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IK3IUL

oltre 100 messaggi sul Forum

Inserito il - 10/04/2018 : 11:45:51
Forum ARI Verona ik3iul Utente Regione: Veneto Città: Peschiera del Garda 81 Messaggi Inserito il - 10/04/2018 : 11:41:00 Mostra Profilo Invia Email Modifica Messaggio Invia a ik3iul un Messaggio Privato Rispondi Quotando Elimina Messaggio :Product: SWPC Space Weather Alerts ALTS.txt :Issued: 2018 Apr 10 0933 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # See http://swpc.noaa.gov/alerts/ for description and other displays # Send comments and suggestions to SWPC.Webmaster@noaa.gov # # SWPC Space Weather Alerts Issued in the last 24 hours #--------------------------------------------------------------------- Space Weather Message Code: WARK05 Serial Number: 1466 Issue Time: 2018 Apr 10 0702 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2018 Apr 10 0702 UTC Valid To: 2018 Apr 10 1200 UTC Warning Condition: Onset NOAA Scale: G1 - Minor www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Spacecraft - Minor impact on satellite operations possible. Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine. #------------------------------------------------- Space Weather Message Code: WARK04 Serial Number: 3456 Issue Time: 2018 Apr 10 0552 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3455 Valid From: 2018 Apr 09 2130 UTC Now Valid Until: 2018 Apr 10 1500 UTC Warning Condition: Persistence www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Aurora - Aurora may be visible at high latitudes such as Canada and Alaska. #------------------------------------------------- Space Weather Message Code: WARK05 Serial Number: 1465 Issue Time: 2018 Apr 09 2335 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2018 Apr 09 2335 UTC Valid To: 2018 Apr 10 0600 UTC Warning Condition: Onset NOAA Scale: G1 - Minor www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Spacecraft - Minor impact on satellite operations possible. Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine. #------------------------------------------------- Space Weather Message Code: ALTK04 Serial Number: 2048 Issue Time: 2018 Apr 09 2152 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2018 Apr 09 2151 UTC Synoptic Period: 2100-2400 UTC Active Warning: Yes www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Aurora - Aurora may be visible at high latitudes such as Canada and Alaska. #------------------------------------------------- Space Weather Message Code: WARK04 Serial Number: 3455 Issue Time: 2018 Apr 09 2131 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2018 Apr 09 2130 UTC Valid To: 2018 Apr 10 0600 UTC Warning Condition: Onset www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Aurora - Aurora may be visible at high latitudes such as Canada and Alaska. #------------------------------------------------- :Product: Solar and Geophysical Activity Summary :Issued: 2018 Apr 10 0245 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar and Geophysical Activity Summary SGAS Number 100 Issued at 0245Z on 10 Apr 2018 This report is compiled from data received at SWO on 09 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was quiet to active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 069 SSN 000 Afr/Ap 011/010 X-ray Background <A1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-15 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 6.00e+06 e/(cm2-ster-day) (GOES-15 satellite synchronous orbit W135 degrees) 3 Hour K-indices: Boulder 2 2 3 2 3 3 2 4 Planetary 1 1 3 1 2 2 3 4 F. Comments: None :Product: Weekly Highlights and Forecasts :Issued: 2018 Apr 09 0536 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # http://www.swpc.noaa.gov/weekly.html # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 02 - 08 April 2018 Solar activity was at very low levels throughout the period with only a few low level B-class flare observed on 03 Apr from Region 2703 (S08, L=193, class/area Axx/010 on 31 Mar). No Earth-directed coronal mass ejections were observed. No proton events were observed at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on 02-04 Apr and at moderate levels on 05-08 Apr. The largest flux of the period was 2,150 pfu observed at 02/1915 UTC. Geomagnetic field activity was mostly quiet with unsettled periods observed on 05 Apr. Solar wind speed began the period slightly enhanced near 470 km/s with total field around 4-5 nT. Solar wind speed declined to near 320 km/s by 04 April before increasing briefly to near 450 km/s by late on 05 Apr. Total field increased to a maximum of 9 nT at 05/2130 UTC. By 07 Apr, solar wind speed had decreased to 330-380 km/s while the total field decreased to 5 nT or less. Forecast of Solar and Geomagnetic Activity 09 April - 05 May 2018 Solar activity is expected to be at very low levels throughout the forecast period. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 12-30 Apr due to recurrent coronal hole high speed stream (CH HSS) influence. Geomagnetic field activity is expected to be at unsettled to active levels on 10-16 Apr and again from 19-23 Apr with G1 (minor) storm levels likely on 10-11 Apr due to recurrent CH HSS effects. Silverio Ortolani Forum ARI Verona © 2000-05 Snitz Communications Torna all'inizio della Pagina Questa pagina e' stata generata in 0,17 secondi Snitz Forums 2000 Roshe Run Italia, Nike Air Max 90 Italia, Air Jordan Italia
Modificato da - IK3IUL in Data 10/04/2018 11:47:50


Messaggi: 321 ~ Membro dal: 04/02/2014 ~ Ultima visita: Ieri

ik2rgv

oltre 100 messaggi sul Forum

Inserito il - 10/04/2018 : 13:09:15

Ciao Silverio, grazie per il prospetto che pubblichi con regolarità sul forum.
Vorrei però chiederti a nome di tanti, di esprimere anche un conciso riassunto di quanto esposto, con parole comprensibili anche per coloro che non sono particolarmente ferrati in materia oppure "non masticano" l'inglese.

Grazie ancora, 73 Stefano

Firma di ik2rgv

Stefano (I-QRP 353)

Regione Lombardia ~ Prov.: Mantova ~ Città: Canneto sull'Oglio ~ Messaggi: 333 ~ Membro dal: 01/02/2015 ~ Ultima visita: Oggi

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