Het archief bekijken van dinsdag 29 april 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Apr 29 1222 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
29 Apr 2014	122	011
30 Apr 2014	125	006
01 May 2014	125	005

Bulletin

Five sunspot regions are visible at the front side of the solar disk. Catania sunspot group 34 (NOAA AR 2049) showed some growth. All other groups were stable. One C3.4 flare was measured by GOES (peak time 15:26 UT on 28 April), originating from Catania sunspot group 31 (NOAA AR 2048). More C-class flares are possible during the next 48 hours. No Earth- directed CMEs were observed. Solar wind speed has declined to only 280 km/s. The magnitude of the interplanetary magnetic field is currently lower than 5 nT. Geomagnetic conditions were quiet and are expected to remain as such. An isolated time slot of active conditions is still possible at arrival of a high speed stream related to the coronal hole that passed the central meridian early on 24 April.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 052, gebaseerd op 11 stations.

Zon indexen voor 28 Apr 2014

Wolfgetal Catania	093
10cm zonneflux	121
AK Chambon La Forêt	008
AK Wingst	006
Geschatte Ap	007
Geschat internationaal zonnevlekkengetal	058 - Gebaseerd op 14 stations

Overzicht opvallende gebeurtenissen

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

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