<h1>ALERTING TOOLS</h1>

<!DOCTYPE html> <HEAD> <TITLE><h1>ALERTING TOOLS</h1> </TITLE> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta content="text/html; charset=UTF-8" http-equiv="content-type"> <link rel="stylesheet" href="/css/style.css" type="text/css"> <script src="/js/jquery-1.11.js"></script> <meta property="og:url" content="https://www.n2yo.com//info/?a=22"/> <meta property="og:title" content="<h1>ALERTING TOOLS</h1> "/> <meta property="og:image" content=""/> <meta property="og:site_name" content="N2YO.com - Real Time Satellite Tracking and Predictions"/> <meta property="og:type" content="website"/> <meta property="og:description" content=" Space Station sighting predictions by."/> <META name="keywords" content="satellite tracking, passes, prediction, satellite database"> <META name="description" content=" Space Station sighting predictions by."> </HEAD> <body> <script type='text/javascript' src="/js/passes.js"></script> <script> var startPass = null; var endPass = null; var timer; var issid = 25544; var lat = 1.289987; var lng = 103.850281; go(); </script>   <script async src="https://www.googletagmanager.com/gtag/js?id=G-QZGWPSKPV5"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-QZGWPSKPV5'); </script> <script type='text/javascript'> googletag.cmd.push(function() { googletag.defineSlot('/31043081/n2yo-header', [728, 90], 'div-gpt-ad-1438712706402-0').addService(googletag.pubads()); googletag.pubads().enableSingleRequest(); googletag.enableServices(); }); </script> <div id="headercontainer" style="overflow: auto; zoom: 1"> <table style="width:100%;font-size:14px"> <tr> <td> <div id="logo"> <a href="/"><img src="/img/n2yologo.png" width="200" height="39" border="0" alt="n2yo.com"/></a> <div class="fb-like" data-href="https://www.facebook.com/n2yodotcom" data-send="false" data-layout="button_count" data-width="100" data-show-faces="false" data-font="tahoma"></div> <g:plusone></g:plusone> </div> <span id = "headermessage" style="background-color:#ffffca;border:1px dashed #cacaba;width:300px;"> Tracking <b><span style="color:#d50000">30375</span></b> objects as of 8-Apr-2025 <br/><a href="/space-station/"> HD Live streaming from Space Station</a> <br/> <script src="/js/satellite-js/dist/satellite.min.js"></script> <link rel="stylesheet" href="/css/odometer-theme-car.css" /> <script src="/js/odometer.js"></script> <style> .odometer { font-size: 16px; } </style> <span id="up"><div id="odometer" class="odometer"></div> objects crossing your sky now</up> <script> var items; if (!( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) )) { $.get("/inc/all.php", function(data) { items = data.split('\n'); up(); }); setInterval('up()', 5000); } else { document.getElementById("up").style.display='none'; } function up() { var cnt = 0; for(var i=0;i<items.length;i++) { var line = items[i]; if(line[0]=="1") { var satid = parseInt(line.substr(2,5)); var line1 = items[i]; var line2 = items[i+1]; var satrec = satellite.twoline2satrec(line1, line2); var now = new Date(); var positionAndVelocity = satellite.propagate( satrec, now.getUTCFullYear(), now.getUTCMonth() + 1, now.getUTCDate(), now.getUTCHours(), now.getUTCMinutes(), now.getUTCSeconds() ); var positionEci = positionAndVelocity.position, velocityEci = positionAndVelocity.velocity; var gmst = satellite.gstimeFromDate( now.getUTCFullYear(), now.getUTCMonth() + 1, now.getUTCDate(), now.getUTCHours(), now.getUTCMinutes(), now.getUTCSeconds() ); var deg2rad = Math.PI/180; var observerGd = { longitude: 103.850281 * deg2rad, latitude: 1.289987 * deg2rad, height: 0 }; try { var positionEcf = satellite.eciToEcf(positionEci, gmst); } catch (err) { //console.log("Error: " + err); } var lookAngles = satellite.ecfToLookAngles(observerGd, positionEcf); var dopplerFactor = 0; var azimuth = lookAngles.azimuth, elevation = lookAngles.elevation, rangeSat = lookAngles.rangeSat; azimuth1 = azimuth*180/Math.PI; elevation1 = elevation*180/Math.PI; if(elevation1>10) { cnt++; } } } odometer.innerHTML = cnt; } </script> </span> </td> <td valign="top" align="center" width="200">    <b><span id="countdown" style="display:block"></span></b> </td> <td align="right" valign="top"> <form action="/database/#results" method="GET"> <div id="searchbox" align="right"> <br/> <INPUT TYPE="text" NAME="q" ID="srcsat" style="font-size: 14px; background-color: #FFFFFF;width:140px" size="12" value="Find a satellite..." onFocus='document.getElementById("srcsat").value="";'> <INPUT TYPE="submit" value="Search" style="font-size: 12px; background-color:#D8D8D8; color:#000000; margin-right: 6px;"> <div align="right"> <a href="https://www.facebook.com/n2yodotcom">N2YO.com on Facebook</a>    <A HREF="/database/">Advanced</A>   </div> </form> </div> <script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script> </tr> </td> </table> </div> <div id="admobiheader">  </div> <div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3&appId=372896566168367"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));</script>   </div> <link href="/ddmenu/ddmenu.css" rel="stylesheet" type="text/css" /> <script src="/ddmenu/ddmenu.js" type="text/javascript"></script>  <nav id="ddmenu"> <div class="menu-icon"></div> <ul> <li class="no-sub"><a class="top-heading" href="https://www.n2yo.com/">Home</a></li> <li> <span class="top-heading"><a class="top-heading" href="/satellites/?c=most-popular">Most tracked</a></span> <i class="caret"></i> <div class="dropdown"> <div class="dd-inner"> <div class="column"> <A HREF="/satellite/?s=25544">SPACE STATION</A> <A HREF="/satellite/?s=36516">SES 1</A> <A HREF="/satellite/?s=33591">NOAA 19</A> <A HREF="/satellite/?s=29155">GOES 13</A> <A HREF="/satellite/?s=25338">NOAA 15</A> <A HREF="/satellite/?s=28654">NOAA 18</A> <A HREF="/satellite/?s=25994">TERRA</A> <A HREF="/satellite/?s=27424">AQUA</A> <A HREF="/satellite/?s=38771">METOP-B</A> <A HREF="/satellite/?s=37849">SUOMI NPP</A> <A HREF="/satellite/?s=36411">GOES 15</A> <A HREF="/satellite/?s=40967">FOX-1A (AO-85)</A> <A HREF="/satellite/?s=27607">SAUDISAT 1C</A> <A HREF="/satellite/?s=41332">KMS-4</A> <A HREF="/satellite/?s=37820">TIANGONG 1</A> <A HREF="/satellite/?s=40069">METEOR M2</A> <A HREF="/satellite/?s=25657">ASIASAT 3S</A> <A HREF="/satellite/?s=36032">NSS 12</A> <A HREF="/satellite/?s=31135">AGILE</A> <A HREF="/satellite/?s=40147">MEASAT 3B</A> <a href="/satellites/?c=most-popular">MORE...</a> </div> </div> </div> </li> <li> <span class="top-heading"><a class="top-heading" href="/satellites/?c=latest-launches">Just launched</a></span> <i class="caret"></i> <div class="dropdown"> <div class="dd-inner"> <div class="column"> <A HREF="/satellite/?s=99130">ASRTU</A> <A HREF="/satellite/?s=63432">TIANPING-3A02</A> <A HREF="/satellite/?s=63389">STARLINK-33656</A> <A HREF="/satellite/?s=63388">STARLINK-33629</A> <A HREF="/satellite/?s=63387">STARLINK-33533</A> <A HREF="/satellite/?s=63386">STARLINK-33571</A> <A HREF="/satellite/?s=63385">STARLINK-33616</A> <A HREF="/satellite/?s=63384">STARLINK-33658</A> <A HREF="/satellite/?s=63383">STARLINK-33748</A> <A HREF="/satellite/?s=63382">STARLINK-33633</A> <A HREF="/satellite/?s=63381">STARLINK-33643</A> <A HREF="/satellite/?s=63380">STARLINK-33653</A> <A HREF="/satellite/?s=63379">STARLINK-33636</A> <A HREF="/satellite/?s=63378">STARLINK-33640</A> <A HREF="/satellite/?s=63377">STARLINK-33634</A> <A HREF="/satellite/?s=63376">STARLINK-33539</A> <A HREF="/satellite/?s=63375">STARLINK-33621</A> <A HREF="/satellite/?s=63374">STARLINK-33618</A> <A HREF="/satellite/?s=63373">STARLINK-33617</A> <A HREF="/satellite/?s=63372">STARLINK-33614</A> <a href="/satellites/?c=latest-launches">MORE...