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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2019 Dec 29 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 29 Dec 2019 until 31 Dec 2019
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
29 Dec 2019072001
30 Dec 2019071001
31 Dec 2019071001

Bulletin

No active regions visible on the sun. Solar activity has been very low, no flares in the past 24 h, no changes expected.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 h.

The solar wind speed is at 300 km/s with interplanetary magnetic field magnitude of 4 nT. Geomagnetic conditions have been quiet and expected to remain so.

Today's estimated international sunspot number (ISN): 000, based on 14 stations.

Solar indices for 28 Dec 2019

Wolf number Catania///
10cm solar flux072
AK Chambon La Forêt///
AK Wingst002
Estimated Ap001
Estimated international sunspot number000 - Based on 20 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 X2026/01/18X1.9
Ultimo brillamento M2026/01/21M3.4
Ultima tempesta geomagnetica2026/01/22Kp5+ (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
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