Viewing archive of Sunday, 4 February 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Feb 04 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

	10cm flux	Ap
04 Feb 2018	069	013
05 Feb 2018	069	010
06 Feb 2018	069	007

Bulletin

Solar activity was low, no C-class flares in past 24 h. NOAA 2698 decayed into a plage, no active regions visible. No significant flares are expected in the coming hours.

Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed.

Solar wind speed is at 330 km/s with interplanetary magnetic field magnitude of 4 nT. Geomagnetic conditions have been quiet. The fast speed solar wind coming from the low latitude extension of the northern polar coronal hole (reaching up to 20 degrees north in latitude) could affect the Earth today (but it might as well miss it), unsettled to active conditions can be expected.

Today's estimated international sunspot number (ISN): 000, based on 16 stations.

Solar indices for 03 Feb 2018

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	010
AK Wingst	004
Estimated Ap	004
Estimated international sunspot number	000 - Based on 14 stations

Noticeable events summary

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

All times in UTC

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