Visualizzazione archivio di lunedì, 30 ottobre AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2023 Oct 30 1231 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

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

Protoni solari

Quiet

10cm fluxAp
30 Oct 2023133019
31 Oct 2023135014
01 Nov 2023135005

Solar Active Regions and flaring

Solar flaring activity was at low levels in the past 24 hours with isolated C-class flaring. The strongest activity was an impulsive C7.9 flare, peak time at 13:09 UTC on Oct 29th, produced by active region NOAA AR 3474 (beta-gamma), which is the most complex region on the visible solar disc and was solely responsible for the flaring activity. NOAA AR 3474 has decayed into plage and NOAA AR 3475 decreased its magnetic complexity to type alpha. Both regions are approaching the west limb. NOAA AR 3472 (beta) and NOAA AR 3473 (beta) have remained silent. The solar flaring activity is expected to be at low levels over the coming days with likely C-class flares and low chances for isolated M-class flaring.

Espulsioni di massa coronale

No Earth-directed coronal mass ejections (CMEs) have been detected in the available coronagraph imagery.

Vento solare

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) were under the ongoing influence of a high speed stream from a positive polarity corona hole. The solar wind velocity reached a maximum of 592 km/s. The interplanetary magnetic field was slightly perturbed with maximum value of 7.2 nT and a minimum Bz of -6.1 nT. The B field remained predominantly in the positive sector (directed away from the Sun) reflecting the polarity of the geo-effective coronal hole. The solar wind conditions are expected to remain elevated over throughout the next 24h and slowly return to background slow solar wind conditions by Nov 1st.

Geomagnetism

The geomagnetic conditions over the past 24 hours were quiet to active. Quiet to active geomagnetic conditions are expected to prevail throughout Oct 30th and Oct 31st with chances for isolated minor storms. Mostly quiet to unsettled conditions are expected for Nov 1st as the influence of the ongoing high speed stream wanes.

Proton flux levels

Over the past 24 hours the greater than 10 MeV GOES proton flux was at background levels and is expected to continue so over the next days.

Electron fluxes at geostationary orbit

The greater than 2 MeV GOES 16 electron flux has exceeded the 1000 pfu threshold and is expected to oscillate around and above this threshold in the upcoming days.The 24h electron fluence was at nominal level and is expected to increase to moderate levels in the next 24 hours and remain at moderate levels for the upcoming days.

Today's estimated international sunspot number (ISN): 078, based on 13 stations.

Solar indices for 29 Oct 2023

Wolf number Catania///
10cm solar flux135
AK Chambon La Forêt037
AK Wingst028
Estimated Ap030
Estimated international sunspot number062 - Based on 16 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

Tutti gli orari in UTC

<< Vai alla pagina della panoramica giornaliera

Ultime notizie

Supporta SpaceWeatherLive.com!

Molte persone vengono su SpaceWeatherLive per seguire l'attività del Sole o sapere se ci sia la possibilità di vedere l'aurora, ma a maggior traffico corrispondono costi maggiori. Considerate una donazione se vi piace SpaceWeatherLive così che possiamo mantenere online il sito web!

Dona SpaceWeatherLive Pro
Supporta SpaceWeatherLive con il nostro merchandise
Dai un'occhiata al nostro merchandise

Notizie sul meteo spaziale

Ultimo brillamento X2025/03/28X1.1
Ultimo brillamento M2025/04/01M2.5
Ultima tempesta geomagnetica2025/03/27Kp5 (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
marzo 2025134.2 -20.4
aprile 2025143 +8.8
Ultimi 30 giorni129.8 -16.3

Questo giorno nella storia*

Brillamenti solari
12001X1.21
22001M7.3
32001M4.52
42013M3.28
52004M2.47
DstG
11993-165G3
21968-112G3
31978-109G1
41984-108G2
51989-101G2
*dal 1994

Social networks