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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2017 Nov 23 1256 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
23 Nov 2017	074	011
24 Nov 2017	074	011
25 Nov 2017	074	008

Bulletin

Over the past 24 hours solar activity has been quiet. No significant flares have been recorded. All Active Regions (AR) have shown low levels of activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares.

The solar wind speed been decreasing around 525 and 425 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 4 nT. The Bz component has fluctuated between positive and negative, between -4 and +4 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

Today's estimated international sunspot number (ISN): 000, based on 15 stations.

Solar indices for 22 Nov 2017

Wolf number Catania	000
10cm solar flux	073
AK Chambon La Forêt	015
AK Wingst	012
Estimated Ap	011
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

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