Het archief bekijken van maandag 11 maart 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Mar 11 1250 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 2019	071	007
12 Mar 2019	071	035
13 Mar 2019	071	013

Bulletin

The only region on disk: Catania group 9 (NOAA region 2734) was quiet and seems to be in decay. Overall probability for flaring at C level remains low.

No new CME's have been detected in coronagraph data.

The Solar proton flux levels were at background values and expected to remain so.

An equatorial negative polarity coronal hole has passed the central meridian overnight, with it's fast speed stream expected to become geo- effective from midnight March 13/14.

Solar wind conditions mainly continued to be in decay with solar wind speed decreasing from around 400 km/s to currently around 350 km/s. Total magnetic field was at a nominal 5-6nT with a varying Bz. The phi angle was in the negative sector until around 15:40UT when it switched into the positive sector. Solar wind conditions are expected to become enhanced with the arrival of the March 8 CME by noon tomorrow March 12. Given the slow speed of the CME, it's effects on the solar wind conditions may well remain limited though.

Geomagnetic conditions were quiet (both NOAA Kp and local K Dourbes 0-2) but may become enhanced with the expected CME arrival. Active conditions must thus be anticipated with a possibility of minor geomagnetic storms occurring.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 012, gebaseerd op 21 stations.

Zon indexen voor 10 Mar 2019

Wolfgetal Catania	///
10cm zonneflux	071
AK Chambon La Forêt	004
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	011 - Gebaseerd op 22 stations

Overzicht opvallende gebeurtenissen

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

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