Het archief bekijken van woensdag 18 februari 2015

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2015 Feb 18 1232 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
18 Feb 2015	120	017
19 Feb 2015	125	006
20 Feb 2015	130	008

Bulletin

The solar activity was very low. Regions NOAA 2284 and 2285 were decaying further, while NOAA 2282 was stable. Flaring activity is expected to remain low, with some chance for C-flares during the next two days. No CMEs Earth directed CMEs were observed. The interplanetary magnetic field was enhanced but with a decreasing magnitude from 14 to 5 nT. The Bz component mostly was negative. The disturbance starting at 9:40 UT on 16th of February possibly is related to a equatorial CH that passed the central meridian on the 11th of February. The solar wind speed steadily increased from about 400 to 470 km/s. Geomagnetic conditions were unsettled, with a several time slots of active conditions (K=4) at the global and local level (after 18 UT on the 17th and at 3 and 4 UT on the 18th of February at the local level at Dourbes). Geomagnetic conditions are expected to return to quiet to unsettled levels for the next 48 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 060, gebaseerd op 10 stations.

Zon indexen voor 17 Feb 2015

Wolfgetal Catania	///
10cm zonneflux	119
AK Chambon La Forêt	038
AK Wingst	021
Geschatte Ap	023
Geschat internationaal zonnevlekkengetal	021 - Gebaseerd op 24 stations

Overzicht opvallende gebeurtenissen

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

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