Het archief bekijken van vrijdag 20 juli 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Jul 20 1230 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
20 Jul 2018	070	010
21 Jul 2018	069	008
22 Jul 2018	069	006

Bulletin

The visible side of the Sun remains to be spotless and consequently, there is no flaring activity reported during last 24 hours. We expect such a low flaring activity to persist in the coming hours. No Earth directed CMEs were observed, and the solar protons remained at the background level.

The solar wind speed is presently about 450 km/s and the interplanetary magnetic field magnitude is about 5 nT. It is presently unclear if the small increase of the solar wind speed (up to 480 km/s was reached at 09 UT this morning), and interplanetary magnetic field (up to 7 nT), are due to a structure in the slow solar wind or a solar wind flow associated with patchy equatorial coronal hole (reached central meridian on July 16). The geomagnetic conditions are presently unsettled to quiet and we expect such a geomagnetic conditions to persist in the coming hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 24 stations.

Zon indexen voor 19 Jul 2018

Wolfgetal Catania	000
10cm zonneflux	071
AK Chambon La Forêt	009
AK Wingst	006
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 31 stations

Overzicht opvallende gebeurtenissen

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

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