Visualizzazione archivio di martedì, 11 agosto AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Aug 11 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 11 Aug 2015 until 13 Aug 2015
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
11 Aug 2015101010
12 Aug 2015097010
13 Aug 2015095010

Bulletin

Solar activity remains to be very low with only B-class flares reported during the last 24 hours. The only large sunspot group visible on the solar disc, NOAA AR 2396 is decaying but it still has potential to be the source of the B-class flares and possibly also an isolated C-class flare. No Earth directed CMEs were observed during last 24 hours.

The Earth is inside the slow solar wind with the speed of about 440 km/s. The interplanetary magnetic field magnitude was fluctuating, between 5 and 10nT, during the last 10 hours and its current value is about 5nT. The geomagnetic conditions are presently quiet and we expect them to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 080, based on 21 stations.

Solar indices for 10 Aug 2015

Wolf number Catania///
10cm solar flux106
AK Chambon La Forêt017
AK Wingst010
Estimated Ap011
Estimated international sunspot number064 - Based on 30 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!

A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Abbonamenti
Donations
Supporta SpaceWeatherLive.com! Dona
Supporta SpaceWeatherLive con il nostro merchandise
Dai un'occhiata al nostro merchandise

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
dicembre 2025124 +32.2
gennaio 2026119.1 -4.9
Ultimi 30 giorni122 +10.9

Questo giorno nella storia*

Brillamenti solari
12023M2.8
22002M1.92
32015M1.61
42001M1.5
51999M1.19
DstG
11979-57G1
22004-56
31958-52G1
41959-52G2
52006-51G1
*dal 1994

Social networks