Het archief bekijken van zondag 30 september 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Sep 30 1230 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
30 Sep 2018	069	007
01 Oct 2018	069	010
02 Oct 2018	069	007

Bulletin

Solar activity was very low with X-ray flux remaining below B level. A new bipolar active region (NOAA 2723) emerged but is inactive. Chances for X-ray flaring are thus increasing but X-ray flux is still expected to be below C level.

No Earth directed CMEs have been recorded in coronagraph images.

Proton flux levels were at background values and are expected to remain so.

A negative polarity equatorial coronal hole is currently transiting the central meridian and is expected to become geoeffective by late October 3.

Solar wind saw some transient perturbations with solar wind speed reaching 500 km/s and total magnetic field reaching 8nT. Bz was mostly positive. Currently, Solar wind speed is back at near 430 km/s and total magnetic field at a nominal 2-4nT. Near nominal solar wind conditions are expected over the next days.

Geomagnetic conditions were quiet to unsettled (both NOAA Kp and local K Dourbes 0-3). Geomagnetic conditions are expected to be quiet to unsettled over the next days.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 016, gebaseerd op 22 stations.

Zon indexen voor 29 Sep 2018

Wolfgetal Catania	///
10cm zonneflux	069
AK Chambon La Forêt	016
AK Wingst	012
Geschatte Ap	012
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

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