Vaata laupäev, 24 august 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Aug 24 1232 UTC

SIDC Forecast

Valid from 1230 UTC, 24 Aug 2013 until 26 Aug 2013
Päikesepursked ehk loited

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Päikese prootonid

Quiet

10cm fluxAp
24 Aug 2013118024
25 Aug 2013120028
26 Aug 2013122006

Bulletin

Solar activity was very low, featuring only 2 C-class flares (C1.0 and C1.4), with a source region near NOAA AR 1830. All active regions were quite stable. Solar activity is expected to be low, with a slight chance for C-class flares. No Earth directed CMEs were observed. ACE observed a small shock in the solar wind data at 00h00 UT this night, indicating the arrival of a CME, possibly that of 20 or 21 August. Solar wind speed currently is around 500 km/s. The magnitude of the interplanetary magnetic field had a maximum of 9 nT, with a Bz component fluctuating between +5 and -5 nT. Current geomagnetic conditions are unsettled. We expect unsettled to minor storm levels for the next 48 hours, related to the CME arrival, possibly combined with some minor influence of a coronal hole fast speed stream.

Today's estimated international sunspot number (ISN): 051, based on 04 stations.

Solar indices for 23 Aug 2013

Wolf number Catania///
10cm solar flux124
AK Chambon La Forêt019
AK Wingst018
Estimated Ap018
Estimated international sunspot number094 - Based on 22 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

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