Viewing archive of Tuesday, 6 December 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Dec 06 1303 UTC

SIDC Forecast

Solar flares

C-class flares expected, (probability >=50%)

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
06 Dec 2016	081	007
07 Dec 2016	080	018
08 Dec 2016	079	013

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a B1.7 class flare. Active Region (AR) 2615 (Mcintosh class:Dai; Mag. type:Beta) has been most active, producing B-class flares. All other ARs have shown low levels of activity. AR 2615 has shown some evidence of flux emergence and cancellation in HMI magnetogram observations, this may increase flaring activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a high probability of C-class flares and a low probability of M-class flares. The solar wind speed has fluctuated between 275 and 350 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 2 nT and 10 nT. The Bz component was largely positive, but turned negative earlier today fluctuating between -10 and +10 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. There are no significant trans-equatorial coronal holes. Geomagnetic conditions are expected to be quiet to unsettled.

Today's estimated international sunspot number (ISN): 033, based on 19 stations.

Solar indices for 05 Dec 2016

Wolf number Catania	///
10cm solar flux	083
AK Chambon La Forêt	///
AK Wingst	005
Estimated Ap	004
Estimated international sunspot number	035 - Based on 30 stations

Noticeable events summary

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

All times in UTC

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