Het archief bekijken van maandag 23 december 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Dec 23 1314 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10cm flux	Ap
23 Dec 2013	143	003
24 Dec 2013	145	005
25 Dec 2013	145	021

Bulletin

There were five M flares and thirteen C flares on the Sun during the past 24 hours, the large majority being released by NOAA AR 11928. The brightest one was an M3.3 flare from NOAA AR 11928 peaking at 15:12 UT on December 22. In the next 48 hours, the probability for C flares is very high (over 90%) and for M flares around 75%, mainly from beta-gamma regions NOAA AR 11928 and NOAA 11934. An X flare is possible but unlikely. A warning condition for proton storms is issued in view of the high flaring rate of NOAA AR 11928 near the West limb. In the past 24 hours, solar wind speed decreased from around 340 km/s to around 310 km/s and the magnitude of the Interplanetary Magnetic Field was around 3 nT, as observed by ACE. Current geomagnetic conditions are quiet (K Dourbes between 0 and 2; NOAA Kp between 0 and 1) and are expected to remain so on December 23 and 24. On December 25, geomagnetic conditions might become active (K Dourbes = 4) due to the effects of a northern coronal hole (25-55N), which has passed the central meridian yesterday.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 078, gebaseerd op 08 stations.

Zon indexen voor 22 Dec 2013

Wolfgetal Catania	///
10cm zonneflux	138
AK Chambon La Forêt	///
AK Wingst	000
Geschatte Ap	001
Geschat internationaal zonnevlekkengetal	081 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

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

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