Het archief bekijken van zondag 11 maart 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Mar 11 1234 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
11 Mar 2018	068	029
12 Mar 2018	068	011
13 Mar 2018	068	007

Bulletin

Solar X ray flux remained below B level and with no spotted regions on the visible disk chances for any flare occurrences remain very low.

No new Earth directed CMEs have been observed in coronagraph data.

Proton flux levels were at background values and are expected to remain so.

Solar wind showed until around midnight the continued passage of the magnetic cloud leaving the Sun on March 6. While Bz became positive and the magnetic field phi angle showed a further gentle rotation of the magnetic field, Solar wind speed declined to a minimum of 370 km/s by midnight. After midnight, Solar wind increased again to 450 km/s presently, while total magnetic field steadily recovered to a nominal 3nT with Bz variable and the magnetic field phi angle again stable in the positive sector. Further Solar wind perturbations may be encountered in the next 24 hours, with also possibly the arrival of the ejecta of March 7. Afterwards, Solar wind conditions should slowly return to nominal with later the influence of the high speed stream of the elongated coronal hole expected from March 14 onwards.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 1-3). Geomagnetic conditions could still see active periods associated to a possible weak CME arrival, but should mainly be quiet to unsettled from March 12 onwards.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 18 stations.

Zon indexen voor 10 Mar 2018

Wolfgetal Catania	///
10cm zonneflux	068
AK Chambon La Forêt	012
AK Wingst	012
Geschatte Ap	013
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 19 stations

Overzicht opvallende gebeurtenissen

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

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