Het archief bekijken van woensdag 22 maart 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Mar 22 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
22 Mar 2017	073	024
23 Mar 2017	075	024
24 Mar 2017	075	024

Bulletin

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. Over the past 24 hours, solar wind speed measured by DSCOVR increased further to current values of about 720 km/s. Meanwhile the magnitude of the Interplanetary Magnetic Field has varied between 5 and 14 nT. Bz was below -5 nT between 14:15 and 15:00 UT on March 21, and fluctuated a lot in the rest of the period. Quiet to minor storm conditions (K Dourbes between 2 and 5; NOAA Kp between 3 and 5) were registered in the past 24 hours due to the enhanced solar wind conditions caused by the passage of a high speed stream from a positive coronal hole. The minor geomagnetic storm intervals occurred between 15h and 21h UT. Continued influence from the high speed stream is expected on March 22 and 23, with quiet to active geomagnetic levels (K Dourbes < 5) and a chance for minor geomagnetic storm intervals (K Dourbes = 5). On March 24, active periods (K Dourbes = 4) are possible as waning high speed stream influence is expected.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 013, gebaseerd op 14 stations.

Zon indexen voor 21 Mar 2017

Wolfgetal Catania	013
10cm zonneflux	071
AK Chambon La Forêt	043
AK Wingst	032
Geschatte Ap	030
Geschat internationaal zonnevlekkengetal	012 - Gebaseerd op 17 stations

Overzicht opvallende gebeurtenissen

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

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