Viewing archive of Thursday, 20 September 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Sep 20 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
20 Sep 2018	068	004
21 Sep 2018	068	008
22 Sep 2018	067	012

Bulletin

Solar activity is extremely low, without flaring activity reported during last 24 hours. We do not expect change in the level of the flaring activity in the coming hours. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons are at the background level.

The Earth is presently inside the slow solar wind with the speed of about 360 km/s, and the interplanetary magnetic field magnitude is 3 nT. The 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 23 stations.

Solar indices for 19 Sep 2018

Wolf number Catania	012
10cm solar flux	068
AK Chambon La Forêt	005
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	000 - Based on 34 stations

Noticeable events summary

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

All times in UTC

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