Het archief bekijken van zaterdag 1 juni 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Jun 01 1259 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
01 Jun 2013	102	053
02 Jun 2013	102	015
03 Jun 2013	102	003

Bulletin

During the past 24 hours an M1.0 flare erupted from Catania sunspot group 90 (NOAA AR 1760) at 20:00 UT on May 31. This was associated with type II (speed of 1393 km/s) and type IV radio bursts. No associated strong CMEs were observed at that time. CACTus detected a partial halo CME on May 31 associated with a broad filament eruption on the north (oriented from NE to SW). It involves two successive CMEs: one with signatures in LASCO at 11:48 UT and one starting at 17:24 UT. Both CMEs mainly have a North-ward oriented component and are not oriented to the Earth. C-class flaring activity is expected and there exits a slight chance for an M-class flare. Biggest candidates are Catania sunspot groups 88 and 90. A shock was observed in the solar wind speed on May 31 around 15:30 UT. The speed went up from around 350 km/s to around 650 km/s and also corresponds to a jump in the solar wind temperature and density. On June 1, the interplanetary magnetic field reached a magnitude around 20 nT with Bz component varying between -20 and +15 nT. This is related to the arrival of a corotating- interaction region (CIR) related to the coronal hole (CH). The K index has reached storm levels (K up to 6 measured at Dourbes). We expect the minor storm conditions to continu for today activity will decrease to unsettled to active conditions tomorrow.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 044, gebaseerd op 14 stations.

Zon indexen voor 31 May 2013

Wolfgetal Catania	073
10cm zonneflux	102
AK Chambon La Forêt	044
AK Wingst	012
Geschatte Ap	011
Geschat internationaal zonnevlekkengetal	039 - Gebaseerd op 31 stations

Overzicht opvallende gebeurtenissen

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

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