Het archief bekijken van dinsdag 16 april 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Apr 16 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
16 Apr 2019	075	007
17 Apr 2019	074	006
18 Apr 2019	074	005

Bulletin

Solar activity was at very low levels. NOAA 2738 produced a B3 flare peaking at 19:31UT. No earth-directed coronal mass ejections were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A weak extension from the positive polarity northern polar coronal hole (CH) is transiting the central meridian.

Solar activity is expected to remain at very low levels.

Solar wind speed continued its gradual increase from its initial 340 km/s to reach 400 km/s by the end of the period. Bz varied between -6 and 6 nT, with a negative stretch from 15 till 20UT. The interplanetary magnetic field was mostly directed towards the Sun (negative sector). Quiet to unsettled geomagnetic conditions were observed.

Quiet to unsettled geomagnetic conditions are expected to continue.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 012, gebaseerd op 23 stations.

Zon indexen voor 15 Apr 2019

Wolfgetal Catania	///
10cm zonneflux	075
AK Chambon La Forêt	014
AK Wingst	///
Geschatte Ap	009
Geschat internationaal zonnevlekkengetal	013 - Gebaseerd op 33 stations

Overzicht opvallende gebeurtenissen

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

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