Visualizzazione archivio di lunedì, 11 febbraio AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Feb 11 1221 UTC

SIDC Forecast

Valid from 1230 UTC, 11 Feb 2013 until 13 Feb 2013
Brillamenti solari

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
11 Feb 2013109003
12 Feb 2013108013
13 Feb 2013105007

Bulletin

Solar activity was very low during the last 24 hours, with a soft Xray background in the low B level. There is a slight risk for an isolated C class flare from NOAA AR 1670, but the next 48 hours are expected to be mostly quiet in terms of flaring activity. Geomagnetic activity is expected to be low to unsettled for the next 48 hours, with the expected arrival, by mid-day, Feb. 12, of the CME of Feb. 9. Unsettled activity, at most, is foreseen from this event, as the bulk of the CME is passing northward of the Earth. Currently, quiet conditions are observed by the ACE spacecraft.

Today's estimated international sunspot number (ISN): 035, based on 03 stations.

Solar indices for 10 Feb 2013

Wolf number Catania///
10cm solar flux106
AK Chambon La Forêt010
AK Wingst006
Estimated Ap004
Estimated international sunspot number031 - Based on 14 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 X2026/02/04X4.21
Ultimo brillamento M2026/02/25M2.4
Ultima tempesta geomagnetica2026/03/03Kp5 (G1)
Giorni senza macchie
Ultimi 365 giorni3 giorni
20263 giorni (4%)
Ultimo giorno senza macchie2026/02/24
Media mensile Numero di Macchie Solari
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Ultimi 30 giorni53.3 -74.6

Questo giorno nella storia*

Brillamenti solari
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DstG
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*dal 1994

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