Visualizzazione archivio di domenica, 28 aprile AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Apr 28 1219 UTC

SIDC Forecast

Valid from 1230 UTC, 28 Apr 2013 until 30 Apr 2013
Brillamenti solari

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
28 Apr 2013127007
29 Apr 2013127007
30 Apr 2013127007

Bulletin

C-class flaring is expected, mainly from NOAA AR 1731, which has a beta- gamma configuration. Quiet geomagnetic conditions are expected.

Today's estimated international sunspot number (ISN): 069, based on 10 stations.

Solar indices for 27 Apr 2013

Wolf number Catania///
10cm solar flux127
AK Chambon La Forêt011
AK Wingst009
Estimated Ap007
Estimated international sunspot number074 - Based on 16 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmRadio burst typesCatania/NOAA
Nessuna

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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Notizie sul meteo spaziale

Ultimo brillamento X2025/12/08X1.1
Ultimo brillamento M2025/12/21M1.3
Ultima tempesta geomagnetica2025/12/21Kp5 (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
novembre 202591.8 -22.8
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