SkyMapper Southern Sky Survey

<!DOCTYPE html> <head> <meta charset='utf-8'> <title>SkyMapper Southern Sky Survey</title>  <link rel="stylesheet" type="text/css" href='/static/sm_asvo/fonts.css' /> <link rel='stylesheet' type='text/css' href='/static/sm_asvo/master.css' /> <script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>  <script type='text/javascript' src='/static/sm_asvo/master.js'></script> <script type='text/javascript' src="https://cdn.rawgit.com/leafo/sticky-kit/v1.1.2/jquery.sticky-kit.min.js"></script> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" /> <link rel="icon" type="image/ico" href='/static/sm_asvo/img/favicon.ico' />  <meta property="og:title" content="SkyMapper Southern Sky Survey" /> <meta property="og:type" content="website" /> <meta property="og:url" content="https://skymapper.anu.edu.au/surveys/" /> <meta property="og:image" content="https://skymapper.anu.edu.au/static/sm_asvo/img/skymapper_logo1-200x198_3.jpg" /> <meta property="og:description" content="Access to and information about the SkyMapper Southern Sky Survey" /> <meta property="fb:app_id" content="968590116638493" />  <style> .axis { font-size: 12pt; font-family: sans-serif; stroke-width: 0.75px; } .axis line, .axis path { fill: none; stroke: black; shape-rendering: crispEdges; } .separator { stroke: grey; stroke-width: 0.5px; stroke-dasharray: 10,10; } .totalmedian { stroke: black; stroke-width: 1px; stroke-dasharray: 15,15; } .bxp { fill: none; stroke-width: 1.5px; } .bxp_short { } .bxp_survey { stroke: black; color: black; } .bxp_month{ stroke: limegreen; color: limegreen; } .bxp_week { stroke: blue; color: blue; } .bxp_24-hour { stroke: orange; color: orange; } .leg_survey { color: black; fill: black; } .leg_month { color: limegreen; fill: limegreen; } .leg_week { color: blue; fill: blue; } .leg_24-hour { color: orange; fill: orange; } </style>     <script> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','https://www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-100583569-1', 'auto'); ga('send', 'pageview'); $( document ).ready(function () { $('#linkbar').stick_in_parent(); }) </script> </head> <body> <div id='wrapper'> <div id="userwarn"><a href="/accounts/login/?next=/surveys/">Log-in</a> to SkyMapper</div> <div id='banner'>  <h1><a href='/'><strong>SkyMapper</strong> | Southern Sky Survey</a></h1> <span class='vahelper'></span><a href='https://www.anu.edu.au/'><img src='/static/sm_asvo/img/2x_anu_logo_small_over.png' id='anu' /></a>  </div>  <ul id='linkbar'> <li class='menuitem mi-icon'><a href='/'><i class="material-icons md-light"> </i>Home</a></li> <li class='menuitem mi-icon'><a href='/about-skymapper/'><i class="material-icons md-light"> </i>About SkyMapper</a></li> <li class='menuitem mi-icon'><a href='/purchase-time/' style="background-color: darkred;"><i class="material-icons md-light">shopping_cart </i>Purchase Time</a></li> <li class='menuitem mi-icon'><a href='/how-to-cite/'><i class="material-icons md-light">book </i>Cite & Acknowledge</a></li> <li class='menuitem mi-icon'><a href='/news/'><i class="material-icons md-light">keyboard </i>Latest News</a></li> <li class='menuitem mi-icon-inactive'><a><i class="material-icons md-light"> </i>Survey Information<span style='float:right;padding-right:5px;'>————</span></a></li> <li class='menuitem'><a href="/data-release/">Data Releases</a></li> <li class='menuitem'><a href='/surveys/'>Survey Progress</a></li> <li class='menuitem'><a href='/publications/'>View Publications</a></li> <li class='menuitem'><a href='/publications/statistics/'>Publication Statistics</a></li> <li class='menuitem mi-icon-inactive'><a><i class="material-icons md-light"> </i>Data Access<span style='float:right;padding-right:5px;'>————</span></a></li> <li class='menuitem'><a href='/how-to-access/'>How To Access</a></li> <li class='menuitem'><a href='/object-viewer/'>Object Viewer</a></li> <li class='menuitem'><a href='/cone-search/'>Cone Search</a></li> <li class='menuitem'><a href='/image-cutout/'>Image Cutouts</a></li> <li class='menuitem'><a href='/tap/'>Full Catalogue Search</a></li> <li class='menuitem'><a href='/table-browser/'>Table Metadata</a></li> <li class='menuitem mi-icon'><a href='/sky-viewer/'><i class="material-icons md-light"></i> Sky Viewer</span></a></li>   <li class='menuitem mi-icon'><a href='/skymapper-board/'><i class="material-icons md-light">work </i>SkyMapper Board</a></li> <li class='menuitem mi-icon'><a href='/media-gallery/'><i class="material-icons md-light"> </i>Media Gallery</a></li> <li class='menuitem mi-icon'><a href='/forum/'><i class="material-icons md-light"> </i>User Forum</a></li> </ul> <ul id='linkmenu'> <li id='menubutton'><a href='#'>⇶ Menu</a></li> <li class='menuitem'><i class="material-icons"></i><a href='/'>Home</a></li> <li class='menuitem'><i class="material-icons"></i><a href='/about-skymapper/'>About SkyMapper</a></li> <li class='menuitem'><i class="material-icons"></i><a href='/purchase-time/' style="background-color: darkred;">Purchase Time</a></li> <li class='menuitem'><a href='/how-to-cite/'>Cite & Acknowledge</a></li> <li class='menuitem'><a href='/news/'>Latest News</a></li> <li class='menuitem'><a href='/data-release/'>Data Releases</a></li> <li class='menuitem'><a href='/surveys/'>Survey Progress</a></li> <li class='menuitem'><a href='/publications/'>View Publications</a></li> <li class='menuitem'><a href='/publications/statistics/'>Publication Statistics</a></li> <li class='menuitem'><a href='/how-to-access/'>How to Access</a></li> <li class='menuitem'><a href='/object-viewer/'>Object Viewer</a></li> <li class='menuitem'><a href='/cone-search/'>Cone Search</a></li> <li class='menuitem'><a href='/image-cutout/'>Image Cutouts</a></li> <li class='menuitem'><a href='/tap/'>Full Catalogue Search</a></li> <li class='menuitem'><a href='/table-browser/'>Table Metadata</a></li> <li class='menuitem'><a href='/sky-viewer/'>Sky Viewer</a></li>  <li class='menuitem'><a href='/skymapper-board/'>SkyMapper Board</a></li> <li class='menuitem'><a href='/media-gallery/'>Media Gallery</a></li> <li class='menuitem'><a href='/forum/'>User Forum</a></li> </ul>  <div id='content'> <p></p> <h1>SkyMapper Southern Sky Survey (SMSS)</h1> <p><a href='#progress'>Survey Progress</a> | <a href='#seeing'>Seeing Statistics</a></p> <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script> <p class="emph-large">Approximately 75% of SkyMapper's observing time will be initially dedicated to the Southern Sky Survey, a comprehensive digital survey of the entire southern sky.</p> <div class='half text-half'> <h2><a style="font-weight: normal" href="/surveys/skymapper-shallow-survey/">SkyMapper Shallow Survey</a></h2> <p>The <em>Shallow Survey </em>was undertaken mostly in the first year of operations and continues during full moon periods. Each visit measures objects from 9 to 17 mag in all six bands.</p> </div> <div class='half text-half'> <h2><a style="font-weight: normal" href="/surveys/skymapper-southern-sky-survey/">SkyMapper Main Survey</a></h2> <p>Most of SkyMapper's observing time is now dedicated to the <em>Main Survey. </em>This has an expected depth (in AB mags) for a signal-to-noise ratio of 5 in 2.5" seeing, of:</p> <div> <table class="bordered"> <thead> <tr> <th scope="row"> </th> <th scope="col">u</th> <th scope="col">v</th> <th scope="col">g</th> <th scope="col">r</th> <th scope="col">i</th> <th scope="col">z</th> </tr> </thead> <tbody> <tr> <th scope="row">Single epoch</th> <td>19.5</td> <td>19.5</td> <td>21.0</td> <td>21.0</td> <td>20.0</td> <td>19.0</td> </tr> <tr> <th scope="row">Saturation</th> <td>10.0</td> <td>10.5</td> <td>13.0</td> <td>13.0</td> <td>11.0</td> <td>10.5</td> </tr> <tr> <th scope="row">Exp. time (s)</th> <td>100</td> <td>100</td> <td>100</td> <td>100</td> <td>100</td> <td>100</td> </tr> <tr> <th scope="row">Final coadded depth</th> <td>20.5</td> <td>20.5</td> <td>21.7</td> <td>21.7</td> <td>20.7</td> <td>19.7</td> </tr> </tbody> </table> </div> <div> </div> <div>The survey scheduler aims to finish a field mostly within one moon period. A first visit in dark conditions establishes a colour sequence with all six bands observed in the space of 20 minutes. Further visits in subsequent nights under dark or grey sky conditions add exposure pairs in g- and r-band, while in grey or bright conditions pairs in <em>i</em>- and <em>z</em>-band are added. A second colour sequence in dark conditions finishes the set. Further pairs in <em>i</em>- and <em>z</em>-band are also observed during astronomical twilight. These twilight observations may be separated by many months from the night-time visits.