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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2017 May 07 1230 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

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

Protoni solari

Quiet

	10cm flux	Ap
07 May 2017	072	016
08 May 2017	073	012
09 May 2017	073	015

Bulletin

Over the past 24 hours solar activity has been low. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected in coronagraph observations. 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 small probability of C-class flares. The solar wind speed has been fluctuating between 370 and 340 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 4 nT and 8.5 nT. The Bz component was largely positive but turned negative, and remained negative, throughout the morning, varying between -4 nT and 2 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Due to the negative Bz this morning the K/Kp has remained at 3, and with increased solar wind speeds may create active conditions. Over the next 24 hours Geomagnetic conditions are expected to be quiet to unsettled.

Today's estimated international sunspot number (ISN): 022, based on 10 stations.

Solar indices for 06 May 2017

Wolf number Catania	///
10cm solar flux	073
AK Chambon La Forêt	011
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	027 - Based on 23 stations

Noticeable events summary

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

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