Het archief bekijken van vrijdag 14 april 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Apr 14 1304 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
14 Apr 2017	074	017
15 Apr 2017	075	013
16 Apr 2017	074	011

Bulletin

Solar activity was at very low levels. No flares were observed during the reporting period. CACTUS detected a narrow NW CME from LASCO C2 images around 17:36 UT yesterday. This CME is not expected to be geoeffective. Integral proton flux for protons with energies above 10 MeV remained at background level. B-class flaring is expected.

Solar wind speed fluctuated strongly between 450 km/s to 400 km/s during the period. The interplanetary magnetic field gradually increased from 3 nT to 8 nT. Bz fluctuated between -3 and +3 nT before 00 UT and then gradually decreased to -6 nT. Geomagnetic conditions were ranged K Dourbes between 1 and 3; NOAA Kp between 1 and 4 during the reporting period. A high speed stream from a positive coronal hole (CH HSS) is expected to disturb further the solar wind environment. Active geomagnetic conditions are expected. Isolated episodes of minor storm are possible

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 016, gebaseerd op 15 stations.

Zon indexen voor 13 Apr 2017

Wolfgetal Catania	028
10cm zonneflux	074
AK Chambon La Forêt	014
AK Wingst	005
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	024 - Gebaseerd op 30 stations

Overzicht opvallende gebeurtenissen

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

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