Viewing archive of Monday, 24 August 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Aug 24 1234 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
24 Aug 2020	072	006
25 Aug 2020	072	017
26 Aug 2020	072	017

Bulletin

Solar X-ray flux has been below background (B) level throughout the period. There are no spotted regions on disc and X-ray flux is expected to remain at or below background (B) values.

There were no Earth directed coronal mass ejections observed in coronagraph data.

The greater than 10 MeV proton flux was at background levels over the past 24 hours. It is expected to stay at background levels for the next 24 hours. The greater than 2 MeV electron flux was at nominal levels over the past 24 hours and is expected to remain so over the next 24 hours.

Solar wind conditions were slightly elevated. Solar wind speed reached a maximum of 415 km/s and remained at around 400 km/s during the remainder of the period. The magnetic field strength was enhanced at the start of the period but soon decreased to below 5nT and remained at that level. The magnetic field phi angle was mainly in the towards sector. Solar wind conditions may become more significantly enhanced over the next 48 hours due the possible influence of a high speed stream from the extension of the Northern (positive polarity) polar coronal hole. It remains to be seen to what extent this will set through.

Geomagnetic conditions were quiet to unsettled (both NOAA Kp and local K Dourbes 0-3). Geomagnetic conditions are expected to be mostly quiet to unsettled, with some isolated active periods not excluded depending on the strength of the expected Solar wind enhancements.

Today's estimated international sunspot number (ISN): 000, based on 18 stations.

Solar indices for 23 Aug 2020

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	011
AK Wingst	011
Estimated Ap	010
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

All times in UTC

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