Het archief bekijken van vrijdag 21 november 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Nov 21 1204 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
21 Nov 2014	170	015
22 Nov 2014	172	015
23 Nov 2014	174	016

Bulletin

Six C-class flares were detected on the Sun in the past 24 hours: four in the NOAA AR 2209 and two in the NOAA AR 2216. The strongest flare was the C2.5 flare peaking at 19:56 UT yesterday in the NOAA AR 2209. It was not associated with a CME. The NOAA AR 2209 maintains the beta-gamma- delta configuration of its photospheric magnetic field, so we expect flaring activity on the C-level from this region as well as from the NOAA AR 2216, with an isolated M-class flare possible but unlikely. A long filament in the northern hemisphere is approaching the solar central meridian. Its eruption may lead to an Earth-directed CME. The Earth is currently inside a slow (around 380 km/s) solar wind flow with slightly elevated (7-8 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are expected to stay at the quiet to unsettled level (K < 4) with isolated intervals of active conditions (K = 4).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 046, gebaseerd op 11 stations.

Zon indexen voor 20 Nov 2014

Wolfgetal Catania	121
10cm zonneflux	168
AK Chambon La Forêt	021
AK Wingst	016
Geschatte Ap	013
Geschat internationaal zonnevlekkengetal	045 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

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

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