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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2020 Jan 23 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 23 Jan 2020 until 25 Jan 2020
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
23 Jan 2020071006
24 Jan 2020071004
25 Jan 2020070005

Bulletin

Solar activity was at very low levels. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10 MeV proton flux was at nominal values. Solar activity is expected to remain at very low levels.

The solar wind speed ranged between 330 to 380 km/s (ACE). The total magnetic field fluctuated between 2 and 7 nT. Bz varied between -6 and +5 nT. The interplanetary magnetic field (phi angle) was predominantly directed towards the Sun (negative sector).

Geomagnetic activity was quiet to unsettled, with the Kp index (NOAA) and the local k index (Dourbes) recording values of between 0 and 3. Mostly quiet conditions are expected on Jan 23-25, with possible isolated unsettled periods on Jan 23.

Today's estimated international sunspot number (ISN): 000, based on 13 stations.

Solar indices for 22 Jan 2020

Wolf number Catania///
10cm solar flux072
AK Chambon La Forêt014
AK Wingst008
Estimated Ap007
Estimated international sunspot number000 - Based on 14 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 X2026/03/30X1.5
Ultimo brillamento M2026/04/04M1.0
Ultima tempesta geomagnetica2026/04/03Kp7- (G3)
Giorni senza macchie
Ultimi 365 giorni3 giorni
20263 giorni (3%)
Ultimo giorno senza macchie2026/02/24
Media mensile Numero di Macchie Solari
marzo 202685.9 +7.7
aprile 2026122.8 +36.9
Ultimi 30 giorni99.9 +42.1

Questo giorno nella storia*

Brillamenti solari
12006M1.39
22002M1.38
31997C9.01
42002C8.7
52002C6.29
DstG
12000-292G4
21995-149G4
31977-95G3
41989-85G1
51960-76G1
*dal 1994

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