{"id":792197,"date":"2024-12-20T15:30:10","date_gmt":"2024-12-20T20:30:10","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=792197"},"modified":"2024-12-20T15:30:10","modified_gmt":"2024-12-20T20:30:10","slug":"the-k7ra-solar-update-57","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=792197","title":{"rendered":"The K7RA Solar Update"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n\t\t\t\t\t<span class=\"date\">12\/20\/2024<\/span><\/p>\n<p>Excellent HF conditions greeted hams in the ARRL 10-Meter contest<br \/>last weekend. Recent indicators show a sudden shift to two digit<br \/>daily sunspot numbers from three, and although there is nothing<br \/>significant about 100, it makes one notice.<\/p>\n<p>All daily sunspot numbers this week were 97 or less.<\/p>\n<p>Perhaps this indicates a move off of solar maximum, or to a future<br \/>with a second maximum.<\/p>\n<p>Solar activity was way, way down this week with an average daily<br \/>sunspot number at just 88.<\/p>\n<p>Predicted solar flux is 175, 180, 180, 185 and 180 on December<br \/>20-24, 175 on December 25-26, 180 on December 27, 185 on December<br \/>28-29, 180 on December 30 through January 2, 2025, and 175 on<br \/>January 3-4, 170 on January 5-6, 160 on January 7-8, then 165, 179,<br \/>165, and 170 on January 9-12, 165 on January 13-14, 170 on January<br \/>15-16, 175 on January 17-18, 180 on January 19-23, and 185 on<br \/>January 24-25.<\/p>\n<p>The forecast for Planetary A index shows a quiet 5 on December<br \/>20-22, 8 on December 23-24, and 5 on December 25 through January 4,<br \/>2025, then 15 and 8 on January 5-6, 5 on January 7-9, then 12, 10<br \/>and 8 on January 10-12, and 5 on January 13-31.<\/p>\n<p>OK1HH does not seem to have a commentary this week.<\/p>\n<p>The latest report from Dr. Tamitha Skov, WX6SWW:<\/p>\n<p><iframe loading=\"lazy\" title=\"Solar Eye-Candy &amp; Massive Far Side Eruptions | Space Weather Spotlight 19 December 2024\" width=\"1110\" height=\"624\" src=\"https:\/\/www.youtube.com\/embed\/wClI7PKn3K0?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 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 12 through 18 2024 were 91, 82, 86, 97,<br \/>90, 88, and 82 with a mean of 88. 10.7 cm flux was 172, 163.7,<br \/>170.5, 172, 166.7, 170, and 173.5 with a mean of 169.8. Estimated<br \/>planetary A indices were 6, 4, 10, 12, 14, 29, and 15, with a mean<br \/>of 12.9. Middle latitude A Index was 4, 2, 8, 9, 11, 20, and 12,<br \/>with a mean of 9.4.<\/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-858?rand=771671\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>12\/20\/2024 Excellent HF conditions greeted hams in the ARRL 10-Meter contestlast weekend. Recent indicators show a sudden shift to two digitdaily sunspot numbers from three, and although there is nothingsignificant&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-792197","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\/792197","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=792197"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/792197\/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=792197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=792197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=792197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}