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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2019 Jan 21 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
21 Jan 2019	069	006
22 Jan 2019	068	008
23 Jan 2019	067	013

Bulletin

During last 24 hours solar activity was very low with no C-class and even B-class flares reported. As there are no numbered active regions observed on the visible side of the solar disc, we expect such a low flaring activity to persist in the coming hours. The coronagraph images do not show any signatures of the possibly Earth- directed CME. The solar proton flux is at the background level.

The Earth is presently inside the slow solar wind with the speed of about 320 km, and the interplanetary magnetic field magnitude is about 3 nT. The geomagnetic conditions are quiet and we expect them to remain so in the coming hours. The unsettled geomagnetic conditions can be expected starting from the late evening of January 22, due to expected arrival of the fast solar wind from the extended positive polarity equatorial coronal hole which reached central meridian in the morning of January 19.

Today's estimated international sunspot number (ISN): 000, based on 13 stations.

Solar indices for 20 Jan 2019

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	005
AK Wingst	004
Estimated Ap	002
Estimated international sunspot number	000 - Based on 25 stations

Noticeable events summary

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

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