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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Nov 22 1231 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
22 Nov 2016	075	027
23 Nov 2016	075	028
24 Nov 2016	076	017

Bulletin

Solar activity has been very low, no C-class flares in past 24 h. NOAA AR 2610 has rotated over the west limb and NOAA AR 2611 has decayed into a plage, the sun is spotless. Solar activity is expected to remain low.

Proton levels are low and there were no Earth directed CMEs in past 24 h.

Solar wind speed is at 460 km/s with interplanetary magnetic field intensity of 12 nT. Geomagnetic conditions have been quiet, but the rise in speed of more than 100 km/s between yesterday and today, together with increased temperatures and magnetic fields, mark the arrival of the compression region ahead of the expected fast speed stream. There are two coronal holes that will affect the Earth (it was one in the previous rotation, but has now divided and shrank), geomagnetic conditions will increase up to up to minor storm conditions (with possible isolated major storm periods) in the next 48 h.

Today's estimated international sunspot number (ISN): 000, based on 10 stations.

Solar indices for 21 Nov 2016

Wolf number Catania	///
10cm solar flux	075
AK Chambon La Forêt	014
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	000 - Based on 14 stations

Noticeable events summary

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

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