Prohlížíte si archiv pátek 5. dubna 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2013 Apr 05 1215 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
05 Apr 2013	132	003
06 Apr 2013	133	007
07 Apr 2013	133	007

Bulletin

Solar activity has been eruptive during the past 24 hours, with a C2.1 flare produced by returning NOAA AR 11695 on the East limb, which peaked around 06:50 UT on April 5. More C flares are expected within the next 48 hours, with a slight chance for an M flare, especially from NOAA AR 11695 and 11713. A filament centered close to 25S45W erupted around 22:12 UT on April 4. The corresponding CME was observed in LASCO C2 and COR2 A imagery, but is not expected to arrive at Earth. Geomagnetic activity was at quiet levels (NOAA Kp between 0 and 1) during the past 24 hours. Quiet (K Dourbes < 4) conditions are predicted for April 4 to 6 with a slight chance for active periods.

Today's estimated international sunspot number (ISN): 078, based on 05 stations.

Solar indices for 4 Apr 2013

Wolf number Catania	095
10cm solar flux	129
AK Chambon La Forêt	006
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	065 - Based on 15 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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