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Gigapan | Lunar Reconnaissance Orbiter Camera
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</div> </div> </nav> <main class="container flex-shrink-0" role="main"> <header> <h1>LROC Northern Polar Mosaic</h1> </header> <section> <div id="zoomifyContainer" class="position-relative"> <div id="gigapanZoomify" class="zoomify" data-zoomify='{"gigapanTileUrl": "/data/support/lnpm_v2/"}'></div> <div id="zoomifyCaption" class="zoomify-caption"></div> </div> <div id="zoomifyLocations" class="zoomify-locations"></div> <div class="p-col-3 mt-5"> <p>On 18 June 2009, NASA launched the Lunar Reconnaissance Orbiter (LRO) to map the surface of the Moon and collect measurements of potential future landing sites as well as key science targets. After two and a half years in a near-circular polar orbit, LRO entered an elliptical polar orbit on 11 December 2011 with a periapsis (point where the LRO is closest to the surface) near the south pole, and the apoapsis (point where LRO is furthest from the surface) near the north pole.</p> <p>The increased altitude over the northern hemisphere enables the two Narrow Angle Cameras (NACs) and Wide Angle Camera (WAC) to capture more terrain in each image acquired in the northern hemisphere. As a result, the Lunar Reconnaissance Orbiter Camera (LROC) archive now contains complete coverage from 60°N to the north pole (except of course for areas of permanent shadow) with a pixel scale of 2 meters.</p> <p>The LROC team assembled 10,581 NAC images, collected over 4 years, into a spectacular northern polar mosaic. The LROC Northern Polar Mosaic (LNPM) is likely one of the world鈥檚 largest image mosaics in existence, or at least publicly available on the web, with over 680 gigapixels of valid image data covering a region of the Moon (2.54 million km², 0.98 million miles²) slightly larger than the combined area of Alaska (1.72 million km²) and Texas (0.70 million km²) -- at a resolution of 2 meters per pixel!</p> <img class="display-block m-auto px-0 py-3 mw-100" src="/assets/gigapanOnUS-53f1f5a43371fcf5cf5ec4850dc52ceda97aa8bdaa430cb9ad1c9c9ae7e353ca.png" /> <p>To create the mosaic, each LROC NAC image was map projected on a 30 m/pixel Lunar Orbiter Laser Altimeter (LOLA) derived Digital Terrain Model (DTM) using a software package called Integrated Software for Imagers and Spectrometers (ISIS). A polar stereographic projection was used in order to limit mapping distortions when creating the 2-D map. In addition, the LROC team used improved ephemeris provided by the LOLA and GRAIL teams and an improved camera pointing model to enable accurate projection of each image in the mosaic to within 20 meters.</p> <p>For more information about this product, check out the <a href="//lroc.sese.asu.edu/posts/738">featured image.</a></p> <p>LNPM by the numbers:</p> <ul class="ul-numeric"> <li>Square image: 931,070 pixels across and down</li> <li>Total pixels: 866,891,344,900 (867 billion)</li> <li>Pixels with image data: 680,808,991,627 (681 billion)</li> <li>Total NAC images: 10,581</li> <li>Compressed mosaic size: 950 Gigabytes</li> </ul> </div> </section> </main> <footer class="footer mt-auto"> <div class="container"> <div class="row"> <div class="col-md-4 pb-5 py-md-2"> <span class="footer-brand mb-2"><img class="footer-img" src="/assets/LROC_patch_alpha-bcddde05a14e141c980aa2f2525ba78b826a15843a289bf9fa543709e488e018.png" />LROC</span> <p> Lunar Reconnaissance Orbiter Camera<br> Science Operations Center<br> Phoenix, Arizona </p> </div> <div class="col-md-4 pb-5 py-md-2"> <h4>Moon friends</h4> <a target="_blank" class="d-block" href="https://moon.nasa.gov/">NASA Moon</a> <a target="_blank" class="d-block" href="https://lunar.gsfc.nasa.gov/">Lunar Reconnaissance Orbiter</a> <a target="_blank" class="d-block" href="https://www.shadowcam.asu.edu/">ShadowCam</a> <a target="_blank" class="d-block" href="https://www.intuitivemachines.com/">Intuitive Machines</a> <a target="_blank" class="d-block" href="https://sese.asu.edu/">ASU School of Earth and Space Exploration</a> <a target="_blank" class="d-block" href="https://ser.sese.asu.edu/">Space Exploration Resources</a> <a target="_blank" class="d-block" href="https://apollo.sese.asu.edu/">Apollo Image Archive</a> <a target="_blank" class="d-block" href="https://tothemoon.ser.asu.edu">March to the Moon Image Archive</a> </div> <div class="col-md-4 pb-5 py-md-2"> <h4>Connect with us</h4> <a class="d-block" target="_blank" href="https://sese.asu.edu/community-engagement/events">ASU School of Earth and Space Exploration</a> <a class="d-block" href="/visit/exhibits">LROC Lunar Exhibits</a> <a class="d-block" href="/news_tags/Events">LROC Affiliated Events</a> <a class="d-block" href="/contact">Contact Us</a> </div> </div> <hr class="mx-3 mx-md-0 my-5"> <div class="row"> <p class="col pt-3 pt-md-0 text-gray-dark">©2025 NASA/GSFC/LROC. 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