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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2013 May 25 1126 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
25 May 2013	127	013
26 May 2013	125	007
27 May 2013	128	007

Bulletin

Solar activity has been eruptive featuring several C-class flares in the last 24 hours. It is expected to remain so for the next 24 hours, although AR NOAA 1755 and 1756 have a possibility in producing a M-class flare. Proton levels have just dropped below the 10.0 pfu treshold for the 10 MeV particles. Geomagnetic activity has reached storm levels (K=5) around 18:00 UT on May 24th. Presumably this was related to the CME of May 22d. Geomagnetic activity is expected to be quiet for the next 48 hours.

Today's estimated international sunspot number (ISN): 080, based on 16 stations.

Solar indices for 24 May 2013

Wolf number Catania	117
10cm solar flux	127
AK Chambon La Forêt	037
AK Wingst	028
Estimated Ap	027
Estimated international sunspot number	075 - Based on 16 stations

Noticeable events summary

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

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