Visualizzazione archivio di sabato, 6 novembre AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2021 Nov 06 1232 UTC

SIDC Forecast

Valid from 1230 UTC, 06 Nov 2021 until 08 Nov 2021
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
06 Nov 2021091018
07 Nov 2021089010
08 Nov 2021088017

Bulletin

The new region on disc, NOAA region 2894, produced the strongest flare of the period, a C2.3 flare peaking at 21:57UT. As it is rotating further onto the disc it now shows to be bipolar with some small trailing spots. The spots of NOAA region 2891 have shrunk significantly and seem about to disappear completely, while the region did produce a low C flare in the period. NOAA region 2893 remained quiet. It remains likely that some C flaring will occur in the coming 24 hours.

No Earth directed CMEs have been recorded in coronagraph data.

The more than 10MeV proton flux was at background values and is expected to remain at background values. The greater than 2 MeV electron flux reached briefly above the 1000 pfu threshold during the diurnal maximum and is likely to do so again today. The 24h electron fluence remained at normal levels but is expected to be at normal to moderate or even high levels with the continued elevated Solar wind conditions.

Solar wind speed remained elevated in the wake of the CME. It decreased from 600km/s at the start of the period to around 500km/s, but saw again a peak of over 600km/s this morning. The interplanetary magnetic field showed a similar pattern, decreasing from 10nT to under 5nT but with again a peak over 10nT around midnight. The magnetic field orientation was variable and without sustained periods of any strong southward component. Solar wind conditions are expected to first continue to decrease but they may become slightly elevated again from late tomorrow November 7 or early November 8 due to possible weak high speed stream influences related to a small positive polarity equatorial coronal hole.

Geomagnetic conditions were quiet to active (NOAA Kp 3-4 and local K Dourbes 2-4). Geomagnetic conditions are expected to be mostly quiet to unsettled over the next days.

Today's estimated international sunspot number (ISN): 034, based on 12 stations.

Solar indices for 05 Nov 2021

Wolf number Catania///
10cm solar flux093
AK Chambon La Forêt022
AK Wingst014
Estimated Ap013
Estimated international sunspot number036 - Based on 28 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 giorni130.4 -16.1

Questo giorno nella storia*

Brillamenti solari
12002M8.82
21999M6.76
32001M2.91
42003M2.74
52001M2.31
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*dal 1994

Social networks