Het archief bekijken van woensdag 29 november 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Nov 29 1230 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
29 Nov 2017	072	010
30 Nov 2017	071	006
01 Dec 2017	070	005

Bulletin

Solar activity was at very low levels. Decaying sunspot region NOAA 2689 was quiet. The leading part of the prominent 40 degrees long filament has started to round the SW limb. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Quiet flaring conditions are expected, with a slight chance on an isolated C-class flare.

Solar wind speed undulated between 400 and 430 km/s, with Bz oscillating between -6 nT and +7 nT. The interplanetary magnetic field was mostly directed towards the Sun.

The geomagnetic field was quiet throughout the period. Mostly quiet to unsettled conditions are expected, with a possibility on an active episode if the glancing blow from the 25 November CME arrives or the wind stream of the negative polar coronal hole (CH) extension intensifies.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 013, gebaseerd op 10 stations.

Zon indexen voor 28 Nov 2017

Wolfgetal Catania	016
10cm zonneflux	072
AK Chambon La Forêt	009
AK Wingst	007
Geschatte Ap	007
Geschat internationaal zonnevlekkengetal	016 - Gebaseerd op 27 stations

Overzicht opvallende gebeurtenissen

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

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