Vaata esmaspäev, 18 märts 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Mar 18 1159 UTC

SIDC Forecast

Valid from 1230 UTC, 18 Mar 2013 until 20 Mar 2013
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Proton event expected (10 pfu at >10 MeV)

10cm fluxAp
18 Mar 2013126016
19 Mar 2013123006
20 Mar 2013123004

Bulletin

Solar activity is eruptive with 6 C-flares in the past 12 hours. Four C-flares originated from NOAA AR1698 and two C-flares came from an unnumbered region near AR1700. Solar activity is expected to remain eruptive for the next 24 hours, mainly caused by AR1698. C-flares are very likely, but there is also a slight chance for an M-flare. AR1698 is approaching the west limb, so if it erupts a proton event is possible. The solar wind is getting stable again; in the past 24 hours the speed has decreased from 750 km/s to about 500 km/s. The interplanetary magnetic field has returned to about 10nT, with a positive Bz-component. Geomagnetic conditions are expected to be quiet for the next 48 hours.

Today's estimated international sunspot number (ISN): 069, based on 08 stations.

Solar indices for 17 Mar 2013

Wolf number Catania///
10cm solar flux126
AK Chambon La Forêt079
AK Wingst056
Estimated Ap059
Estimated international sunspot number080 - Based on 17 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmRadio burst typesCatania/NOAA
Puuduvad

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

Kõik ajad UTC-s

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