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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2019 Jan 03 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 03 Jan 2019 until 05 Jan 2019
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
03 Jan 2019075002
04 Jan 2019077004
05 Jan 2019079008

Bulletin

A new active region (NOAA 2732) is visible on the West limb and produced B1.2 flare peaking at 18:38 UT yesterday. No geoeffective coronal mass ejections (CMEs) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. Solar activity is expected to remain at low levels with small probabailty for C-class flares. Solar wind speed gradually decreased from about 350 till 300 km/s (DSCOVR). Bz varied between -2.5 and +2.5 nT. The geomagnetic conditions were quiet. Unsettled geomagnetic conditions can be expected today later (January 3). Active geomagnetic conditions can be expected from January 6 due to possible influence of the wind stream associated with the negative polarity equatorial coronal hole.

Today's estimated international sunspot number (ISN): 017, based on 09 stations.

Solar indices for 02 Jan 2019

Wolf number Catania016
10cm solar flux075
AK Chambon La Forêt003
AK Wingst002
Estimated Ap001
Estimated international sunspot number017 - Based on 21 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 M2025/12/21M1.3
Ultima tempesta geomagnetica2025/12/21Kp5 (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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