Viewing archive of Sunday, 6 August 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Aug 06 1243 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
06 Aug 2017	074	020
07 Aug 2017	074	007
08 Aug 2017	074	007

Bulletin

Beta region NOAA 2670 produced a few low B flares within the past 24 hours. Very low solar activity (no C flares) is expected in the next 48 hours. No earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. Under the influence of the high speed stream from a positive coronal hole, solar wind speed registered by DSCOVR varied between about 605 and 790 km/s. The Interplanetary Magnetic Field (IMF) pointed away from the Sun and its magnitude varied between about 2 and 7 nT. Bz varied between about -6 and 6 nT. Quiet to active geomagnetic conditions (K Dourbes between 2 and 4; NOAA Kp between 3 and 4) were registered in the past 24 hours. Active geomagnetic conditions (K Dourbes = 4) are possible on August 6. Quiet to unsettled geomagnetic levels are expected on August 7 and 8.

Today's estimated international sunspot number (ISN): 012, based on 24 stations.

Solar indices for 05 Aug 2017

Wolf number Catania	///
10cm solar flux	074
AK Chambon La Forêt	028
AK Wingst	021
Estimated Ap	022
Estimated international sunspot number	013 - Based on 38 stations

Noticeable events summary

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

All times in UTC

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