Het archief bekijken van dinsdag 12 april 2016

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 Apr 12 1242 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
12 Apr 2016	117	014
13 Apr 2016	119	027
14 Apr 2016	121	025

Bulletin

Four C flares were released by NOAA AR 2529 in the past 24 hours. The brightest one was a C1.8 flare which peaked at 07:51 UT on April 12. More C flares (probability 75%) are expected in the next 24 hours, with a slight chance (probability 10%) for an M flare, especially from AR 2529. CACTUS detected a partial halo CME at 03:24 on April 12. Close inspection of EUVI A imagery revealed that this CME was associated to a backside event, and will not be geoeffective. Solar wind speed varied between about 340 and 470 km/s in the past 24 hours, while the magnitude of the Interplanetary Magnetic Field ranged between 1 and 12 nT. Over the past 24 hours, geomagnetic conditions have been quiet to unsettled (K Dourbes between 1 and 3; NOAA Kp between 1 and 3). Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on most of April 12. Late on April 12, and on April 13 and 14, the expected arrival of a high speed stream associated with a negative equatorial coronal hole may cause active (K Dourbes = 4) to moderate storm (K Dourbes = 6) conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 038, gebaseerd op 26 stations.

Zon indexen voor 11 Apr 2016

Wolfgetal Catania	044
10cm zonneflux	117
AK Chambon La Forêt	011
AK Wingst	006
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	042 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

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