</a> </div> </div> </div> </li> <li> <span class="top-heading">Satellites on orbit</span> <i class="caret"></i> <div class="dropdown"> <div class="dd-inner"> <div class="column"> <h4><a href="/satellites/">CATEGORIES</a></h4> <a href="/satellites/?c=2">Int'l Space Station</a> <a href="/satellites/?c=54">Chinese Space Station</a> <a href="/satellites/?c=1">Brightest</a> <a href="/satellites/?c=52">Starlink</a> <a href="/satellites/?c=20">GPS Operational</a> <a href="/satellites/?c=21">Glonass Operational</a> <a href="/satellites/?c=22">Galileo</a> <a href="/satellites/?c=35">Beidou</a> <a href="/satellites/?c=30">Military</a> <a href="/satellites/?c=15">Iridium</a> <a href="/satellites/?c=17">Globalstar</a> <a href="/satellites/?c=10">Geostationary</a> <a href="/satellites/?c=26">Space & Earth Science</a> <a href="/satellites/?c=3">Weather</a> <a href="/satellites/?c=18">Amateur radio</a> <a href="/satellites/">MORE CATEGORIES...</a> </div> <div class="column"> <h4><a href="/whats-up/whats-up-now.php">WHAT'S UP?</a></h4> <a href="/passes/amateur-radio.php">Amateur radio sat passes</a> <a href="/whats-up/?c=20">GPS satellites</a> <a href="/whats-up/?c=21">Glonass satellites</a> <a href="/whats-up/?c=35">Beidou satellites</a> <a href="/whats-up/?c=22">Galileo satellites</a> <a href="/whats-up/?c=15">Iridium satellites</a> <a href="/whats-up/?c=17">Globalstar satellites</a>  <br/> <h4><a href="/database/">FIND A SATELLITE</a></h4> <a href="/database/"> SEARCH DATABASE</a> <a href="/browse/"> BROWSE BY LAUNCH DATE</a> <a href="/satellites/"> BROWSE BY CATEGORY</a> <a href="/satellites/?c=&t=country"> BROWSE BY COUNTRY</a> </div> <div class="column"> <h4><a href="/satellites?c=&t=country">OWNERS/COUNTRIES</a></h4> <a href="/satellites?c=US&t=country"><img src='/img/org/us.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> UNITED STATES</a> <a href="/satellites?c=CIS&t=country"><img src='/img/org/cis.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> CIS (FORMER USSR)</a> <a href="/satellites?c=PRC&t=country"><img src='/img/org/prc.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> PEOPLE'S REPUBLIC OF CHINA</a> <a href="/satellites?c=JPN&t=country"><img src='/img/org/jpn.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> JAPAN</a> <a href="/satellites?c=ESA&t=country"><img src='/img/org/esa.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> EUROPEAN SPACE AGENCY</a> <a href="/satellites?c=FR&t=country"><img src='/img/org/fr.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> FRANCE</a> <a href="/satellites?c=IND&t=country"><img src='/img/org/ind.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> INDIA</a> <a href="/satellites?c=UK&t=country"><img src='/img/org/uk.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> UNITED KINGDOM</a> <a href="/satellites?c=CA&t=country"><img src='/img/org/ca.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> CANADA</a> <a href="/satellites?c=GER&t=country"><img src='/img/org/ger.gif' border='0' width='20' height='15' style="vertical-align: text-bottom"> GERMANY</a> <a href="/satellites?c=&t=country"> MORE OWNERS/COUNTRIES...