Het archief bekijken van woensdag 31 mei 2023

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2023 May 31 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
31 May 2023	162	007
01 Jun 2023	162	010
02 Jun 2023	162	016

Zonnevlekkengebieden en zonnevlammen

There are ten visible active regions on the solar disk. NOAA AR 3315 remains the most complex region, again with beta-gamma-delta magnetic field configuration. It produced the largest flare of the past 24 hours, M1.4 peaking at 13:38 UTC on 30 May. Nevertheless, an active region rotating into view from the east limb is also producing M-class flares and elevating the x-ray background levels. More M-class flares can be expected and X-class flares are possible.

Coronale massa uitstoten

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph imagery.

Coronale gaten

A positive polarity coronal hole in the southern hemisphere crossed the central meridian on 29 May. A related high speed solar wind stream may arrive to the Earth on 2 June.

Zonnewind

The Earth is inside slow solar wind, with an interplanetary magnetic field around 7 nT and solar wind speed of about 380 km/s. Similar conditions are expected for the next 24 hours.

Geomagnetisme

The geomagnetic conditions over the past 24 hours were quiet (K_Belgium and Kp below 3). Mostly quiet geomagnetic conditions are expected for the next 24 hours.

Proton flux niveaus

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so in the next 24 hours.

Elektronenfluxen in geostationaire baan

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

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 171, gebaseerd op 19 stations.

Zon indexen voor 30 May 2023

Wolfgetal Catania	220
10cm zonneflux	162
AK Chambon La Forêt	///
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	161 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

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