Het archief bekijken van dinsdag 18 februari 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Feb 18 1324 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10cm flux	Ap
18 Feb 2014	152	007
19 Feb 2014	153	007
20 Feb 2014	155	008

Bulletin

Flaring activity has been in the C-class level in past 24h. NOAA AR 1976 produced the strongest one, a C4.7 flare with peak at 01:33 UT. The complex formed by NOAA ARs 1976, 1977 and 1980 continues to produce C-class flares. NOAA AR 1974 is rotating over the west limb, but has still potential to produce M-class flares. Therefore the warning condition for energetic protons is maintained. A full halo CME erupted at 01:25 UT (first seen by LASCO-C2) as a consequence of a filament eruption in the southeast of the visible solar disc. The bulk of the CME is directed to the southeast, but it can reach the Earth. The calculated speed is 663 km/s, giving an arrival time of February 20, at 20:00 UT (with a ~12h error margin). Geomagnetic conditions are quiet and expected to remain so. There is still a small possibility that the CME from February 13 arrives to the Earth and cause unsettled to active conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 093, gebaseerd op 07 stations.

Zon indexen voor 17 Feb 2014

Wolfgetal Catania	131
10cm zonneflux	152
AK Chambon La Forêt	010
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	078 - Gebaseerd op 14 stations

Overzicht opvallende gebeurtenissen

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

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