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Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2019 Nov 19 1230 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

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

Солнечные протоны

Quiet

	10cm flux	Ap
19 Nov 2019	070	003
20 Nov 2019	070	008
21 Nov 2019	070	018

Bulletin

The solar activity has been at very low levels over the past 24 hours. The Sun is currently spotless and the X-ray flux remains below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values. The solar wind speed has decreased from around 380 to 340 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 2 nT and 4 nT. The Bz component fluctuated around 0 nT, ranging between -4 and +4 nT. Geomagnetic conditions ranged between Kp index 0-1 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours.

Geomagnetic conditions are expected to remain at quiet conditions for today, before possibly enhancing tomorrow, due to the arrival of a high speed stream from a small low latitude positive polarity Coronal Hole.

Today's estimated international sunspot number (ISN): 000, based on 15 stations.

Solar indices for 18 Nov 2019

Wolf number Catania	012
10cm solar flux	070
AK Chambon La Forêt	003
AK Wingst	001
Estimated Ap	001
Estimated international sunspot number	000 - Based on 21 stations

Noticeable events summary

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

Все время в UTC

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