Het archief bekijken van woensdag 2 augustus 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Aug 02 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
02 Aug 2017	074	010
03 Aug 2017	074	007
04 Aug 2017	074	020

Bulletin

In the past 24 hours, returning Active Region NOAA 2665 produced a few low B flares. C flares from NOAA 2665 are possible in the next 48 hours, with a chance for an M flare. No earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. In the past 24 hours, solar wind speed measured by DSCOVR has increased from about 380 to a maximum of about 470 km/s around 17:15 UT on August 1, with current values around 425 km/s. The Interplanetary Magnetic Field (IMF) was mainly oriented towards the Sun, while its magnitude varied between about 1 and 11 nT. Bz varied between about -4 and 9 nT and was mainly positive. A large positive coronal hole extending from the north pole to the equatorial region has been crossing the central meridian from July 31 to August 2. Quiet geomagnetic conditions (K Dourbes between 1 and 2; NOAA Kp between 1 and 3) were registered in the past 24 hours. Active levels (K Dourbes = 4) are possible on August 2, with a slight chance for minor storm conditions (K Dourbes = 5). Quiet to unsettled solar wind conditions (K Dourbes < 4) are expected on August 3. Active to minor storm conditions (K Dourbes = 4 to 5) are possible on August 4, with the expected arrival of a high speed stream from the aforementioned positive coronal hole.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 012, gebaseerd op 15 stations.

Zon indexen voor 01 Aug 2017

Wolfgetal Catania	012
10cm zonneflux	074
AK Chambon La Forêt	008
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	012 - Gebaseerd op 24 stations

Overzicht opvallende gebeurtenissen

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

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