Het archief bekijken van maandag 21 mei 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 May 21 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
21 May 2018	069	005
22 May 2018	070	007
23 May 2018	071	010

Bulletin

Solar activity was at very low levels. A new sunspot region has rounded the east limb (Catania 82), but it is small and -so far- inactive. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. Solar activity is expected to be at very low levels. The solar wind speed at L1 is below 400 km/s with interplanetary magnetic field magnitude of 5 nT (recorded by ACE). Geomagnetic conditions have been quiet and are expected to remain so. On May 23, the high speed solar wind from the positive polarity extension of the northern polar coronal hole may arrive to the Earth and cause disturbed geomagnetic conditions (although it might pass north of the Earth without affecting it).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 011, gebaseerd op 23 stations.

Zon indexen voor 20 May 2018

Wolfgetal Catania	///
10cm zonneflux	069
AK Chambon La Forêt	///
AK Wingst	003
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 30 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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