Het archief bekijken van donderdag 29 maart 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Mar 29 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Minor storm expected (A>=30 or K=5)

Proton Flux monitor

Quiet

	10cm flux	Ap
29 Mar 2018	070	016
30 Mar 2018	070	017
31 Mar 2018	070	016

Bulletin

There are no sunspot regions on the visible hemisphere of the Sun but the loops of a far side active region are rotating into view at the East limb. Flaring level is very low. The chance for a C flare in the next 24 hours is estimated at 10%, mainly from the region behind the East limb.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed measured by DSCOVR further decreased from about 430 to 340 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly directed towards the Sun and its magnitude varied between about 0 and 6 nT. There were no prolonged intervals with Bz below -5 nT.

Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 1) were registered in the past 24 hours. Due to the expected arrival of a high speed stream from a positive polarity, northern polar coronal hole, active geomagnetic levels (K Dourbes = 4) are possible on March 29, 30 and 31, with a chance for minor storm intervals (K Dourbes = 5).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 17 stations.

Zon indexen voor 28 Mar 2018

Wolfgetal Catania	000
10cm zonneflux	069
AK Chambon La Forêt	004
AK Wingst	002
Geschatte Ap	002
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

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

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