Het archief bekijken van maandag 19 december 2016

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 Dec 19 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
19 Dec 2016	073	009
20 Dec 2016	074	010
21 Dec 2016	075	006

Bulletin

Solar activity was very quiet in the past 24 hours without C-class flares reported. There is only one NOAA active region (AR) 2619 observed on visible side of the solar disk with simple magnetic configuration. No Earth directed CMEs were observed in the past 24 hours. The northern polar coronal hole, which expanded to low latitudes, may disturb the geospace environment from today (19-Dec-2016). Solar proton flux intensity is expected to lie within the background levels. Solar activity is expected to be low with some probability for C-class flares. Variations of the solar wind parameters were low. Total Interplanetary Magnetic field (IMF) strength varied between 7 and 4 nT, while Bz varied between -4.4 and 5.5 nT. The solar wind speed decreased from 450 km/s till 380 km/s. Geomagnetic conditions were quiet (K Dourbes between 0 and 2; NOAA Kp between 1 and 2). The geomagnetic conditions are presently quiet to unsettled. We expect active conditions later today and tomorrow due to expected arrival of the fast solar wind associated with the low latitude extend of the northern polar coronal hole.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 026, gebaseerd op 09 stations.

Zon indexen voor 18 Dec 2016

Wolfgetal Catania	///
10cm zonneflux	072
AK Chambon La Forêt	013
AK Wingst	009
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	033 - Gebaseerd op 13 stations

Overzicht opvallende gebeurtenissen

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

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