Het archief bekijken van woensdag 17 mei 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 May 17 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
17 May 2017	074	017
18 May 2017	074	024
19 May 2017	074	010

Bulletin

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. Solar wind speed measured by DSCOVR decreased from about 550 to 470 km/s in the past 24 hours. The magnitude of the Interplanetary Magnetic Field (IMF) varied between about 2 and 6 nT. Solar wind speed is expected to decrease further within the next 24 hours. On May 17 or early on May 18, a glancing blow from the partial halo CME of May 13 may enhance solar wind conditions again. Quiet to unsettled geomagnetic conditions (K Dourbes between 1 and 3; NOAA Kp between 1 and 3) were registered in the past 24 hours. Quiet to unsettled levels are expected on May 17, 18 and the first half of May 19, with a chance for active geomagnetic levels (K Dourbes = 4) and a slight chance for minor geomagnetic storm intervals (K Dourbes = 5) on May 17 and 18. Active to minor storm conditions are possible late on May 19, as the high speed stream of a negative equatorial coronal hole is expected to arrive at Earth.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 012, gebaseerd op 22 stations.

Zon indexen voor 16 May 2017

Wolfgetal Catania	027
10cm zonneflux	072
AK Chambon La Forêt	013
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	024 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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