Het archief bekijken van zondag 4 mei 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 May 04 1314 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
04 May 2014	132	013
05 May 2014	130	004
06 May 2014	130	010

Bulletin

The Sun produced six C-class flares since our last bulletin. The source regions were Catania sunspot groups 33, 34 and 36 (NOAA AR 2047, 2049 and 2051 respectively). Catania sunspot group 36 has slightly grown in size and keeps its beta-gamma-delta magnetic configuration. The CME associated to the long-duration event of 6:12 UT on 3 May apparently is moving to the west, but also has an Earth-directed component. The CME is expected to arrive around 18:00 UT of 6 May. An asymmetric but faint halo CME was observed in LASCO C2 from 20:48 on 3 May, but analysis of coronagraphic imagery reveals it is expected not to be Earth-directed. Flaring activity at C-class level is expected to continue, with a slight chance for M-class flares. ACE observations of the interplanetary conditions show a signature of shock arrival on 3 May, around 16:50 UT. It is probably associated with the CME event of 30 April. Solar wind speed increased to about 380 km/s. The magnitude of the interplanetary magnetic field went maximally 12 nT, with a vertical component that is varying between -9 and 7 nT. Unsettled geomagnetic conditions were observed in Dourbes (local K=3) and global NOAA Kp went to K=4. Quiet to active conditions can be expected for the next few hours. The situation will then return to quiet conditions. Unsettled to active conditions could be expected due to the arrival of the CME of 3 May from the UT afternoon of 6 May on.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 094, gebaseerd op 17 stations.

Zon indexen voor 03 May 2014

Wolfgetal Catania	///
10cm zonneflux	133
AK Chambon La Forêt	019
AK Wingst	007
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	088 - Gebaseerd op 19 stations

Overzicht opvallende gebeurtenissen

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

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