Het archief bekijken van maandag 30 september 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Sep 30 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
30 Sep 2019	067	019
01 Oct 2019	067	016
02 Oct 2019	067	011

Bulletin

Solar activity was at very low levels. The Sun was spotless again. 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.

Solar activity is expected to remain at very low levels.

Solar wind speed declined from initial values around 530 km/s to 440 km/s at the end of the period (ACE). Bz was weakly but almost continuously negative with sustained values near -5 nT. These solar wind conditions resulted in some active geomagnetic intervals in both Kp and K Dourbes. The interplanetary magnetic field (phi angle) was mostly directed away from the Sun (positive sector).

Geomagnetic activity is expected to be mostly at quiet to unsettled levels, as the Earth remains under the gradually weakening influence from the coronal hole wind stream. There remains a chance on an active episode.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 25 stations.

Zon indexen voor 29 Sep 2019

Wolfgetal Catania	///
10cm zonneflux	067
AK Chambon La Forêt	030
AK Wingst	014
Geschatte Ap	016
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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