{"id":70691,"date":"2026-05-30T18:15:00","date_gmt":"2026-05-30T18:15:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=70691"},"modified":"2026-05-31T21:52:16","modified_gmt":"2026-05-31T21:52:16","slug":"goes-19-glm-signature-of-a-bolide-over-eastern-massachusetts","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/70691","title":{"rendered":"GOES-19 GLM signature of a bolide over eastern Massachusetts"},"content":{"rendered":"<div style=\"width: 3002px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1806utc_goes19_visible_glmFlashExtentDensity_glmFlashPoints_bolide_MA_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1806utc_goes19_visible_glmFlashExtentDensity_glmFlashPoints_bolide_MA_anim.gif\" width=\"2992\" height=\"1668\" \/><\/a><p class=\"wp-caption-text\">GOES-19 Visible image at 1806 UTC, with an overlay of 1-minute GOES-19 GLM Flash Extent Density and GLM Flash Points from 1806-1808 UTC on 30 May [click to enlarge]<\/p><\/div>\n<p>A CONUS Sector GOES-19 <em>(GOES-East)<\/em> Visible image with overlays of 1-minute GLM <a href=\"https:\/\/www.star.nesdis.noaa.gov\/GOES\/documents\/GLM_Quick_Guides_May_2019.pdf\"><strong>Flash Extent Density<\/strong><\/a> and GLM Flash Points <em><strong>(above)<\/strong><\/em> showed the signature of a high-altitude bolide that was entering the Earth&#8217;s upper atmosphere over far eastern Massachusetts at <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1806utc_goes19_visible_1807utc_glm.png\"><strong>1807 UTC<\/strong><\/a> on 30 May 2026. This bolide created a sonic boom that was heard in several communities.<\/p>\n<p>Cursor samples <em><strong>(below)<\/strong><\/em> indicated that the maximum GLM Flash Extent Density values were 7 flashes\/min (darker red pixels within the northern portion of the bolide signature), in addition to a flash duration of 0.024 sec with a flash area of 67 km<sup>2<\/sup>.<\/p>\n<div style=\"width: 3002px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1807utc_goes19_glmFlashExtentDensity_cursor_sample.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1807utc_goes19_glmFlashExtentDensity_cursor_sample.png\" width=\"2992\" height=\"1668\" \/><\/a><p class=\"wp-caption-text\">Cursor sample of the maximum GOES-19 GLM Flash Extent Density value at 1807 UTC on 30 May [click to enlarge]<\/p><\/div>\n<p>\u00a0<\/p>\n<div style=\"width: 3002px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1807utc_goes19_gmFlashPoint_cursor_sample.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_1807utc_goes19_gmFlashPoint_cursor_sample.png\" width=\"2992\" height=\"1668\" \/><\/a><p class=\"wp-caption-text\">Cursor sample of the GOES-19 GLM Flash Point values at 1807 UTC on 30 May [click to enlarge]<\/p><\/div>\n<p>A map of fireball reports from the <a href=\"https:\/\/www.amsmeteors.org\/\"><strong>American Meteor Society<\/strong><\/a> site <strong><em>(below)<\/em><\/strong> displayed the large area from which this daytime event was seen. A <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_ams_fireball_event_zoom.png\"><strong>closer view<\/strong><\/a> indicated that the bolide likely traveled along a northwest-to-southeast trajectory.<\/p>\n<div style=\"width: 3258px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_ams_fireball_event.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/05\/260530_ams_fireball_event.png\" width=\"3248\" height=\"2122\" \/><\/a><p class=\"wp-caption-text\">Map of fireball reports on 30 May [click to enlarge]<\/p><\/div>\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-x wp-block-embed-x\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\"><a href=\"https:\/\/x.com\/hashtag\/MeteorSighting?src=hash&amp;ref_src=twsrc%5Etfw\">#MeteorSighting<\/a>: Eyewitnesses in New England and <a href=\"https:\/\/x.com\/NOAA?ref_src=twsrc%5Etfw\">@NOAA<\/a>\u2019s GOES-19 satellite reported a bright fireball on Saturday, May 30, at 2:06 p.m EDT accompanied by a loud noise. The meteor appears to have fragmented at an altitude of 40 miles over northeast MA and southeast NH. The energy\u2026<\/p>&mdash; NASA Space Alerts (@NASASpaceAlerts) <a href=\"https:\/\/x.com\/NASASpaceAlerts\/status\/2060854183155106193?ref_src=twsrc%5Etfw\">May 30, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.x.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A CONUS Sector GOES-19 (GOES-East) Visible image with overlays of 1-minute GLM Flash Extent Density and GLM Flash Points (above) showed the signature of a high-altitude bolide that was entering the Earth&#8217;s upper atmosphere over far eastern Massachusetts at 1807 UTC on 30 May 2026. This bolide created a sonic boom that was heard in [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":70697,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[76,159],"tags":[],"class_list":["post-70691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glm","category-goes-19"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/70691","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=70691"}],"version-history":[{"count":13,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/70691\/revisions"}],"predecessor-version":[{"id":70705,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/70691\/revisions\/70705"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/70697"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=70691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=70691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=70691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}