Het archief bekijken van zaterdag 26 mei 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 May 26 1247 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
26 May 2018	076	003
27 May 2018	077	005
28 May 2018	076	011

Bulletin

Solar activity was at low levels. The largest flare B3.7 originated at NOAA AR 2711 (McIntosh: Cso; Mag.Type: Beta) peaked yesterday (25-May-2018) at 20:09 UT. NOAA AR 2710 decayed to Halpha plage. 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 low levels with some probability for C class flares. Solar wind parameters returned to the background level. The solar wind speed gradually decreased from 375 km/s till about 320 km/s. The total magnetic field was below 5 nT. The Bz component fluctuated around 0nT between -1 nT and +3 nT. Geomagnetic conditions ranged between Kp index 0-1 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet today and tomorrow. Later, from 28-May-2017 most likely unsettled geomagnetic conditions can be expected due to the weak influence from a positive polarity low lattitude extension of the northern coronal hole.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 028, gebaseerd op 18 stations.

Zon indexen voor 25 May 2018

Wolfgetal Catania	035
10cm zonneflux	076
AK Chambon La Forêt	///
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	033 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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