Het archief bekijken van zondag 11 augustus 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Aug 11 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
11 Aug 2019	067	009
12 Aug 2019	067	010
13 Aug 2019	067	006

Bulletin

Solar activity was at very low levels. The Sun was spotless. No earth-directed coronal mass ejections (CME) were observed during the period. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed decreased from values near 500 km/s to around 430 km/s (ACE) by 07UT. Bz varied between -4 and +3 nT. The interplanetary magnetic field (phi angle) was predominately oriented away from the Sun (positive sector). From 09:03UT until about 11:30UT, the phi angle was directed towards the Sun. This period was associated with slightly increased wind speeds between 450 and 480 km/s, and Bz values nearly continuously near -4nT.

Quiet to unsettled geomagnetic conditions were observed. The wind stream from an irregular shaped negative polarity coronal hole is expected to arrive on 11 August, which may result in mostly unsettled geomagnetic conditions continuing into 12 August, with an isolated active episode not excluded.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 17 stations.

Zon indexen voor 10 Aug 2019

Wolfgetal Catania	///
10cm zonneflux	067
AK Chambon La Forêt	013
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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