</div> </div> <div class='clearboth'></div> <hr class='style-three' /> <a name='progress'></a><h2>Survey Progress<a href="#" class="back-to-top">^ Back to top</a></h2> <div class='half' id='skymapper-shallow-survey_progress'> <h3><a style="font-weight: normal" href="/surveys/skymapper-shallow-survey/">SkyMapper Shallow Survey</a></h3> <p id='skymapper-shallow-survey_p_comp_date' class='hint'></p> <script src='/static/sm_asvo/js/sm_completion_draw.js' charset='utf-8'></script> <script type='text/javascript'> jsonLoad = d3.json('/media/sm_completion_2.json', function(error, json) { if (error) return console.warn(error); // console.log(jsonData); // extractDataConsts(jsonData); draw_sm_completion_chart( json.fiveSecondSurvey, '#skymapper-shallow-survey_progress'); $( document ).ready( function () { $('#skymapper-shallow-survey_p_comp_date').text('Data updated at '+json.lastUpdated+'.'); }) }); </script> </div> <div class='half' id='skymapper-main-survey_progress'> <h3><a style="font-weight: normal" href="/surveys/skymapper-southern-sky-survey/">SkyMapper Main Survey</a></h3> <p id='skymapper-main-survey_p_comp_date' class='hint'></p> <script src='/static/sm_asvo/js/sm_completion_draw.js' charset='utf-8'></script> <script type='text/javascript'> jsonLoad = d3.json('/media/sm_completion_2_BuiMVS4.json', function(error, json) { if (error) return console.warn(error); // console.log(jsonData); // extractDataConsts(jsonData); draw_sm_completion_chart( json.mainSurvey, '#skymapper-main-survey_progress'); $( document ).ready( function () { $('#skymapper-main-survey_p_comp_date').text('Data updated at '+json.lastUpdated+'.'); }) }); </script> </div> <div class='clearboth'></div> <hr class='style-three' /> <a name='seeing'></a><h2>Seeing Statistics<a href="#" class="back-to-top">^ Back to top</a></h2> <div class='half' id='skymapper-shallow-survey_fwhm'> <h3><a style="font-weight: normal" href="/surveys/skymapper-shallow-survey/">SkyMapper Shallow Survey</a></h3> <p id='skymapper-shallow-survey_p_fwhm_date' class='hint'></p> <script src="/static/sm_asvo/js/sm_fwhm_draw_2.js"></script> <script type='text/javascript'> var svgs_fwhm; jsonLoad = d3.json('/media/sm_fwhm.json', function(error, json) { if (error) return console.warn(error); // console.log(jsonData); // extractDataConsts(jsonData); drawSMFWHM(json, "#skymapper-shallow-survey_fwhm", 1); $( document ).ready( function () { $('#skymapper-shallow-survey_p_fwhm_date').text('Data updated at '+json.lastUpdated+'.'); }) }); </script></div> <div class='half' id='skymapper-main-survey_fwhm'> <h3><a style="font-weight: normal" href="/surveys/skymapper-southern-sky-survey/">SkyMapper Main Survey</a></h3> <p id='skymapper-main-survey_p_fwhm_date' class='hint'></p> <script src="/static/sm_asvo/js/sm_fwhm_draw_2.js"></script> <script type='text/javascript'> var svgs_fwhm; jsonLoad = d3.json('/media/sm_fwhm_3gbl27D.json', function(error, json) { if (error) return console.warn(error); // console.log(jsonData); // extractDataConsts(jsonData); drawSMFWHM(json, "#skymapper-main-survey_fwhm", 0); $( document ).ready( function () { $('#skymapper-main-survey_p_fwhm_date').text('Data updated at '+json.lastUpdated+'.'); }) }); </script></div> <div class='clearboth'></div> </div> <div class="clearboth"></div> <div id='footer'><p> The use of all SkyMapper data is governed by the <a href='/policies/'>policies</a> outlined on this website. Please review them prior to downloading or publishing data.<br/> Copyright © 2024 <a href='https://rsaa.anu.edu.au/'>Research School of Astronomy and Astrophysics</a>, <a href='https://www.anu.edu.au/'>The Australian National University</a>. Development funded by <a href='http://astronomyaustralia.org.au/'>Astronomy Australia Ltd.</a> as part of the <a href='http://www.asvo.org.au/'>All-Sky Virtual Observatory</a> and <a href='https://odc.org.au/'>Optical Data Centre</a>. Hosted by <a href='http://nci.org.au/'>National Computational Infrastructure</a>.<br /> Powered by <a href='https://www.djangoproject.com' target='_blank'>Django</a> and <a href="https://www.cherrypy.org" target="_blank">CherryPy</a>.</p></div> </div> </body> </html>

CINXE.COM

SkyMapper Southern Sky Survey