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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Nov 13 1230 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
13 Nov 2015	102	008
14 Nov 2015	102	010
15 Nov 2015	101	012

Bulletin

Over the past 24 hours solar activity has been low, there has been one C-class flare recorded. An as yet unnamed region, located at S17E48 produced the largest flare, a C1.2 class flare, which peaked at 01:28 UT on 2015-Nov-13. NOAA Active Regions (ARs) 2448 and 2449 appear stable with small amounts of flux emergence. There were no Earth directed Coronal Mass Ejections (CMEs) observed over the past 24 hours. The solar wind speed has steadily declined over the past 24 hours, from around 500 km /s to around 400 km /s. The total magnetic field been slowly growing from around 2 nT to 10 nT over the past 24 hours. The Bz component has oscillated between -5 nT and +4 nT over the past 24 hours, but has been largely negative throughout this morning (2015-Nov-13). Geomagnetic conditions have been mainly quiet over the past 24 hours (NOAA Kp 1-2, local K Dourbes 1-2). A small coronal hole (W40S20) may increase solar wind speeds later today.

Today's estimated international sunspot number (ISN): 051, based on 19 stations.

Solar indices for 12 Nov 2015

Wolf number Catania	078
10cm solar flux	104
AK Chambon La Forêt	009
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	064 - Based on 26 stations

Noticeable events summary

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

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