Het archief bekijken van zondag 11 februari 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Feb 11 1303 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
11 Feb 2018	078	002
12 Feb 2018	079	003
13 Feb 2018	078	005

Bulletin

Solar activity slightly increased during the period. NOAA 2699 active region, in spite of decaying magnetic configuration, produced multiple B-class flares and one C4.6 flare peaking at 13:21 UT yesterday. Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed. C-class flares (and with a tiny chance M-class flares) are still expected. Solar wind speed is currently at 315 km/s with interplanetary magnetic field magnitude of 2.5 nT. Geomagnetic conditions have been very quiet. The fast speed solar wind coming from the transient low latitude negative polarity coronal hole will affect the Earth environment in 4-5 days from now. Mostly quiet geomagnetic conditions are expected in the next 3 days. Isolated episodes of unsettled conditions are not excluded due to occasional passages of transient features.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 030, gebaseerd op 12 stations.

Zon indexen voor 10 Feb 2018

Wolfgetal Catania	///
10cm zonneflux	078
AK Chambon La Forêt	009
AK Wingst	008
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	027 - Gebaseerd op 13 stations

Overzicht opvallende gebeurtenissen

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

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