Het archief bekijken van dinsdag 20 augustus 2024

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2024 Aug 20 1232 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
20 Aug 2024	240	006
21 Aug 2024	235	007
22 Aug 2024	235	008

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was moderate over the past 24 hours. The largest flare was a M3.7-flare, with peak time 21:52 UTC on August 19 2024, from NOAA AR 3796 (beta-gamma). There are currently 11 numbered active regions on the visible disk. NOAA AR 3784 is the most complex AR (beta-gamma-delta). The solar flaring activity is expected to be at moderate levels for the next 24 hours with C-class flares expected and M-class flares probable and a chance of X-class flares.

Coronale massa uitstoten

No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images.

Coronale gaten

A small negative polarity mid-latitude coronal hole started to cross the central meridian in the northern hemisphere. A high-speed stream from this coronal hole may enhance the solar wind environment near Earth on August 23.

Zonnewind

The solar wind at the Earth remained slow over the last 24 hours. The solar wind speed decreased from around 400 km/s to around 350 km/s and the interplanetary magnetic field was stable around 7nT. The Bz reached a minimum value of -6nT. Slow solar wind conditions are expected in the next 24h.

Geomagnetisme

Geomagnetic conditions were globally and locally quiet to unsettled (Kp 3+ and K Bel 3). Quiet conditions are expected in the next 24 hours.

Proton flux niveaus

The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold, and is expected to remain below the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 221, gebaseerd op 22 stations.

Zon indexen voor 19 Aug 2024

Wolfgetal Catania	204
10cm zonneflux	239
AK Chambon La Forêt	024
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	232 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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