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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2013 Feb 24 1201 UTC

SIDC Forecast

Sluneční erupce

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
24 Feb 2013	098	003
25 Feb 2013	097	004
26 Feb 2013	097	004

Bulletin

Solar activity has been quiet with three C flares with the largest being a C 4.7 flare peaking at February 23d 15:56 UT. All flares originating from AR Catania 95 (NOAA 11678). A partial halo CME was detected by LASCO C2 on February 23d around 03:24 UT. This CME could possibly result in a glancing blow towards Earth. With an estimated speed of 238 km/s it would arrive on February 27 in the evening. A second partial halo CME was detected by LASCO C2 on February 23d around 18:24, but there is not yet enough information available for detailed analysis. Geomagnetic conditions were quiet and are expected to remain so for the next 48 hours.

Today's estimated international sunspot number (ISN): 017, based on 02 stations.

Solar indices for 23 Feb 2013

Wolf number Catania	///
10cm solar flux	100
AK Chambon La Forêt	013
AK Wingst	012
Estimated Ap	009
Estimated international sunspot number	032 - Based on 10 stations

Noticeable events summary

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

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