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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2019 Dec 25 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
25 Dec 2019	073	007
26 Dec 2019	074	001
27 Dec 2019	075	001

Bulletin

Two active regions visible on the sun (NOAA ARs 2753 and 2754), both with beta magnetic field configuration. Solar activity has been very low, no flares in the past 24 h. C-Class flares are possible although unlikely.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 h.

The solar wind speed is at 350 km/s with interplanetary magnetic field magnitude of 3 nT. Geomagnetic conditions have been quiet. The fast solar wind emanating from a small equatorial negative polarity coronal hole might affect Earth today, but its effect will be weak (mostly unsettled conditions expected, with possible isolated active periods).

Today's estimated international sunspot number (ISN): 025, based on 15 stations.

Solar indices for 24 Dec 2019

Wolf number Catania	///
10cm solar flux	073
AK Chambon La Forêt	///
AK Wingst	001
Estimated Ap	001
Estimated international sunspot number	018 - Based on 18 stations

Noticeable events summary

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

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