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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Mar 01 1229 UTC

SIDC Forecast

Valid from 1230 UTC, 01 Mar 2015 until 03 Mar 2015
Brillamenti solari

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protoni solari

Quiet

10cm fluxAp
01 Mar 2015123027
02 Mar 2015125017
03 Mar 2015127012

Bulletin

Solar activity was dominated by C-class flares from NOAA AR 2290 and 2994. The strongest was a C3.7 flare from NOAA AR 2290 peaking at 05:13 UT. More C-class flares are expected with chances of M-class flaring. Two full halo CMEs occurred on February 28. Both were backsided events. One starting at 04:36 UT (LASCO-C2) and the other at 21:36 UT. Additionally a CME directed to the NW was seen erupting at 15:12 UT, this is a frontside event coming from north of NOAA AR 2292. This CME was slow, it may arrive to the Earth on March 4 and cause at most minor storm conditions. Geomagnetic activity was dominated by a fast speed stream that caused active conditions with isolated minor storm periods starting at midnight on March 1 and still ongoing. The solar wind speed is around 500 km/s with magnetic fields intensities of 10 nT. More active conditions can be expected for today.

Today's estimated international sunspot number (ISN): 054, based on 14 stations.

Solar indices for 28 Feb 2015

Wolf number Catania///
10cm solar flux123
AK Chambon La Forêt035
AK Wingst012
Estimated Ap013
Estimated international sunspot number/// - Based on /// stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
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 M2025/12/20M1.0
Ultima tempesta geomagnetica2025/12/12Kp5 (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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