Het archief bekijken van donderdag 2 augustus 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Aug 02 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
02 Aug 2018	070	007
03 Aug 2018	071	008
04 Aug 2018	072	007

Bulletin

Solar activity was at very low levels. The small active region NOAA 2717 (McIntosh: Axx; Hale: alpha) is currently (06UT) located near S06E25, and seems to be dacaying. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to remain at very low levels.

Solar wind remained somewhat disturbed and enhanced. Wind speed varied between 450 km/s (around 13:30UT) and 350 km/s (around 02:45UT), ending the period with values near 370 km/s (DSCOVR). Bz varied mostly between -8 and +6 nT throughout the period, being predominately positive. The interplanetary magnetic field was mostly directed away from the Sun, until about 04UT when it became mostly negative (towards the Sun). Quiet to unsettled geomagnetic conditions were observed.

Geomagnetic activity is expected to continue at quiet to unsettled levels until 4 or 5 August when a weak wind stream associated with a small negative polarity equatorial coronal hole (CH) may start influencing the earth environment. An isolated active episode is then possible.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 011, gebaseerd op 23 stations.

Zon indexen voor 01 Aug 2018

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	015
AK Wingst	010
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	012 - Gebaseerd op 30 stations

Overzicht opvallende gebeurtenissen

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

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