Het archief bekijken van woensdag 4 maart 2015

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2015 Mar 04 1225 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
04 Mar 2015	123	016
05 Mar 2015	127	018
06 Mar 2015	130	014

Bulletin

The strongest event of the period was a C4 flare peaking at 13:37UT being produced by NOAA 2290 from behind the NW limb. NOAA 2292 lost its delta, but still has some mixed polarities. The region produced 2 low- level C-class flares. An active region that has been the source of some strong CMEs over the last few days will round the SE limb within the next 1-2 days. No Earth-directed CMEs were observed. C-class flaring is expected. Geomagnetic conditions ranged from quiet to unsettled, with locally (Dourbes) an active episode at the end of the period. Earth has left the high speed stream from the southern polar CH. Solar wind speed gradually decreased from about 500 km/s to a steady 450 km/s after 22:00UT. Since 08:00UT, IMF direction seems to have changed from towards to away, and Bz started to oscillate between -8 and +8 nT. This may be in response to an anticipated sector boundary crossing. A positive CH is transiting the CM and may influence the geomagnetic field around 7 March. Quiet to active geomagnetic conditions are expected.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 036, gebaseerd op 18 stations.

Zon indexen voor 03 Mar 2015

Wolfgetal Catania	050
10cm zonneflux	125
AK Chambon La Forêt	021
AK Wingst	014
Geschatte Ap	015
Geschat internationaal zonnevlekkengetal	033 - Gebaseerd op 20 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina