Het archief bekijken van maandag 28 april 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Apr 28 1232 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
28 Apr 2014	120	014
29 Apr 2014	124	008
30 Apr 2014	124	005

Bulletin

Six sunspot regions are visible at the front side of the solar disk. All have a simple alpha or beta magnetic configuration. The background of the GOES Xray flux is at B-class level and no noteworthy flares were measured. A weak CME erupted towards the north, first visible in LASCO/C2 at 5:36 UT on 28 April. It can hardly be called a partial halo CME and does not seem to be Earth directed. C-class flaring activity can be expected for the next 48 hours. Solar wind speed is relatively stable with values between 300 to 350km/s. The magnitude of the interplanetary magnetic field was maximally 5 nT with a mainly negative Bz. Geomagnetic conditions were unsettled and are expected to remain as such. An isolated time slot of active conditions is possible at arrival of a high speed stream related to the coronal hole that passed the central meridian early on 24 April.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 057, gebaseerd op 10 stations.

Zon indexen voor 27 Apr 2014

Wolfgetal Catania	///
10cm zonneflux	118
AK Chambon La Forêt	009
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	057 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

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

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