{"id":54685,"date":"2023-09-27T20:28:20","date_gmt":"2023-09-27T20:28:20","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=54685"},"modified":"2023-09-28T16:39:37","modified_gmt":"2023-09-28T16:39:37","slug":"new-scan-schedule-for-ews-g1-formerly-goes-13","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/54685","title":{"rendered":"New Scan Schedule for EWS-G1 (formerly GOES-13)"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"960\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2023\/09\/image.gif\" alt=\"\" class=\"wp-image-54702\"\/><figcaption class=\"wp-element-caption\">The one visible and four infrared bands of the EWS-G1 from September 27, 2023 at approximately 04:45 UTC.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">New routine schedule<\/h2>\n\n\n\n<p><a href=\"https:\/\/spacenews.com\/noaas-former-satellite-now-providing-weather-data-to-the-u-s-military\/\">EWS-G1<\/a> (<a href=\"https:\/\/media.defense.gov\/2023\/Feb\/14\/2003161820\/-1\/-1\/1\/EWS-G1%20FACTSHEET.PDF\">Electro-optical Infrared Weather System Geostationary<\/a>) is a <a href=\"https:\/\/www.spaceforce.mil\/\">U.S. Space Force<\/a> mission. The imager is now running a different routine scan schedule, as can be seen on the <a href=\"https:\/\/www.ssec.wisc.edu\/\">UW\/SSEC<\/a> <a href=\"https:\/\/www.ssec.wisc.edu\/data\/geo\/#\/animation?satellite=ews-g1\">geo-browser<\/a>. This schedule includes scans of the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2023\/09\/ews-g1_2023270_1415_03_fd.gif\">Indian Ocean<\/a>, the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2023\/09\/ews-g1_2023270_1326_03_fd.gif\">extended Indian Ocean<\/a> and <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2023\/09\/ews-g1_2023270_1345_03_fd.gif\">Full Disks<\/a>. Previously only Full Disk images had been obtained every 30 minutes. An EWS-G1 &#8220;<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/11\/fact_sheet_ews_g1.pdf\">quick-guide<\/a> (pdf).&#8221; EWS-G1 imagery has been available via the UW\/SSEC <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/38928\">since late 2020<\/a>.  The EWS-G1 was formerly <a href=\"https:\/\/www.nesdis.noaa.gov\/\">NOAA<\/a>\u2019s <a href=\"https:\/\/en.wikipedia.org\/wiki\/GOES_13\">GOES-13<\/a>. EWS-G1 has employed the &#8220;XGOHI&#8221; <a href=\"https:\/\/citeseerx.ist.psu.edu\/viewdoc\/download;jsessionid=2281996D9E7FB86776FD000C6E909249?doi=10.1.1.119.3814&amp;rep=rep1&amp;type=pdf\">remapping<\/a> of data before GVAR generation, to handle larger inclination angles. This capability was first employed on <a href=\"https:\/\/journals.ametsoc.org\/view\/journals\/bams\/99\/1\/bams-d-16-0029.1.xml\">GOES-10<\/a> (and then GOES-12) when their images provided special coverage of the Southern Hemisphere for a combined almost 7 years. <\/p>\n\n\n\n<figure class=\"wp-block-video\"><video autoplay controls loop src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2023\/09\/ewsg1-fd-03-g-20232701645-40.mp4\"><\/video><figcaption class=\"wp-element-caption\">An animation of the different scan sectors of the EWS-G1 during part of September 27, 2023. The 6.5 micrometer (&#8220;water vapor&#8221;) band is shown. <\/figcaption><\/figure>\n\n\n\n<p>A loop of the coverage of three scans (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2023\/09\/ews-g1_coverages.mp4\">mp4<\/a> and animated <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2023\/09\/ews-g1_coverages.gif\">gif<\/a>). <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">GOES-15 has become EWS-G2<\/h2>\n\n\n\n<p>It was recently <a href=\"https:\/\/www.spaceforce.mil\/News\/Article-Display\/Article\/3534522\/space-force-accepts-second-weather-satellite-through-noaa-partnership\/\">announced<\/a> by the Secretary of the Air Force that GOES-15 has become EWS-G2: <em>&#8220;The U.S. Space Force accepted the transfer of a second geostationary weather satellite from the National Oceanic and Atmospheric Administration to extend persistent weather coverage of the Indian Ocean region until the 2030 timeframe.&nbsp;&#8230; As it currently does with EWS-G1, NOAA will operate EWS-G2 on behalf of the Space Force from the NOAA Satellite Operations Facility in Suitland, Maryland, and Wallops Command and Data Acquisition Station in Wallops Island, Virginia.&#8221;<\/em> <\/p>\n\n\n\n<p>EWS-G2 has the same spectral coverage as the EWS-G1. The EWS-G2 was formerly NOAA\u2019s <a href=\"https:\/\/en.wikipedia.org\/wiki\/GOES_15\">GOES-15<\/a>. GOES-15 was launched in March 2010 and the <a href=\"https:\/\/www.star.nesdis.noaa.gov\/star\/news2010_201004_GOES15.php\">first GOES-15 images<\/a> were sent on April 6, 2010. A GOES-15 <a href=\"https:\/\/rammb.cira.colostate.edu\/projects\/goes-p\/noaa_technical_report_141_goes-15_science_test.pdf\">technical report<\/a> which was written soon after launch. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"960\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2023\/09\/image.gif\" alt=\"\" class=\"wp-image-54701\"\/><figcaption class=\"wp-element-caption\">First GOES-15 visible image from April 2010.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">More<\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.ssec.wisc.edu\/data\/geo\/#\/animation?satellite=ews-g1\">posted near realtime imagery<\/a> are free for public use (please credit UW-Madison\/SSEC) and users can contact <a href=\"https:\/\/www.ssec.wisc.edu\/datacenter\/contact-us\/\">UW\/SSEC Satellite Data Services<\/a> for information on data access \/ subscription. Most of the above images were made using the <a href=\"https:\/\/www.ssec.wisc.edu\/mcidas\/software\/x\/\">McIDAS-X<\/a> software. <a href=\"https:\/\/www.star.nesdis.noaa.gov\/star\/index.php\">NOAA\/NESDIS\/STAR<\/a> supplies some <a href=\"https:\/\/www.star.nesdis.noaa.gov\/GOESCal\/GOES-IO_InstrMonitor_Calibration.php\">calibration support of this imager<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>New routine schedule EWS-G1 (Electro-optical Infrared Weather System Geostationary) is a U.S. Space Force mission. The imager is now running a different routine scan schedule, as can be seen on the UW\/SSEC geo-browser. This schedule includes scans of the Indian Ocean, the extended Indian Ocean and Full Disks. Previously only Full Disk images had been [&hellip;]<\/p>\n","protected":false},"author":21,"featured_media":54694,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92,150,11,43],"tags":[],"class_list":["post-54685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ews-g1","category-ews-g2","category-goes-13","category-goes-15"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/54685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=54685"}],"version-history":[{"count":16,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/54685\/revisions"}],"predecessor-version":[{"id":54717,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/54685\/revisions\/54717"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/54694"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=54685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=54685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=54685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}