Het archief bekijken van zaterdag 23 januari 2021

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2021 Jan 23 1238 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
23 Jan 2021	078	006
24 Jan 2021	078	007
25 Jan 2021	077	010

Bulletin

There are presently three numbered sunspot groups observed on the visible side of the Sun, Catania sunspot groups 66, 67 and 68 (NOAA ARs 2797, 2798, 2799). However, the solar flaring activity is low, and only one B-class flare was reported during last 24 hours. In the coming hours we expect occasional B-class flares while C-class flares are possible but not very probable. The filament eruption in the southern hemisphere of the Sun, observed yesterday at about 10 UT was associated with narrow and slow CME (about 90 degrees width and 230 km/s, respectively). We do not expect this CME will arrive to Earth. During last 24 hours no Earth directed CMEs were observed in coronagraph data, and proton flux levels remained at background values.

Earth is still inside a slow solar wind (about 320 km/s) and the interplanetary magnetic field magnitude is 6 nT. The geomagnetic conditions are presently quiet and we expect them to stay so in the coming hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 033, gebaseerd op 09 stations.

Zon indexen voor 22 Jan 2021

Wolfgetal Catania	039
10cm zonneflux	078
AK Chambon La Forêt	006
AK Wingst	///
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	031 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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