{"id":791639,"date":"2024-12-02T11:51:03","date_gmt":"2024-12-02T16:51:03","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=791639"},"modified":"2024-12-02T11:51:03","modified_gmt":"2024-12-02T16:51:03","slug":"the-k7ra-solar-update-54","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=791639","title":{"rendered":"The K7RA Solar Update"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n\t\t\t\t\t<span class=\"date\">12\/02\/2024<\/span><\/p>\n<p>ARRL Headquarters was closed on November 29. So, this regular Friday<br \/>bulletin was moved to the following Monday (12\/2).<\/p>\n<p>Solar activity increased during the current reporting week, November<br \/>21-27. Average daily sunspot number rose to 155.7, and average daily<br \/>solar flux was 282.2.<\/p>\n<p>Weekly Commentary on the Sun, the Magnetosphere, and the Earth&#8217;s<br \/>Ionosphere &#8211; November 28, 2024, by F. K. Janda, OK1HH:<\/p>\n<p>&#8220;After the unexpected solar proton flare of 21 November, which took<br \/>place beyond the Sun&#8217;s western limb, a rain of higher-energy protons<br \/>hit the Earth&#8217;s atmosphere. This solar radiation storm had a greater<br \/>impact at higher latitudes in the southern hemisphere, where it<br \/>caused a significant increase in attenuation.<\/p>\n<p>&#8220;Two days later, two new large sunspot groups appeared near the<br \/>southeastern limb of the Sun. These produced moderate eruptions<br \/>daily, which is more or less normal for the 11-year maximum. These<br \/>are AR3905 and AR3906, which have grown rapidly to a size where they<br \/>can be observed with the naked eye. There is a relatively small<br \/>coronal hole near them that could be influencing the solar wind<br \/>enhancement.<\/p>\n<p>&#8220;Following the eruption of a plasma filament near AR3901, a G2 class<br \/>geomagnetic storm is possible on November 28-29, when a CME is<br \/>expected to impact. However, around 1900 UT on November 28, when<br \/>this information is written as usual, nothing is still happening. We<br \/>will see what happens next. It is quite possible that the plasma<br \/>cloud will only hit the Earth a little and it is also not out of the<br \/>question that it will miss the Earth completely. So, any prediction<br \/>at this point has a low probability of coming true.&#8221;<\/p>\n<p>New video from Dr. Tamitha Skov, WX6SWW:<\/p>\n<p><iframe loading=\"lazy\" title=\"Multiple Solar Storms Come and an Historic Far Side Blast | Space Weather News 28 November 2024\" width=\"1110\" height=\"624\" src=\"https:\/\/www.youtube.com\/embed\/1P4sCwn8TZI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Send your tips, reports, observations, questions and comments to<br \/>k7ra@arrl.net. When reporting observations, don&#8217;t forget to tell us<br \/>which mode you were operating.<\/p>\n<p>For more information concerning shortwave radio propagation, see<br \/> and the ARRL Technical Information<br \/>Service web page at,  For<br \/>an explanation of numbers used in this bulletin, see<br \/> .<\/p>\n<p>An archive of past propagation bulletins is at<br \/> . More good<br \/>information and tutorials on propagation are at  .<\/p>\n<p>Also, check this:<\/p>\n<p>https:\/\/bit.ly\/3Rc8Njt<\/p>\n<p>&#8220;<em>Understanding Solar Indices<\/em>&#8221; from September 2002 <em>QST<\/em>.<\/p>\n<p>Instructions for starting or ending email subscriptions to ARRL<br \/>bulletins are at  .<\/p>\n<p>Sunspot numbers for November 21 through 27, 2024 were 148, 170, 156,<br \/>164, 140, 163, and 141, with a mean of 155.7. 10.7 cm flux was<br \/>166.2, 179.1, 199.9, 202.7, 220.4, 222.3, and 225, with a mean of<br \/>202.2. Estimated planetary A indices were 8, 12, 8, 7, 11, 7, and 5,<br \/>with a mean of 8.3. Middle latitude A Index was 5, 10, 7, 7, 9, 6,<br \/>and 3, with a mean of 6.7.<br \/>\u00a0<\/p>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"http:\/\/www.arrl.org\/news\/view\/the-k7ra-solar-update-855?rand=771671\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>12\/02\/2024 ARRL Headquarters was closed on November 29. So, this regular Fridaybulletin was moved to the following Monday (12\/2). Solar activity increased during the current reporting week, November21-27. Average daily&hellip; <\/p>\n","protected":false},"author":1,"featured_media":771673,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-791639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ARRL"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/791639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=791639"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/791639\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/771673"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=791639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=791639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=791639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}