Het archief bekijken van zaterdag 16 november 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Nov 16 1235 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
16 Nov 2019	070	007
17 Nov 2019	070	018
18 Nov 2019	070	012

Bulletin

The solar activity has been at very low levels over the past 24 hours. The Sun is currently spotless and the X-ray flux remains below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind parameters were mostly at nominal values. On Nov 16, a minor enhancement of the solar wind environment was observed starting around 18:00 UT. This enhancement can be associated with the sector bordering crossing announcing the soon arrival of the expected coronal hole influence. The total magnetic field reached 7 nT around 19:30, the solar wind speed went up to 400 km/s, and the southern component of the magnetic filed fluctuated between -5.7 nT and 5 nT. The solar wind parameters are expected to return close to the nominal values for a short period of a few hours. Then we expect new enhancements of the solar wind parameters to start later today on Nov 16 or early 17 due to the influence of the negative polarity coronal hole high-speed streams, which has reached the central meridian on Nov 13.

Quiet geomagnetic conditions were observed over the past 24 hours. It is expected to remain so for a short period of a few hours until the arrival of influence due to the high-speed stream coming from the coronal hole later in Nov 16-17 were more active conditions are expected.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 14 stations.

Zon indexen voor 15 Nov 2019

Wolfgetal Catania	000
10cm zonneflux	070
AK Chambon La Forêt	007
AK Wingst	///
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 12 stations

Overzicht opvallende gebeurtenissen

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

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