Het archief bekijken van maandag 26 februari 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Feb 26 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
26 Feb 2018	069	008
27 Feb 2018	070	011
28 Feb 2018	071	006

Bulletin

There are presently no numbered sunspot regions on the visible side of the solar disk. Accordingly, solar activity is extremely low (last B-class flare was reported about a week ago). We expect such a low activity to persist in the coming days. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons remained at the background level.

The solar wind speed is presently about 430 km/s and the interplanetary magnetic field magnitude is 5 nT. In the coming hours we might expect some increase of the solar wind speed, associated with the equatorial coronal hole (possibly connected to the southern polar coronal hole) which reached central meridian in the late evening of February 22. Rather small and patchy equatorial coronal hole reached central meridian this morning. The associated increase of the solar wind speed might be expected in the morning of March 02. The geomagnetic conditions are presently quiet and we expect quiet to unsettled geomagnetic conditions in the coming hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 016, gebaseerd op 19 stations.

Zon indexen voor 25 Feb 2018

Wolfgetal Catania	///
10cm zonneflux	067
AK Chambon La Forêt	011
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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