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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2020 Jan 19 1236 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
19 Jan 2020	072	004
20 Jan 2020	071	007
21 Jan 2020	071	008

Bulletin

During last 24 hours, solar flaring activity remained to be very low, without any flares reported. We expect such a low level of flaring activity to persist in the coming hours. A faint CMEs was observed by SOHO/LASCO C2 at about 22:00 UT on January 18, rising above the east solar limb observed. The source region of the eruption is presently unclear, but from the coronagraph observations it seems that the CME is not Earth- directed. During last 24 hours the solar proton flux remained at the background level.

The solar wind speed is fluctuating between 320 and 340 km/s during last 48 hours, and the interplanetary magnetic field magnitude is 3 nT. The solar wind originating from the patchy coronal hole that reached central meridian in the morning of January 16 might be expected at the Earth in the second half of the January 20. Presently geomagnetic conditions are quiet and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 18 Jan 2020

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	004
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	000 - Based on 27 stations

Noticeable events summary

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

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