Viewing archive of Sunday, 26 May 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 May 26 1203 UTC

SIDC Forecast

Valid from 1230 UTC, 26 May 2013 until 28 May 2013
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
26 May 2013123017
27 May 2013125007
28 May 2013125007

Bulletin

Only 2 C-class flares were recorded in the last 24 hours. Solar activity is expected to remain eruptive. A M-class flare is still possible. Solar wind speed is currently around 700 km/s, but the interplanetary magnetic field Bz component is around 0 nT. Geomagnetic activity has reached active to storm levels in the last 24 hours, but is expected to calm down to quiet levels in the evening of May 26th. It is expected to remain quiet for the next 48 hours.

Today's estimated international sunspot number (ISN): 067, based on 08 stations.

Solar indices for 25 May 2013

Wolf number Catania///
10cm solar flux121
AK Chambon La Forêt047
AK Wingst033
Estimated Ap037
Estimated international sunspot number078 - Based on 20 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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