Viewing archive of Saturday, 25 January 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Jan 25 1231 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
25 Jan 2020	071	003
26 Jan 2020	072	003
27 Jan 2020	072	003

Bulletin

Solar activity was at very low levels. No significant flares have been recorded. There is a magnetically simple sunspot group at N04E25 on the solar disk that emerged on Jan 24 (NOAA Active Region 2757). No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10 MeV proton flux was at nominal values. Solar activity is expected to remain at very low levels.

The solar wind speed ranged between 280 and 340 km/s (ACE). The total magnetic field remained stable with values around 4 nT. Bz varied between -4 and +4 nT. The interplanetary magnetic field (phi angle) was predominantly directed away from the Sun (positive sector), with some short deviations into the negative sector.

Geomagnetic activity was quiet, with the Kp index (NOAA) and the local k index (Dourbes) recording values of between 0 and 2. Quiet conditions are expected on Jan 25-27.

Today's estimated international sunspot number (ISN): 011, based on 05 stations.

Solar indices for 24 Jan 2020

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	005
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	011 - Based on 12 stations

Noticeable events summary

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

All times in UTC

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