{"id":792308,"date":"2024-12-30T11:26:06","date_gmt":"2024-12-30T16:26:06","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=792308"},"modified":"2024-12-30T11:26:06","modified_gmt":"2024-12-30T16:26:06","slug":"the-k7ra-solar-update-58","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=792308","title":{"rendered":"The K7RA Solar Update"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n\t\t\t\t\t<span class=\"date\">12\/30\/2024<\/span><\/p>\n<p>Strong solar activity continues, with worldwide propagation on 10<br \/>and 12 meters quite commonplace.<\/p>\n<p>Predicted solar flux is 255, 250, 210, 200, and 195 on December 30,<br \/>2024 through January 3, 2025, 190 on January 4-5, 170 on January 6,<br \/>160 on January 7-8, then 165, 170 and 165 on January 9-11, 170 on<br \/>January 12-13, 175 on January 14-15, 180 on January 16, 185 on<br \/>January 17-18, 200 on January 19-23, 185 on January 24-26, 175 on<br \/>January 27, and 180 on January 28-30, 2025.<\/p>\n<p>Predicted planetary A index is 8, 50, 20 and 8 on December 30, 2024<br \/>through January 2, 2025, 5 on January 3-4, 8 on January 5-6, 5 on<br \/>January 7-9, then 12, 10 and 8 on January 10-12, 5 on January 13-15,<br \/>then 8, 10 and 10 on January 16-18, 8 on January 19-23, and 5 on<br \/>January 24-31.<\/p>\n<p>The latest from F. K. Janda, OK1HH:<\/p>\n<p>&#8220;A cooling water pipe burst in the server room of the Joint Science<br \/>Operations Center (JSOC) at the Solar Dynamics Observatory (SDO) in<br \/>California on 26 November 2024. Since then, data from the<br \/>Helioseismic and Magnetic Imager (HMI) and Atmospheric Imaging Array<br \/>(AIA) instruments have been unavailable.<\/p>\n<p>&#8220;On the popular website  on the bottom<br \/>left, we usually find information on activity on the far side of the<br \/>Sun (at farside.htm) that would be needed<br \/>to predict developments around the Christmas season, for example.<br \/>This is because we were expecting the rise of active regions on the<br \/>Sun that were very active during the last solar revolution and whose<br \/>high activity we know about thanks to CMEs and the influx of protons<br \/>from flares on the Sun&#8217;s far side.<\/p>\n<p>&#8220;As expected, active regions on the Sun did appear and they were not<br \/>alone. Moderate solar flares are the order of the day, while we have<br \/>been expecting a geomagnetic disturbance during the Christmas<br \/>holidays since after the CME registration. But the particle clouds<br \/>missed the Earth, the disturbance did not take place, and<br \/>ionospheric shortwave propagation conditions remained above average.<\/p>\n<p>&#8220;But even better propagation conditions are likely to await us next<br \/>year. The high solar activity in October this year was probably not<br \/>yet the peak of the 25th cycle &#8211; that is yet to come!&#8221;<\/p>\n<p>From Space.Com, &#8220;The Sun in 2025: How the solar cycle will shape our<br \/>year ahead&#8221;:<\/p>\n<p>https:\/\/bit.ly\/3DA4N7L<\/p>\n<p>The latest report from Dr. Tamitha Skov, WX6SWW:<\/p>\n<p><iframe loading=\"lazy\" title=\"A Storm Comes in Time for Festivities &amp; Big Flares Pop | Solar Storm Forecast 25 December 2024\" width=\"1110\" height=\"624\" src=\"https:\/\/www.youtube.com\/embed\/qPI4_otUAME?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>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 article:<\/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 December 19 through 25, 2024 were 96, 148, 152,<br \/>176, 199, 219, and 218 with a mean of 172.6. 10.7 cm flux was 175,<br \/>184, 201.2, 223.3, 238.3, 258.5, and 252.7 with a mean of 219.<br \/>Planetary A index was 11, 13, 16, 14, 12, 12, and 5 with an average<br \/>of 11.9. Middle latitude A Index was 9, 10, 13, 15, 11, 9, and 5,<br \/>with a mean of 10.3.<\/p>\n<p>\u00a0<\/p>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"http:\/\/www.arrl.org\/news\/view\/the-k7ra-solar-update-859?rand=771671\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>12\/30\/2024 Strong solar activity continues, with worldwide propagation on 10and 12 meters quite commonplace. Predicted solar flux is 255, 250, 210, 200, and 195 on December 30,2024 through January 3,&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-792308","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\/792308","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=792308"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/792308\/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=792308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=792308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=792308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}