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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Mar 29 1219 UTC

SIDC Forecast

Valid from 1230 UTC, 29 Mar 2013 until 31 Mar 2013
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
29 Mar 2013104019
30 Mar 2013106007
31 Mar 2013108007

Bulletin

Solar activity is expected to remain at low levels for the next 48 hours, with only a small chance for an isolated C flare from NOAA AR 1708. Geomagnetic conditions are currently active at planetary levels (Kp=4), as the Earth is still under the influence of a coronal hole. Unsettled to isolated periods of active conditions are still possible today, but we expect the geomagnetic activity to return to quiet levels by March 30.

Today's estimated international sunspot number (ISN): 049, based on 06 stations.

Solar indices for 28 Mar 2013

Wolf number Catania061
10cm solar flux099
AK Chambon La Forêt022
AK Wingst011
Estimated Ap011
Estimated international sunspot number034 - Based on 15 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 X2026/02/02X1.6
Ultimo brillamento M2026/02/03M1.7
Ultima tempesta geomagnetica2026/01/28Kp5+ (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
dicembre 2025124 +32.2
febbraio 2026114 -10
Ultimi 30 giorni118.1 +6.2

Questo giorno nella storia*

Brillamenti solari
12025M8.88
22025M6.1
32025M4.32
42001M3.53
52025M3.1
DstG
11992-170G4
21969-161G2
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41989-74G2
52022-66G1
*dal 1994

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