Het archief bekijken van zaterdag 20 juli 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Jul 20 1408 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
20 Jul 2013	114	015
21 Jul 2013	113	015
22 Jul 2013	113	012

Bulletin

The only C-class flare reported during the last 24 hours was C2.1 flare originating from the NOAA AR 1793. This active region currently has beta- gamma configuration of the photosperic magnetic field and the potential to produce C-class and possibly M-class flares. The newly arrived data showed that the CME on July 18 associated with the prominence eruption on the east solar limb, is most probably not Earth-directed. The Earth is still inside the fast speed stream due to the low-latitude coronal hole in the northern hemisphere. At the moment the solar wind speed is 530 km/s and the interplanetary magnetic field (IMF) is rather stable with the magnitude of about 2 nT. We expect unsettled to active geomagnetic conditions due to the currently ongoing influence of the fast stream. The arrival of the fast flow from the low-latitude coronal hole (also crossing the equator) in the southern hemisphere, which just reached the central meridian is expected on July 23.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 037, gebaseerd op 12 stations.

Zon indexen voor 19 Jul 2013

Wolfgetal Catania	///
10cm zonneflux	114
AK Chambon La Forêt	023
AK Wingst	020
Geschatte Ap	019
Geschat internationaal zonnevlekkengetal	058 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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