{"id":182,"date":"2017-02-20T16:17:53","date_gmt":"2017-02-20T15:17:53","guid":{"rendered":"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/?page_id=182"},"modified":"2017-09-11T12:01:18","modified_gmt":"2017-09-11T10:01:18","slug":"2002-07-29","status":"publish","type":"page","link":"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/2002-07-29\/","title":{"rendered":"2002-07-29b-30"},"content":{"rendered":"<h3>SSC24 July 29-30 2002 MC, CMEN34 (see text)<\/h3>\n<h3><a href=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/2002-07-29\/29july02comp\/\" rel=\"attachment wp-att-711\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-711 alignleft\" src=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/files\/2017\/02\/29July02comp-228x300.jpg\" alt=\"\" width=\"500\" height=\"658\" srcset=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/files\/2017\/02\/29July02comp-228x300.jpg 228w, https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/files\/2017\/02\/29July02comp.jpg 718w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/h3>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/2002-07-29\/29-30julycor\/\" rel=\"attachment wp-att-729\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-729\" src=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/files\/2017\/02\/29-30Julycor-228x300.jpg\" alt=\"\" width=\"500\" height=\"658\" srcset=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/files\/2017\/02\/29-30Julycor-228x300.jpg 228w, https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/files\/2017\/02\/29-30Julycor.jpg 718w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>29 July<\/strong> 10:28-11:15 UT: Series of microwaves bursts 4.5-2GHz\u00a0<strong>(A)<\/strong> (Ondrejov) associated with a GOES X ray event (Solar flare S10-W10 10:27-11:13 UT; HESSI flare X 232 Y -289). 10:42:10 UT: Types III bursts (frequency range 170-0.1 MHz, Potsdam, DAM\u00a0 and WIND\/Waves); they are followed by a broad continuum\u00a0at decameter wave-lengths (see middle raw, DAM right panel and upper raw, right panel from Postdam).<\/p>\n<ul>\n<li>(11-14 UT 200-40 MHz, Potsdam). This event occurs in coincidence with the brightening of the trailing part of a CME which displays a slow evolution (<em><strong>CME1<\/strong><\/em> Partial Halo 00:30 UT, P 311, W <em>&gt;<\/em>173, V 363, 376, 280 km <sup>\u22121<\/sup>).<\/li>\n<li>12:02-12:10 UT: Type III burst followed by the onset of a type II burst detected by WIND\/Waves, 12:10-12:45 UT (4200-1300 kHz). The radio emissions result from the interaction between <em>CME1<\/em> and a faster CME2 (<strong>CMEN34<\/strong> 12:07 PA 13 Width <em>&gt;<\/em> V 562,512, 532 km s<sup>\u22121<\/sup>), see in particular lower raw, middle and right panels.<\/li>\n<\/ul>\n<p>Note that the observing coverage of the two CMEs is very poor, with no observation for two time periods (09:30-10:35 UT and 11:09 -12:07 UT). We suggest that both episodes could be associated with CMEN34 rising and interacting with and which has a smaller velocity. on July 31<\/p>\n<p>This event shares the following characteristics:\u00a0 <strong>Type IV (A-B) and a Type II, Encounter<\/strong> which\u00a0 might result\u00a0 from the <strong>interaction <\/strong> between CME1 and CME34.<\/p>\n<p>CME34 continues its progression with decreasing velocity. On July 30, a new CME with an increasing velocity (<strong>CME2<\/strong> July 23:30 PA 351 (deg), Width 351, V 360, 395, 420) appears in the same region as CME52. Considering their respective progression (see the SOHO catalog), their encounter is estimated to happen roughly on July31 UT at 01 UT; <strong>CME2<\/strong> will continue its progression and will arrive, on August01 <strong>around 17 UT<\/strong> in the earth environnement. SSC26 happens the same day at 23:09 UT.<\/p>\n<p><strong>We suggest that SSC26 is associated with 2 successive CMEs: CMEN34-CME2 (July 30, 23:30 UT).<\/strong><\/p>\n<p><em>\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SSC24 July 29-30 2002 MC, CMEN34 (see text) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 29 July 10:28-11:15 UT: Series of microwaves bursts 4.5-2GHz\u00a0(A) (Ondrejov) associated with a GOES X ray event (Solar flare S10-W10 10:27-11:13 UT; HESSI flare X 232 Y <a class=\"more-link\" href=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/2002-07-29\/\">Continue reading <i class=\"fa fa-chevron-right\"><\/i><\/a><\/p>\n","protected":false},"author":43,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-fullwidth.php","meta":{"footnotes":""},"class_list":["post-182","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2002-07-29b-30 - Multi-instrument analysis of solar events during 2002<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites-lira.obspm.fr\/gmi-radio-cme\/2002-07-29\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2002-07-29b-30 - Multi-instrument analysis of solar events during 2002\" \/>\n<meta property=\"og:description\" content=\"SSC24 July 29-30 2002 MC, CMEN34 (see text) &nbsp; 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