Het archief bekijken van donderdag 28 augustus 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Aug 28 1132 UTC

SIDC Prognose

Zonnevlammen

Eruptive (C-class flares expected, probability >=50%)

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
28 Aug 2014	120	024
29 Aug 2014	118	007
30 Aug 2014	118	014

Bulletin

Only two small C-class flares were observed in the past period. All active regions at the frontside are relatively stable. No Earth directed CMEs were observed. Flaring activity is expected to remain at the level of C-flares. A equatorial coronal hole has crossed the central meridian, which is likely to influence the solar wind conditions near Earth starting on August 30. The magnitude of the interplanetary magnetic field declined from 15 to 9 nT, with Bz mainly being southward. The solar wind speed is fluctuating between 300 and 380 km/s. Geomagnetic activity reached active levels (local K=4 at Dourbes), with even an single time slot of minor storm level (NOAA Kp=5). A return to quiet to unsettled conditions is expected, till the potential arrival of a shock related to the August 25 CMEs later today.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 062, gebaseerd op 10 stations.

Zon indexen voor 27 Aug 2014

Wolfgetal Catania	///
10cm zonneflux	123
AK Chambon La Forêt	038
AK Wingst	020
Geschatte Ap	021
Geschat internationaal zonnevlekkengetal	069 - Gebaseerd op 19 stations

Overzicht opvallende gebeurtenissen

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

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