Het archief bekijken van vrijdag 25 augustus 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Aug 25 1230 UTC

SIDC Prognose

Zonnevlammen

C-class flares expected, (probability >=50%)

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
25 Aug 2017	078	005
26 Aug 2017	077	007
27 Aug 2017	076	007

Bulletin

Active Region (AR) 2672 (McIntosh class: Esi; Mag.type: Beta- Gamma) produced C5.5 flare peaking at 07:27 UT today. AR 2671 (McIntosh class: Fsi; Mag.type: Beta-Gamma) produced multiple B-class flares during the past 24 hours; the largest flare was B8.4 flare peaking at 15:58 UT yesterday. No Earth directed Coronal Mass Ejections (CMEs) have been detected in available coronagraph imagery. Solar activity is expected to be at C-class flaring level for the next three days. Solar wind parameters variations decayed over the past 24 hours. The solar wind speed decreased from 410 to 350 km/s. The total magnetic field strength remained below 5.5 nT. The Bz component fluctuated around 0 nT but was mainly positive, ranging between -3.5 and +4 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be mostly quiet with some isolated episodes of Kp=3.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 050, gebaseerd op 24 stations.

Zon indexen voor 24 Aug 2017

Wolfgetal Catania	050
10cm zonneflux	079
AK Chambon La Forêt	010
AK Wingst	010
Geschatte Ap	012
Geschat internationaal zonnevlekkengetal	052 - Gebaseerd op 29 stations

Overzicht opvallende gebeurtenissen

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

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