Viewing archive of Sunday, 8 February 2026

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2026 Feb 08 1231 UTC

SIDC Forecast

Solar flares

M-class flares expected (probability >=50%)

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
08 Feb 2026	169	013
09 Feb 2026	169	013
10 Feb 2026	169	007

Solar Active Regions and flaring

A total of 9 numbered sunspot groups were identified on the disk over the past 24 hours. There were two M-class flares in the last 24 hours. Both flares occurred close in time, the first one was an M1.8 peaking on February 8 at 11:18 UTC and the second one was an M1.7 on February 8 at 11:43 UTC. Both were produced by SIDC Sunspot Group 784 (NOAA Active Region 4366) currently located at N13W45 with a Beta-Gamma-Delta magnetic configuration. This region remains the largest and most complex on disk. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely.

Coronal mass ejections

No Earth directed CMEs were observed in the past 24 hours.

Coronal holes

There are two equatorial coronal holes on the equator and on the western hemisphere: SIDC Coronal Hole 136 and 149 (equatorial coronal holes with a negative polarity). SIDC Coronal Hole 142 (mid-latitude coronal hole with a negative polarity) is also on the west, but at higher latitudes.

Solar wind

The solar wind speed at Earth is at 450 km/s. The interplanetary magnetic field is around 6 nT. In the coming 24 hours, the solar wind speed is expected to increase due to the influence of coronal hole associated high speed streams (from SIDC 149 and probably also 142).

Geomagnetism

Geomagnetic conditions have reached active periods at planetary levels in the last 24 hours (Kp up to 4), and only unsettled locally (K_Bel up to 3). Similar unsettled to active conditions can be expected for the next 24 hours.

Proton flux levels

The greater than 10 MeV proton flux remained below the 10 pfu threshold in the last 24 hours. Similar conditions can be expected for the next 24 hours.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux as measured by GOES 19 was above the threshold between 12:00 UTC and 23:00 UTC on 7 February and GOES 18 between 14:00 UTC on 7 February and 02:00 UTC on 8 February. The flux is expected to remain below the threshold for the next 24 hours. The 24-hour electron fluence was at normal levels and is expected to remain so.

Today's estimated international sunspot number (ISN): 150, based on 11 stations.

Solar indices for 07 Feb 2026

Wolf number Catania	///
10cm solar flux	169
AK Chambon La Forêt	026
AK Wingst	017
Estimated Ap	018
Estimated international sunspot number	140 - 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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