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Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 May 20 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
20 May 2019	066	010
21 May 2019	066	017
22 May 2019	066	010

Bulletin

Over the past 24 hours solar activity has been low. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours.

The solar wind speed has fluctuated between 350 and 415 km/s over the past 24 hours. The total magnetic field strength fluctuated around 6 nT for the first part of the period and then slowly increased to a maximum of around 9 nT at around 7:00 UT. The Bz component fluctuated around 0 nT, ranging between -6.3 and +7.7 nT.

Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. Quiet to unsettled geomagnetic levels are expected to continue. Some isolated active intervals are also possible, due to the expected arrival of a weak solar wind stream associated with a recurring, negative polarity equatorial coronal hole which traversed the central meridian on 18 May.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 10 stations.

Zon indexen voor 19 May 2019

Wolfgetal Catania	///
10cm zonneflux	068
AK Chambon La Forêt	010
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

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

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