/100px-Landsat_Data_Continuity_Mission_Logo_%28transparent%29.png 2x" data-file-width="1860" data-file-height="1383" /></a></span></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="←_1998Orbital_launches_in_19992000_→618" 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:Orbital_launches_in_1999" title="Template:Orbital launches in 1999"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Orbital_launches_in_1999" title="Template talk:Orbital launches in 1999"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Orbital_launches_in_1999" title="Special:EditPage/Template:Orbital launches in 1999"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="←_1998Orbital_launches_in_19992000_→618" style="font-size:114%;margin:0 4em"><div style="float: left;"><a href="/wiki/1998_in_spaceflight" title="1998 in spaceflight">← 1998</a></div><a href="/wiki/1999_in_spaceflight" title="1999 in spaceflight"><span class="vevent"><span class="summary">Orbital launches in <span class="dtstart">1999</span></span></span></a><div style="float: right;"><a href="/wiki/2000_in_spaceflight" title="2000 in spaceflight">2000 →</a></div></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">January</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/Mars_Polar_Lander" title="Mars Polar Lander">Mars Polar Lander</a></li> <li><a href="/wiki/Formosat-1" title="Formosat-1">ROCSAT-1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">February</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/Stardust_(spacecraft)" title="Stardust (spacecraft)">Stardust</a></li> <li><a href="/w/index.php?title=Globalstar_23&action=edit&redlink=1" class="new" title="Globalstar 23 (page does not exist)">Globalstar 23</a>, <a href="/w/index.php?title=Globalstar_36&action=edit&redlink=1" class="new" title="Globalstar 36 (page does not exist)">Globalstar 36</a>, <a href="/w/index.php?title=Globalstar_38&action=edit&redlink=1" class="new" title="Globalstar 38 (page does not exist)">Globalstar 38</a>, <a href="/w/index.php?title=Globalstar_40&action=edit&redlink=1" class="new" title="Globalstar 40 (page does not exist)">Globalstar 40</a></li> <li><a href="/wiki/Galaxy_26" title="Galaxy 26">Telstar 6</a></li> <li><a href="/wiki/JCSAT-4A" title="JCSAT-4A">JCSAT-6</a></li> <li><u><a href="/wiki/Soyuz_TM-29" title="Soyuz TM-29">Soyuz TM-29</a></u></li> <li><a href="/wiki/ARGOS_(satellite)" title="ARGOS (satellite)">ARGOS</a>, <a href="/wiki/%C3%98rsted_(satellite)" title="Ørsted (satellite)">Ørsted</a>, <a href="/wiki/SUNSAT" title="SUNSAT">SUNSAT</a></li> <li><a href="/wiki/Arabsat_3A" class="mw-redirect" title="Arabsat 3A">Arabsat 3A</a>, <a href="/wiki/Skynet_4E" class="mw-redirect" title="Skynet 4E">Skynet 4E</a></li> <li><a href="/w/index.php?title=Globus_No.15&action=edit&redlink=1" class="new" title="Globus No.15 (page does not exist)">Globus No.15</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">March</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/Wide_Field_Infrared_Explorer" title="Wide Field Infrared Explorer">Wide Field Infrared Explorer</a></li> <li><a href="/w/index.php?title=Globalstar_23&action=edit&redlink=1" class="new" title="Globalstar 23 (page does not exist)">Globalstar 23</a>, <a href="/w/index.php?title=Globalstar_37&action=edit&redlink=1" class="new" title="Globalstar 37 (page does not exist)">Globalstar 37</a>, <a href="/w/index.php?title=Globalstar_41&action=edit&redlink=1" class="new" title="Globalstar 41 (page does not exist)">Globalstar 41</a>, <a href="/w/index.php?title=Globalstar_46&action=edit&redlink=1" class="new" title="Globalstar 46 (page does not exist)">Globalstar 46</a></li> <li><a href="/wiki/AsiaSat_3S" title="AsiaSat 3S">AsiaSat 3S</a></li> <li><a href="/w/index.php?title=DemoSat_(satellite)&action=edit&redlink=1" class="new" title="DemoSat (satellite) (page does not exist)">DemoSat</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">April</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/Progress_M-41" title="Progress M-41">Progress M-41</a>, <a href="/wiki/Sputnik_99" title="Sputnik 99">Sputnik 99</a></li> <li><a href="/wiki/INSAT-2E" title="INSAT-2E">INSAT-2E</a></li> <li><a href="/w/index.php?title=USA-142&action=edit&redlink=1" class="new" title="USA-142 (page does not exist)">USA-142</a></li> <li><a href="/w/index.php?title=Eutelsat_W3&action=edit&redlink=1" class="new" title="Eutelsat W3 (page does not exist)">Eutelsat W3</a></li> <li><a href="/w/index.php?title=Globalstar_19&action=edit&redlink=1" class="new" title="Globalstar 19 (page does not exist)">Globalstar 19</a>, <a href="/w/index.php?title=Globalstar_42&action=edit&redlink=1" class="new" title="Globalstar 42 (page does not exist)">Globalstar 42</a>, <a href="/w/index.php?title=Globalstar_44&action=edit&redlink=1" class="new" title="Globalstar 44 (page does not exist)">Globalstar 44</a>, <a href="/w/index.php?title=Globalstar_45&action=edit&redlink=1" class="new" title="Globalstar 45 (page does not exist)">Globalstar 45</a></li> <li><a class="mw-selflink selflink">Landsat 7</a></li> <li><a href="/wiki/UoSAT-12" title="UoSAT-12">UoSAT-12</a></li> <li><i><a href="/w/index.php?title=Ikonos-1&action=edit&redlink=1" class="new" title="Ikonos-1 (page does not exist)">Ikonos-1</a></i></li> <li><a href="/wiki/ABRIXAS" title="ABRIXAS">ABRIXAS</a>, <a href="/w/index.php?title=Megsat-0&action=edit&redlink=1" class="new" title="Megsat-0 (page does not exist)">Megsat-0</a></li> <li><a href="/wiki/USA-143" class="mw-redirect" title="USA-143">USA-143</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">May</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/Orion_3" title="Orion 3">Orion 3</a></li> <li><a href="/wiki/Feng_Yun_1C" class="mw-redirect" title="Feng Yun 1C">Feng Yun 1C</a>, <a href="/w/index.php?title=Shijian_5&action=edit&redlink=1" class="new" title="Shijian 5 (page does not exist)">Shijian 5</a></li> <li><a href="/wiki/TERRIERS" class="mw-redirect" title="TERRIERS">TERRIERS</a>, <a href="/wiki/MUBLCOM" title="MUBLCOM">MUBLCOM</a></li> <li><a href="/wiki/Nimiq_1" class="mw-redirect" title="Nimiq 1">Nimiq 1</a></li> <li><a href="/wiki/USA-144" class="mw-redirect" title="USA-144">USA-144</a></li> <li><a href="/wiki/Oceansat-1" title="Oceansat-1">Oceansat-1</a>, <a href="/wiki/Kitsat-3" class="mw-redirect" title="Kitsat-3">Kitsat-3</a>, <a href="/wiki/DLR-Tubsat" title="DLR-Tubsat">DLR-Tubsat</a></li> <li><u><a href="/wiki/STS-96" title="STS-96">STS-96</a></u> (<a href="/w/index.php?title=Starshine_1&action=edit&redlink=1" class="new" title="Starshine 1 (page does not exist)">Starshine 1</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">June</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=Globalstar_25&action=edit&redlink=1" class="new" title="Globalstar 25 (page does not exist)">Globalstar 25</a>, <a href="/w/index.php?title=Globalstar_47&action=edit&redlink=1" class="new" title="Globalstar 47 (page does not exist)">Globalstar 47</a>, <a href="/w/index.php?title=Globalstar_49&action=edit&redlink=1" class="new" title="Globalstar 49 (page does not exist)">Globalstar 49</a>, <a href="/w/index.php?title=Globalstar_52&action=edit&redlink=1" class="new" title="Globalstar 52 (page does not exist)">Globalstar 52</a></li> <li><a href="/w/index.php?title=Iridium_14A&action=edit&redlink=1" class="new" title="Iridium 14A (page does not exist)">Iridium 14A</a>, <a href="/w/index.php?title=Iridium_21A&action=edit&redlink=1" class="new" title="Iridium 21A (page does not exist)">Iridium 21A</a></li> <li><a href="/wiki/Astra_1H" title="Astra 1H">Astra 1H</a></li> <li><a href="/wiki/QuikSCAT" title="QuikSCAT">QuikSCAT</a></li> <li><a href="/wiki/Far_Ultraviolet_Spectroscopic_Explorer" title="Far Ultraviolet Spectroscopic Explorer">FUSE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">July</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/w/index.php?title=Gran%27_No.45&action=edit&redlink=1" class="new" title="Gran' No.45 (page does not exist)">Gran' No.45</a></i></li> <li><a href="/w/index.php?title=Molniya_3-50&action=edit&redlink=1" class="new" title="Molniya 3-50 (page does not exist)">Molniya 3-50</a></li> <li><a href="/w/index.php?title=Globalstar_30&action=edit&redlink=1" class="new" title="Globalstar 30 (page does not exist)">Globalstar 30</a>, <a href="/w/index.php?title=Globalstar_32&action=edit&redlink=1" class="new" title="Globalstar 32 (page does not exist)">Globalstar 32</a>, <a href="/w/index.php?title=Globalstar_35&action=edit&redlink=1" class="new" title="Globalstar 35 (page does not exist)">Globalstar 35</a>, <a href="/w/index.php?title=Globalstar_51&action=edit&redlink=1" class="new" title="Globalstar 51 (page does not exist)">Globalstar 51</a></li> <li><a href="/wiki/Progress_M-42" title="Progress M-42">Progress M-42</a></li> <li><a href="/w/index.php?title=Okean-O_No.1&action=edit&redlink=1" class="new" title="Okean-O No.1 (page does not exist)">Okean-O No.1</a></li> <li><u><a href="/wiki/STS-93" title="STS-93">STS-93</a></u> (<a href="/wiki/Chandra_X-ray_Observatory" title="Chandra X-ray Observatory">Chandra</a>)</li> <li><a href="/w/index.php?title=Globalstar_26&action=edit&redlink=1" class="new" title="Globalstar 26 (page does not exist)">Globalstar 26</a>, <a href="/w/index.php?title=Globalstar_28&action=edit&redlink=1" class="new" title="Globalstar 28 (page does not exist)">Globalstar 28</a>, <a href="/w/index.php?title=Globalstar_43&action=edit&redlink=1" class="new" title="Globalstar 43 (page does not exist)">Globalstar 43</a>, <a href="/w/index.php?title=Globalstar_48&action=edit&redlink=1" class="new" title="Globalstar 48 (page does not exist)">Globalstar 48</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">August</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/Telkom_1" class="mw-redirect" title="Telkom 1">Telkom 1</a>, <a href="/w/index.php?title=Globalstar_24&action=edit&redlink=1" class="new" title="Globalstar 24 (page does not exist)">Globalstar 24</a>, <a href="/w/index.php?title=Globalstar_27&action=edit&redlink=1" class="new" title="Globalstar 27 (page does not exist)">Globalstar 27</a>, <a href="/w/index.php?title=Globalstar_53&action=edit&redlink=1" class="new" title="Globalstar 53 (page does not exist)">Globalstar 53</a>, <a href="/w/index.php?title=Globalstar_54&action=edit&redlink=1" class="new" title="Globalstar 54 (page does not exist)">Globalstar 54</a></li> <li><a href="/w/index.php?title=Kosmos_2365&action=edit&redlink=1" class="new" title="Kosmos 2365 (page does not exist)">Kosmos 2365</a></li> <li><a href="/w/index.php?title=Kosmos_2366&action=edit&redlink=1" class="new" title="Kosmos 2366 (page does not exist)">Kosmos 2366</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">September</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/Koreasat_3" class="mw-redirect" title="Koreasat 3">Koreasat 3</a></li> <li><a href="/wiki/Yamal-101" class="mw-redirect" title="Yamal-101">Yamal-101</a>, <a href="/wiki/Yamal-102" title="Yamal-102">Yamal-102</a></li> <li><a href="/w/index.php?title=Foton_12&action=edit&redlink=1" class="new" title="Foton 12 (page does not exist)">Foton 12</a></li> <li><a href="/w/index.php?title=Globalstar_33&action=edit&redlink=1" class="new" title="Globalstar 