Het archief bekijken van dinsdag 2 oktober 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Oct 02 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
02 Oct 2018	070	007
03 Oct 2018	069	010
04 Oct 2018	068	010

Bulletin

One active region visible on the solar disc, NOAA 2723 with beta magnetic field configuration. No C-class flares in past 24 h. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 480 km/s with interplanetary magnetic fields of 5 nT. Geomagnetic conditions reached active levels between 15:00 UT and 17:00 UT on October 1 at Dourbes (K=4), at planetary levels Kp reached 4 between 12:00 UT and 15:00 UT on October 1 and between 00:00 UT and 03:00 UT on October 2. This was due to solar wind of relatively high speed (reaching 530 km/s) with interplanetary magnetic fields up to 10 nT with oscillating periods including negative Bz. Quiet to unsettled conditions for the coming hours are foreseen. The fast solar wind associated with a small negative polarity equatorial coronal hole is expected to arrive on October 4 (or late on October 3), causing up to active geomagnetic conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 014, gebaseerd op 14 stations.

Zon indexen voor 01 Oct 2018

Wolfgetal Catania	017
10cm zonneflux	070
AK Chambon La Forêt	021
AK Wingst	012
Geschatte Ap	011
Geschat internationaal zonnevlekkengetal	017 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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