Het archief bekijken van zondag 27 april 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Apr 27 1225 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
27 Apr 2014	118	005
28 Apr 2014	116	009
29 Apr 2014	114	005

Bulletin

NOAA 2038 produced the only C flare of the period (C2 peaking at 14:59UT), just before rounding the west limb. Current imagery shows 6 sunspot groups, most having magnetically simple configurations. One region developed overnight in the northwest quadrant, while two other regions rounded the east limb. There are also a few 15-20 degrees long filaments visible near the central meridian and in the southwest quadrant. C-class flares remain possible. Solar wind speed decreased further from around 380 to 350km/s. Bz varied between -4 and +3nT, and became predominantly northward around midnight. The particle stream from a small equatorial coronal hole that passed the central meridian early on 24 April, is expected to arrive at Earth later today or tomorrow. The geomagnetic field has been quiet and is expected to remain so. Locally, a brief active interval is possible from the effect of the coronal hole.

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

Zon indexen voor 26 Apr 2014

Wolfgetal Catania	///
10cm zonneflux	121
AK Chambon La Forêt	008
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	032 - Gebaseerd op 19 stations

Overzicht opvallende gebeurtenissen

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

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