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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2016 Aug 02 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 02 Aug 2016 until 04 Aug 2016
Brillamenti solari

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Protoni solari

Quiet

10cm fluxAp
02 Aug 2016072020
03 Aug 2016072022
04 Aug 2016072008

Bulletin

Solar activity was very low. No C flares or halo CMEs were observed. Solar activity is expected to remain very low (no C flaring) for the next 24 hours. In the past 24 hours, solar wind speed measured by DSCOVR varied between 320 and 360 km/s, while the magnitude of the Interplanetary Magnetic Field first was around 5 nT until it started fluctuating between about 5 and 10 nT since 4h UT on August 2. In the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 1 and 2; NOAA Kp between 1 and 2). Active to minor geomagnetic storm conditions (K Dourbes = 4-5) are possible on August 2 and 3 due to the expected arrival of a high speed stream associated with a positive coronal hole. A return to quiet to unsettled geomagnetic conditions is expected on August 4.

Today's estimated international sunspot number (ISN): 013, based on 10 stations.

Solar indices for 01 Aug 2016

Wolf number Catania///
10cm solar flux072
AK Chambon La Forêt///
AK Wingst004
Estimated Ap004
Estimated international sunspot number007 - Based on 31 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 M2025/12/31M7.2
Ultima tempesta geomagnetica2025/12/22Kp5 (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
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