Viewing archive of Thursday, 4 January 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jan 04 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
04 Jan 2018	070	007
05 Jan 2018	071	007
06 Jan 2018	070	007

Bulletin

The solar activity was quiet over the past 24 hours and no flare has been recorded. Quiet flaring conditions are expected for the next 24-hour period as the visible solar disc is spotless.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

The solar wind conditions were within the slow solar wind stream over the past 24 hours. The solar wind speed was ranging between 350 and 400 km/s. The interplanetary magnetic field magnitude was below 5 nT, and the Bz competent was ranging from -4 to 4 nT. The solar wind conditions are expected to remain nominal for the next following 24-hour period.

The geomagnetic conditions were quiet and it is expected to remain quiet as the Earth is within the slow solar wind stream.

Today's estimated international sunspot number (ISN): 012, based on 06 stations.

Solar indices for 03 Jan 2018

Wolf number Catania	000
10cm solar flux	071
AK Chambon La Forêt	005
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	000 - Based on 18 stations

Noticeable events summary

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

All times in UTC

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