Het archief bekijken van donderdag 9 april 2015

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2015 Apr 09 1233 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Minor storm expected (A>=30 or K=5)

Proton Flux monitor

Quiet

	10cm flux	Ap
09 Apr 2015	106	020
10 Apr 2015	106	013
11 Apr 2015	106	007

Bulletin

Beta-delta region NOAA AR 2320 released one M flare and one C flare during the past 24 hours. The M1.4 flare peaked at 14:43 UT on April 8 and was associated to a dimming. No corresponding CME was observed in LASCO imagery. In the next 24 hours, M flaring is possible, with a slight chance for an X flare, especially from AR 2320. A small shock in the solar wind was observed by ACE around 1:10 UT on April 9. Solar wind speed jumped from about 340 to 370 km/s, while the Interplanetary Magnetic Field (IMF) magnitude jumped from about 4 to 6 nT and the solar wind density from 3 to 8 particles/cc. This is possibly related to the arrival of the partial halo CME of April 4. A second shock in the solar wind was observed by ACE around 9:12 UT. Solar wind speed jumped from about 350 to 380 km/s, while the magnitude of the IMF jumped from about 6 to 10 nT. This is possibly related to a glancing blow from the CME of April 6. Over the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 1 and 3; NOAA Kp between 1 and 3). There is a chance for active to minor storm geomagnetic levels (K Dourbes = 4-5) on April 9 as a result of a glancing blow from the CME of April 6. Quiet to active geomagnetic activity is possible on April 10 and 11, as a new coronal hole high speed stream is expected to arrive near Earth.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 037, gebaseerd op 17 stations.

Zon indexen voor 08 Apr 2015

Wolfgetal Catania	044
10cm zonneflux	106
AK Chambon La Forêt	010
AK Wingst	005
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	033 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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