33 (page does not exist)">Globalstar 33</a>, <a href="/w/index.php?title=Globalstar_50&action=edit&redlink=1" class="new" title="Globalstar 50 (page does not exist)">Globalstar 50</a>, <a href="/w/index.php?title=Globalstar_55&action=edit&redlink=1" class="new" title="Globalstar 55 (page does not exist)">Globalstar 55</a>, <a href="/w/index.php?title=Globalstar_58&action=edit&redlink=1" class="new" title="Globalstar 58 (page does not exist)">Globalstar 58</a></li> <li><a href="/wiki/EchoStar_V" title="EchoStar V">EchoStar V</a></li> <li><a href="/w/index.php?title=Ikonos_2&action=edit&redlink=1" class="new" title="Ikonos 2 (page does not exist)">Ikonos 2</a></li> <li><a href="/wiki/Galaxy_27" title="Galaxy 27">Telstar 7</a></li> <li><a href="/w/index.php?title=LMI-1&action=edit&redlink=1" class="new" title="LMI-1 (page does not exist)">LMI-1</a></li> <li><a href="/w/index.php?title=Resurs_F-1M&action=edit&redlink=1" class="new" title="Resurs F-1M (page does not exist)">Resurs F-1M</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">October</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/USA-145" title="USA-145">USA-145</a></li> <li><a href="/w/index.php?title=DirecTV-1R&action=edit&redlink=1" class="new" title="DirecTV-1R (page does not exist)">DirecTV-1R</a></li> <li><a href="/wiki/CBERS-1" title="CBERS-1">CBERS-1</a>, <a href="/wiki/SACI-1" title="SACI-1">SACI-1</a></li> <li><a href="/w/index.php?title=Globalstar_31&action=edit&redlink=1" class="new" title="Globalstar 31 (page does not exist)">Globalstar 31</a>, <a href="/w/index.php?title=Globalstar_56&action=edit&redlink=1" class="new" title="Globalstar 56 (page does not exist)">Globalstar 56</a>, <a href="/w/index.php?title=Globalstar_57&action=edit&redlink=1" class="new" title="Globalstar 57 (page does not exist)">Globalstar 57</a>, <a href="/w/index.php?title=Globalstar_59&action=edit&redlink=1" class="new" title="Globalstar 59 (page does not exist)">Globalstar 59</a></li> <li><a href="/wiki/Telstar_12" title="Telstar 12">Orion 2</a></li> <li><i><a href="/wiki/Ekspress_A1" class="mw-redirect" title="Ekspress A1">Ekspress A1</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">November</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/AMC-4" title="AMC-4">GE-4</a></li> <li><i><a href="/wiki/MTSAT-1" class="mw-redirect" title="MTSAT-1">MTSAT-1</a></i></li> <li><a href="/wiki/Shenzhou_1" title="Shenzhou 1">Shenzhou 1</a></li> <li><a href="/w/index.php?title=Globalstar_29&action=edit&redlink=1" class="new" title="Globalstar 29 (page does not exist)">Globalstar 29</a>, <a href="/w/index.php?title=Globalstar_34&action=edit&redlink=1" class="new" title="Globalstar 34 (page does not exist)">Globalstar 34</a>, <a href="/w/index.php?title=Globalstar_39&action=edit&redlink=1" class="new" title="Globalstar 39 (page does not exist)">Globalstar 39</a>, <a href="/w/index.php?title=Globalstar_61&action=edit&redlink=1" class="new" title="Globalstar 61 (page does not exist)">Globalstar 61</a></li> <li><a href="/w/index.php?title=USA-146&action=edit&redlink=1" class="new" title="USA-146 (page does not exist)">USA-146</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">December</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/H%C3%A9lios_1B" title="Hélios 1B">Hélios 1B</a>, <a href="/wiki/Cl%C3%A9mentine_(satellite)" title="Clémentine (satellite)">Clémentine</a></li> <li><a href="/w/index.php?title=Orbcomm_FM30&action=edit&redlink=1" class="new" title="Orbcomm FM30 (page does not exist)">Orbcomm FM30</a>, <a href="/w/index.php?title=Orbcomm_FM31&action=edit&redlink=1" class="new" title="Orbcomm FM31 (page does not exist)">Orbcomm FM31</a>, <a