</a> </div> </div> </div> </li> <li> <a class="top-heading" href="/info/?a=22">Alerting tools</a> <i class="caret"></i> <div class="dropdown right-aligned"> <div class="dd-inner"> <div class="column"> <h4>ALERTING TOOLS</h4> <a href="/info/?a=43"><img src="/ddmenu/phone.png" border="0" width="16" style="vertical-align: text-bottom"> SPACE STATION PREDICTIONS BY VOICE</a> <a href="/login/iss-notifications/"><img src="/ddmenu/alert.png" border="0" width="16" style="vertical-align: text-bottom"> SPACE STATION NOTIFICATION TOOL </a> <a href="/info/?a=15"><img src="/ddmenu/email.png" border="0" width="16" style="vertical-align: text-bottom"> ALERTS BY EMAIL AND SMS</a> </div> </div> </li> <li> <span class="top-heading">More stuff</span> <i class="caret"></i> <div class="dropdown right-aligned"> <div class="dd-inner"> <div class="column"> <h4>ADDITIONAL INFO</h4> <a href="/space-station" style="color:red"><b>HD LIVE STREAMING FROM ISS</b></a> <a href="/news/read.php?p=0">SATELLITE NEWS</a> <a href="/about/?a=donation">MAKE A DONATION</a> <a href="https://www.facebook.com/n2yodotcom">N2YO.COM ON FACEBOOK</a> <a href="/about/?a=links">EXTERNAL LINKS</a> <a href="/about/?a=faq">FAQ</a> <a href="/about/?a=feedback">CONTACT/FEEDBACK</a> <a href="/about/?a=privacy">PRIVACY POLICY</a> <a href="/about/?a=terms">TERMS OF USE</a> </div> <div class="column"> <h4>USER PREFERENCES</h4> <a href=https://www.n2yo.com/login/edit/>SIGN IN</a> <a href="https://www.n2yo.com/login/edit/">EDIT/CHANGE YOUR LOCATION</a> <br/> <h4>SITE OWNERS</h4> <a href="/widgets/">WIDGETS FOR YOUR PAGE</a> <a href="/api/">API ACCESS</a> <br/>  </div> </div> </div> </li> <li class="no-sub"><a class="top-heading" href=https://www.n2yo.com/login/edit/>Sign in</a></li> </ul> </nav>  <table style="width:100%"> <tr> <td class="hidecell" style="vertical-align:top;width:160px"> <script id="mNCC" language="javascript"> medianet_width = "160"; medianet_height = "600"; medianet_crid = "515138167"; medianet_versionId = "111299"; (function() { var isSSL = 'https:' == document.location.protocol; var mnSrc = (isSSL ? 'https:' : 'http:') + '//contextual.media.net/nmedianet.js?cid=8CUY6IMG3' + (isSSL ? '&https=1' : ''); document.write('<scr' + 'ipt type="text/javascript" id="mNSC" src="' + mnSrc + '"></scr' + 'ipt>'); })(); </script> </td> <td valign="top"> <h1><h1>ALERTING TOOLS</h1> </h1> <a href="http://www.n2yo.com/passes/dial.php"><img src="../img/generic/g0173119.gif" width="198" height="123" border="0" alt="Space Station sighting predictions by... voice"></a> <a href="http://www.n2yo.com/passes/dial.php"><b>Space Station sighting predictions by... voice</b></a> <dl> <dd>Simply call the toll free number 1-844-N2YO-COM (1-844-629-6266), enter your zip code and learn if the Space Station will be visible in the next 24 hours. This service is available for US telephone subscribers. Regular long distance rates apply. </dl> <br/> <a href="/about/iss-notification-tool.php"><img src="../img/generic/g0173115.gif" width="192" height="117" border="0" alt="The Automated Space Station Notification Tool"></a> <a href="/about/iss-notification-tool.php"><b>The Automated Space Station Notification Tool</b></a> <dl> <dd>The Space Station notification tool provides SMS (texting) and/or email notifications for the best visible Space Station passes above your observing location. </dl> <br/> <a href="/passes/alerts.php"><img src="../img/generic/g0171613.gif" width="183" height="192" border="0" alt="Receive alerts via email or mobile device before any satellite pass"></a> <a href="/passes/alerts.php"><b>Receive alerts via email or mobile device before any satellite pass</b></a> <dl> <dd>Want to be alerted by email or SMS (texting) when your favorite LEO satellite comes over your place? 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ALERTING TOOLS