Het archief bekijken van dinsdag 11 september 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Sep 11 1401 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

Moderate (ISES: Major) magstorm expected (A>=50 or K=6)

Proton Flux monitor

Quiet

	10cm flux	Ap
11 Sep 2018	068	051
12 Sep 2018	069	031
13 Sep 2018	068	014

Bulletin

Solar activity was very low with X-ray flux below B level throughout the period. The only active region on disk (NOAA AR 2721) produced one A3.5 flare peaking at 12.53 UT yesterday. No earth-directed coronal mass ejections (CMEs) were observed. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain at very low levels. Solar wind speed increased from about 370 to about 600 km/s during the past 24 hours (DSCOVR) due to the influence of a co-rotating intercation region followed by the influence of a positive polarity coronal hole high speed stream. Due to the strong negative Bz varied between -13 and +11 nT geomagnetic conditions reached moderated storm level Kp index = 6 during 03-09 UT today and minor storm level locally at Dourbes (K = 5) during the same time interval. Geomagnetic activity is expected to continue mostly at the minor storm level today and tomorrow.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 015, gebaseerd op 17 stations.

Zon indexen voor 10 Sep 2018

Wolfgetal Catania	///
10cm zonneflux	069
AK Chambon La Forêt	042
AK Wingst	026
Geschatte Ap	025
Geschat internationaal zonnevlekkengetal	011 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

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

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