Het archief bekijken van donderdag 21 november 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Nov 21 1222 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	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).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 051, gebaseerd op 08 stations.

Zon indexen voor 20 Nov 2013

Wolfgetal Catania	074
10cm zonneflux	///
AK Chambon La Forêt	005
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	056 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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