Het archief bekijken van woensdag 26 juni 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Jun 26 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
26 Jun 2019	068	008
27 Jun 2019	067	011
28 Jun 2019	067	006

Bulletin

Solar flaring activity continues to be very low without flares reported. One of the two numbered active regions NOAA AR 2742 rotated behind the west solar limb. Presently only one active region is observed on the visible side of the Sun, Catania sunspot group 19 (NOAA AR 2743). This sunspot group has only alpha configuration of its photospheric magnetic field and is therefore not expected to be source of flaring activity in the coming hours. During last few days only very narrow and slow CMEs were reported and there were no Earth directed CMEs. The solar protons remained at the background level.

The solar wind speed is presently about 400 km/s and slowly increasing. The interplanetary magnetic field magnitude remains to be low, with the value of about 3 nT. The in situ observations do not show clear signatures of the fast solar wind, but observed increase of the solar wind speed could be possibly associated with the expected arrival of the fast solar wind. The geomagnetic conditions are quiet and we expect quiet to possibly unsettled geomagnetic conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 011, gebaseerd op 18 stations.

Zon indexen voor 25 Jun 2019

Wolfgetal Catania	011
10cm zonneflux	068
AK Chambon La Forêt	009
AK Wingst	004
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	012 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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