Het archief bekijken van donderdag 16 april 2020

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2020 Apr 16 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
16 Apr 2020	069	007
17 Apr 2020	069	008
18 Apr 2020	068	007

Bulletin

The visible solar disk has been devoid of sunspots. 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 over the last 48 hours. An extension of the southern polar coronal hole is transiting the central meridian.

Solar wind speed undulated between mostly 400 and 450 km/s, then decreased after 05UT to its current values around 365 km/s (DSCOVR). Bz varied between -3 and +4 nT, being mostly negative between 18 and 05UT. The direction of the interplanetary magnetic field (phi angle) was in a predominantly sunward orientation (negative sector).

Geomagnetic activity was at quiet levels. Geomagnetic conditions are expected to be quiet to unsettled during the next few days.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 27 stations.

Zon indexen voor 15 Apr 2020

Wolfgetal Catania	///
10cm zonneflux	068
AK Chambon La Forêt	008
AK Wingst	007
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 35 stations

Overzicht opvallende gebeurtenissen

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

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