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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Nov 06 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Sluneční protony

Quiet

	10cm flux	Ap
06 Nov 2016	077	006
07 Nov 2016	076	007
08 Nov 2016	075	033

Bulletin

Solar activity was very low in the past 24 hours. No flares were observed. A partial halo CME is visible in SoHO/LASCO C2 images from 00:00 UT onwards on November 5. The ejection is mostly directed towards the North-East and has an angular extent of 200 degrees. The speed is measured to be at most 400 km/s. The origin of the event is most likely be related to the filament eruption around 00:00 UT November 5, in the North-Western quadrant. 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 low probability of C-class flares. Variations of the solar wind parameters were very low. Solar wind speed decreased from about 365 km/s to its current values near 315 km/s. Total Interplanetary Magnetic Field (IMF) strength fluctuated between 4.7 nT and 5.5 nT, while Bz fluctuated between +3.2 nT and -3.1 nT. As the result the geomagnetic conditions have been low in the past 24 hours, (K Dourbes between 0 and 3; NOAA Kp between 0 and 2). The geomagnetic environment is expected to continue at low levels today (November 6) and tomorrow (November 7). However, late on the day three (November 8) or the day four (November 9, early in the morning) Earth may experience the passage of the flanks of the CME. Given the low speed and the direction of the CME effects are estimated not to be very strong with possibly minor up to moderate geomagnetic storms.

Today's estimated international sunspot number (ISN): 024, based on 10 stations.

Solar indices for 05 Nov 2016

Wolf number Catania	///
10cm solar flux	077
AK Chambon La Forêt	005
AK Wingst	002
Estimated Ap	001
Estimated international sunspot number	026 - Based on 18 stations

Noticeable events summary

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

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