Het archief bekijken van donderdag 31 januari 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Jan 31 1242 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

Minor storm expected (A>=30 or K=5)

Proton Flux monitor

Quiet

	10cm flux	Ap
31 Jan 2019	074	017
01 Feb 2019	072	025
02 Feb 2019	070	011

Bulletin

No C-class flares in the past 24 hours, NOAA AR 2733 rotated over the west limb. There are no active regions visible. Eight B-class flares were observed (still from NOAA AR 2733), the strongest one was a B9.7 flare peaking at 17:05 UT on 30 January. Low solar activity is expected.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 350 km/s with interplanetary magnetic fields of 14 nT. Geomagnetic conditions have been quiet. Solar wind density, speed, temperature and magnetic field have been increasing since last night, together with a sector boundary crossing (from positive to negative magnetic field polarity), marking the arrival of the fast solar wind associated with a negative polarity equatorial coronal hole. Disturbed geomagnetic conditions (most likely up to K=5) are expected for the next 48 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 16 stations.

Zon indexen voor 30 Jan 2019

Wolfgetal Catania	012
10cm zonneflux	074
AK Chambon La Forêt	005
AK Wingst	002
Geschatte Ap	002
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina