Het archief bekijken van donderdag 4 augustus 2016

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 Aug 04 1249 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

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

Proton Flux monitor

Quiet

	10cm flux	Ap
04 Aug 2016	075	019
05 Aug 2016	075	019
06 Aug 2016	075	007

Bulletin

Solar activity was very low. No C flares were observed. Solar activity is expected to remain very low (no C flaring) for the next 24 hours. A filament eruption in the NE quadrant was observed by PROBA2/SWAP and Big Bear H alpha between about 16h and 19h UT on August 3. An associated CME was first registered by LASCO C2 at 18:12 UT. Further analysis is required to evaluate the possible geo-effects of this CME. Solar wind speed measured by DSCOVR suddenly increased from about 430 to 580 km/s between 12:00 UT and 13:50 UT on August 3, indicating the arrival of a high speed stream associated with a positive coronal hole. This implies that the earlier solar wind enhancements on August 2 and 3 were most probably due to the arrival of the CME of July 28. Meanwhile, solar wind speed has gradually increased to 620 km/s while the magnitude of the Interplanetary Magnetic Field has been around 5 nT. In the past 24 hours, quiet to minor storm geomagnetic levels were registered (K Dourbes between 2 and 5; NOAA Kp between 3 and 4). Active levels (K Dourbes = 4) are possible on August 4 and 5 under the influence of the coronal hole high speed stream, with a slight chance for a minor geomagnetic storm (K Dourbes = 5). A return to quiet to unsettled geomagnetic conditions is expected on August 6.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 007, gebaseerd op 16 stations.

Zon indexen voor 03 Aug 2016

Wolfgetal Catania	///
10cm zonneflux	075
AK Chambon La Forêt	046
AK Wingst	037
Geschatte Ap	040
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 24 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina