Vaata esmaspäev, 22 aprill 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Apr 22 1049 UTC

SIDC Forecast

Valid from 1230 UTC, 22 Apr 2013 until 24 Apr 2013
Päikesepursked ehk loited

Active (M-class flares expected, probability >= 50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Päikese prootonid

Warning condition

10cm fluxAp
22 Apr 2013109005
23 Apr 2013109004
24 Apr 2013109020

Bulletin

A recurrent coronal hole will influence geomagnetic conditions from April 24 onwards. In the last rotation, this coronal hole increased the solar wind speed up to 550 km/s and resulted in minor storm conditions (Kp=5). The CACTus CME detection software issued yesterday two automated halo CME alerts but these are not Earth-directed. Flaring conditions. NOAA AR 1726 keeps the potential for major flares although its magnetic complexity has decreased in the past 24 hours: a parasitic patch of opposite polarity has disappeared from the leading sunspot. Still M-class flares are likely. Proton >10 MeV fluxes are enhanced since yesterday 09:54 but not cross event thresholds. A warning conditions for more proton flux enhancements has been issued.

Today's estimated international sunspot number (ISN): 065, based on 06 stations.

Solar indices for 21 Apr 2013

Wolf number Catania///
10cm solar flux109
AK Chambon La Forêt007
AK Wingst004
Estimated Ap003
Estimated international sunspot number064 - 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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