Het archief bekijken van vrijdag 22 februari 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Feb 22 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
22 Feb 2019	070	005
23 Feb 2019	070	006
24 Feb 2019	070	003

Bulletin

Solar activity was at very low levels. The dynamic filament, now located near N15W20, has grown to a length of about 20 degrees. No earth- directed coronal mass ejections (CMEs) have been observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A negative polarity equatorial coronal hole has started its transit of the central meridian.

Solar activity is expected to remain at very low levels.

The earth environment remained under the influence of the wind stream from the positive polarity coronal hole (CH). Solar wind speed was fairly steady, varying mostly between 440 and 470 km/s with a 1-hour high near 500 km/s shortly after midnight (DSCOVR). Bz oscillated between -5 and +6 nT. The interplanetary magnetic field was directed away from the Sun (positive sector) until 06UT, moving into a negative sector afterwards. Geomagnetic activity was at quiet to unsettled levels.

Mostly quiet to unsettled geomagnetic conditions are expected, with a waning chance on an isolated active episode.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 13 stations.

Zon indexen voor 21 Feb 2019

Wolfgetal Catania	013
10cm zonneflux	071
AK Chambon La Forêt	020
AK Wingst	013
Geschatte Ap	013
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

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

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