Het archief bekijken van donderdag 27 juli 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Jul 27 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
27 Jul 2017	069	006
28 Jul 2017	069	003
29 Jul 2017	070	003

Bulletin

Solar activity was at very low levels, and is expected to remain so. The solar disk was spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux remained slightly above background levels.

Earth is exiting the high speed stream (HSS) from a positive polarity coronal hole (CH). Wind speed gradually decreased from 590 km/s to its current values near 450 km/s (DSCOVR). Bz oscillated between -4 and +3 nT until about 19UT, when it started a much smoother variation between -3 and +2 nT. The interplanetary magnetic field was mostly directed away from the Sun.

The geomagnetic field was at quiet levels. Mostly quiet geomagnetic conditions are expected, with a chance on an unsettled episode.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 16 stations.

Zon indexen voor 26 Jul 2017

Wolfgetal Catania	013
10cm zonneflux	069
AK Chambon La Forêt	012
AK Wingst	013
Geschatte Ap	013
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 24 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina