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Larghezza finestra: 640 x 480 800 x 600 1024 x 768 1280 x 1024 Nome Utente: Password: Modo: Base  Aiuto  Finestra  Formato: Carattere Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Grandezza 1 2 3 4 5 6   Colore Nero Rosso Giallo Rosa Verde Arancione Viola Blu Beige Bordò Verde Oliva Blu Marino Marrone Verde Limone Icona Messaggio:                             Messaggio:   * Il codice HTML è OFF * Il Codice Forum è ON Faccine [quote][i]Messaggio inserito da ik3iul[/i] [br]http://www.arifidenza.it/forum/topic.asp?TOPIC_ID=359032 :Product: Forecast Discussion :Issued: 2019 Dec 26 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Solar Activity .24 hr Summary... Solar activity was very low this period. Region 2753 (S30E26, Axx/alpha) and Region 2754 (N25W48, Axx/alpha), the only 2 numbered regions on the disk, were inactive, and have exhibited significant decay over the period. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to continue at very low levels on 26-28 Dec. Energetic Particle .24 hr Summary... Both the greater than 2 MeV electron flux and the greater than 10 MeV proton flux were below event thresholds throughout the period. .Forecast... The greater than 2 MeV electron flux is expected to be at normal to moderate levels through the forecast period. The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period. Solar Wind .24 hr Summary... Solar wind parameters became slightly enhanced this period due to a SSBC and arrival of weak, negative polarity CH HSS influence. Wind speeds increased from ambient levels to ~400 km/s. Total field was 2-9 nT, and the Bz component underwent a brief, southward deflection of -6 nT. Phi angle became mostly negative around 25/1713 UTC. .Forecast... Weak, negative polarity CH HSS influence is anticipated to continue over the course of 26 Dec. Parameters are anticipated to settle back to normal, background levels on 27-28 Dec. Geospace .24 hr Summary... The geomagnetic field was quiet to unsettled. .Forecast... Isolated unsettled conditions are possible on 26 Dec due to negative polarity, CH HSS effects. Otherwise, quiet conditions are expected the next three days (26-28 Dec). Ciao GIOVANNI... IK3JLV sei chiamato ad esprimere la tua considerazione essendo preparato ad affrontare questo enigma solare che coinvolge I Dxer più incalliti. Happy new TWENTI TWENTI. Ik3iul Silverio [/quote]    Allega file   Clicca qui per inserire la tua firma nel messaggio.