Het archief bekijken van donderdag 27 februari 2020

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2020 Feb 27 1231 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
27 Feb 2020	071	010
28 Feb 2020	071	006
29 Feb 2020	071	004

Bulletin

Solar activity was at very low levels. The Sun is still spotless, but this may change as two small active regions at resp. latitudes S10 and N25 are about to rotate over the east limb as seen in SDO/AIA and STEREO-A/EUVI imagery. No earth-directed coronal mass ejections (CMEs) have been observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values. Some small and patchy equatorial coronal holes (CHs) are present on the solar disk.

Solar activity is expected to remain at very low levels.

Solar wind conditions were at background levels. Solar wind speed varied steadily between 330 and 370 km/s (ACE). Bz undulated between -5 and +5 nT. The direction of the interplanetary magnetic field (phi angle) was variable. Geomagnetic conditions were at quiet levels, with an unsettled episode (09-12UT) recorded at Dourbes.

Geomagnetic activity is expected to remain mostly at quiet levels, with an isolated unsettled interval remaining possible.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 13 stations.

Zon indexen voor 26 Feb 2020

Wolfgetal Catania	000
10cm zonneflux	070
AK Chambon La Forêt	009
AK Wingst	005
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 24 stations

Overzicht opvallende gebeurtenissen

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

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