href="/w/index.php?title=Orbcomm_FM32&action=edit&redlink=1" class="new" title="Orbcomm FM32 (page does not exist)">Orbcomm FM32</a>, <a href="/w/index.php?title=Orbcomm_FM33&action=edit&redlink=1" class="new" title="Orbcomm FM33 (page does not exist)">Orbcomm FM33</a>, <a href="/w/index.php?title=Orbcomm_FM34&action=edit&redlink=1" class="new" title="Orbcomm FM34 (page does not exist)">Orbcomm FM34</a>, <a href="/w/index.php?title=Orbcomm_FM35&action=edit&redlink=1" class="new" title="Orbcomm FM35 (page does not exist)">Orbcomm FM35</a>, <a href="/w/index.php?title=Orbcomm_FM36&action=edit&redlink=1" class="new" title="Orbcomm FM36 (page does not exist)">Orbcomm FM36</a></li> <li><a href="/wiki/XMM-Newton" title="XMM-Newton">XMM-Newton</a></li> <li>† <a href="/wiki/VLS-1_V02" title="VLS-1 V02">VLS-1 V02</a> (<a href="/wiki/SACI-2" title="SACI-2">SACI-2</a>)</li> <li><a href="/w/index.php?title=USA-147&action=edit&redlink=1" class="new" title="USA-147 (page does not exist)">USA-147</a></li> <li><a href="/wiki/Terra_(satellite)" title="Terra (satellite)">Terra</a></li> <li><u><a href="/wiki/STS-103" title="STS-103">STS-103</a></u></li> <li><a href="/wiki/Arirang-1" class="mw-redirect" title="Arirang-1">Arirang-1</a>, <a href="/wiki/ACRIMSAT" title="ACRIMSAT">ACRIMSAT</a>, <a href="/wiki/Celestis" title="Celestis">Millennial</a></li> <li><a href="/wiki/Galaxy_11" title="Galaxy 11">Galaxy 11</a></li> <li><a href="/w/index.php?title=Kosmos_2367&action=edit&redlink=1" class="new" title="Kosmos 2367 (page does not exist)">Kosmos 2367</a></li> <li><a href="/wiki/Kosmos_2368" title="Kosmos 2368">Kosmos 2368</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).<br /><u>Crewed flights</u> are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).</div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" 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=Landsat_7&oldid=1242303263">https://en.wikipedia.org/w/index.php?title=Landsat_7&oldid=1242303263</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:Spacecraft_launched_in_1999" title="Category:Spacecraft launched in 1999">Spacecraft launched in 1999</a></li><li><a href="/wiki/Category:Spacecraft_launched_by_Delta_II_rockets" title="Category:Spacecraft launched by Delta II rockets">Spacecraft launched by Delta II rockets</a></li><li><a href="/wiki/Category:Landsat_program" title="Category:Landsat program">Landsat program</a></li><li><a href="/wiki/Category:Earth_observation_satellites_of_the_United_States" title="Category:Earth observation satellites of the United States">Earth observation satellites of the United States</a></li><li><a href="/wiki/Category:NASA_satellites_orbiting_Earth" title="Category:NASA satellites orbiting Earth">NASA satellites orbiting Earth</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Source_attribution" title="Category:Source attribution">Source attribution</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Use_American_English_from_January_2014" title="Category:Use American English from January 2014">Use American English from January 2014</a></li><li><a href="/wiki/Category:All_Wikipedia_articles_written_in_American_English" title="Category:All Wikipedia articles written in American English">All Wikipedia articles written in American English</a></li><li><a href="/wiki/Category:Use_dmy_dates_from_June_2020" title="Category:Use dmy dates from June 2020">Use dmy dates from June 2020</a></li><li><a href="/wiki/Category:Webarchive_template_wayback_links" title="Category:Webarchive template wayback links">Webarchive template wayback links</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 26 August 2024, at 03:01<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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