Viewing archive of Sunday, 26 April 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Apr 26 1235 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
26 Apr 2020	071	010
27 Apr 2020	071	011
28 Apr 2020	071	008

Bulletin

Solar X-ray flux remained below B level. The developing region mentioned already yesterday, now became numbered as NOAA 2760 and developed into a small bipolar region. Solar flaring is overall expected to remain below C level over the next days.

There were no Earth directed Coronal Mass Ejections (CMEs) observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels. The greater than 2 MeV electron flux has remained just slightly enhanced over the past 24 hours.

Solar wind was in a close to nominal regime with Solar wind speed around 400 km/s and total magnetic field around 5nT. Bz was unremarkable and the magnetic field phi angle was stable in the negative sector. Nominal Solar wind conditions are expected over the next days.

Geomagnetic conditions were essentially quiet with some isolated unsettled episodes locally (local K Dourbes 0-3 while NOAA Kp 0-2). Quiet geomagnetic conditions are expected over the next days with isolated unsettled episodes possible.

Today's estimated international sunspot number (ISN): 014, based on 23 stations.

Solar indices for 25 Apr 2020

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	///
AK Wingst	///
Estimated Ap	///
Estimated international sunspot number	007 - Based on 32 stations

Noticeable events summary

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

All times in UTC

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