Het archief bekijken van woensdag 20 januari 2021

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2021 Jan 20 1230 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
20 Jan 2021	078	006
21 Jan 2021	076	006
22 Jan 2021	076	006

Bulletin

During last 24 hours the solar flaring activity slightly increased. Several B-class and an isolated C-class flares were reported, all originating from the NOAA AR 2797. The impulsive C1.0 flare peaked at 17:54 UT on January 19. Presently available coronagraph observations (there is a large data gap in observations) do not show signatures of the possibly associated CME. We expect such a level of flaring activity to persist in the coming hours. During last 24 hours no Earth directed CMEs were observed in coronagraph data, and proton flux levels remained at background values.

The solar wind speed is presently around 340 km/s and the interplanetary magnetic field magnitude is about 6 nT. The geomagnetic conditions are presently quiet and we expect quiet to unsettled geomagnetic conditions in the coming hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 019, gebaseerd op 13 stations.

Zon indexen voor 19 Jan 2021

Wolfgetal Catania	025
10cm zonneflux	078
AK Chambon La Forêt	007
AK Wingst	///
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	017 - Gebaseerd op 16 stations

Overzicht opvallende gebeurtenissen

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

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