Het archief bekijken van donderdag 18 juli 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Jul 18 1257 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
18 Jul 2013	112	015
19 Jul 2013	112	044
20 Jul 2013	113	010

Bulletin

Solar activity is low. The last C-class flare reported was C1.6 flare, peaking at 09:16 UT on July 17. The Catania sunspot group 30 (NOAA AR 1791) and NOAA AR 1793 still have beta-gamma configuration of the photospheric magnetic field, and therefore, also the potential to produce C-class and possibly M-class flares. The newly arrived data showed that the CME from July 16 will probably not arrive at the Earth since the bulk of the CME mass was directed north-west of the Sun-Earth line. The interplanetary magnetic field magnitude is about 5 nT. The solar wind speed is increasing, and it is currently about 450 km/s. The observed increase of the solar wind speed is probably due to the arrival of the fast flow associated with the low-latitude coronal hole in the northern hemisphere which reached the central meridian on July 16. We expect minor storm conditions with possibly isolated intervals of major storm conditions in the following 48 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 068, gebaseerd op 18 stations.

Zon indexen voor 17 Jul 2013

Wolfgetal Catania	///
10cm zonneflux	111
AK Chambon La Forêt	009
AK Wingst	004
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	054 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

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

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