Het archief bekijken van maandag 4 december 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Dec 04 1233 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 Dec 2017	069	006
05 Dec 2017	069	043
06 Dec 2017	069	037

Bulletin

The solar activity remained very quiet. The visible solar disc is spotless and no flare has been recorded in past 24-hour. Quiet flaring conditions are expected.

No Earth directed Coronal Mass Ejection has been observed. The solar protons flux (greater than 10 MeV) remained at nominal levels over the past 24 hours and is expected to remain so.

Solar wind conditions were at nominal levels: The speed of the solar wind was around 300 and 350 km/s; the interplanetary magnetic field magnitude was below 6 nT over the last period except at 04:42 on Dec 4 it reached 9.2 nT; the Bz component of the magnetic field globally varied between +5 nT and -5 nT and reached -7.8 nT at 04:45 on Dec 4. The high speed stream associated with the extension of the northern polar Coronal Hole that has transited the central meridian on Nov 31 is expected to reach Earth with in this period.

The geomagnetic conditions were at the nominal level with K-Dourbes and Kp ranging between 0 and 2. The geomagnetic activity is expected to be unset to active with to arrival of the high speed stream by the end of this period.

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

Zon indexen voor 03 Dec 2017

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	004
AK Wingst	001
Geschatte Ap	002
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

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

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