Het archief bekijken van zaterdag 18 april 2020

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2020 Apr 18 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
18 Apr 2020	068	007
19 Apr 2020	068	004
20 Apr 2020	069	013

Bulletin

There were no sunspot regions on the visible solar disk. Solar activity was at very low levels and is expected to remain so.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal values and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind speed undulated between 290 and 350 km/s (DSCOVR). Bz varied between -6 and +3 nT. The direction of the interplanetary magnetic field (phi angle) was in a mostly sunward orientation (negative sector).

Geomagnetic activity was at quiet levels. Geomagnetic conditions are expected to be quiet to unsettled, with an active interval possible on 20 April in response to the expected wind stream associated with the extension of the negative polarity southern polar coronal hole.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 19 stations.

Zon indexen voor 17 Apr 2020

Wolfgetal Catania	///
10cm zonneflux	068
AK Chambon La Forêt	008
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 31 stations

Overzicht opvallende gebeurtenissen

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

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