Viewing archive of Friday, 11 August 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Aug 11 1326 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
11 Aug 2017	071	006
12 Aug 2017	071	006
13 Aug 2017	072	009

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. Active Region (AR) 2670 (Mcintosh class:Hsx; Mag. type:Alpha) has been quiet. 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 has varied between 470 to 425 km/s over the past 24 hours. The total magnetic field strength has been slowly increasing from around 5 nT to 8 nT. The Bz component fluctuated around 0 nT but was mainly positive, ranging between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 1-2 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

Today's estimated international sunspot number (ISN): 012, based on 20 stations.

Solar indices for 10 Aug 2017

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	010
AK Wingst	007
Estimated Ap	005
Estimated international sunspot number	013 - Based on 22 stations

Noticeable events summary

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

All times in UTC

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