Archiv von Donnerstag, 21 November 2013 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2013 Nov 21 1222 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
21 Nov 2013	140	001
22 Nov 2013	138	001
23 Nov 2013	138	001

Bulletin

NOAA AR 1893 produced a M1.2 flare on November 21, peaking at 1111 UT. Very few information is currently available on this event, but it seems that, besides a weak type III burst no other radio emission is associated with it. Coronagraphic observations are not yet available, but SDO data hint at a CME signature. Owing to the position of AR 1893 on the west limb, a CME, if confirmed, would very likely not be geoeffective. We foresee mostly eruptive conditions for the next 48 hours, with C class flares possible from NOAA ARs 1893, 1897 and 1899. A small sunspot group emerged north of AR 1899, but it is too soon to evaluate its flaring capacity for the forecast period. An extra isolated M flare is not completely excluded from NOAA AR 1893 before it rotates behind the west limb. We expect quiet geomagnetic conditions for the next 48 hours. All CMEs observed in the past 24 hours appear to be non geoeffective, including a partial halo CME, observed by LASCO on Nov. 21 at 0125 UT (backside event).

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 051, basierend auf 08 Stationen.

Solarindizes für den 20 Nov 2013

Wolf-Zahl Catania	074
10cm Solarflux	///
AK Chambon La Forêt	005
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	056 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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