Viewing archive of Thursday, 1 February 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Feb 01 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
01 Feb 2018	069	007
02 Feb 2018	069	007
03 Feb 2018	069	007

Bulletin

Solar activity was low, no C-class flares in past 24 h. NOAA 2697 has decayed from beta to alpha magnetic field configuration, 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 430 km/s with interplanetary magnetic field magnitude of 3 nT. Geomagnetic conditions reached active levels (K = 4) overnight due to the mild effect of the solar wind emanating from equatorial diffuse coronal holes (speeds reaching only 460 km/s and interplanetary magnetic field 9 nT). Quiet to unsettled conditions can be expected in the next 48 h.

Today's estimated international sunspot number (ISN): 000, based on 09 stations.

Solar indices for 31 Jan 2018

Wolf number Catania	013
10cm solar flux	069
AK Chambon La Forêt	013
AK Wingst	007
Estimated Ap	007
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

All times in UTC

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