Het archief bekijken van dinsdag 17 december 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Dec 17 1229 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
17 Dec 2013	152	006
18 Dec 2013	150	005
19 Dec 2013	150	011

Bulletin

The strongest solar flare was a C3.1 long-duration flare peaking on December 16 at 21h33 UTC originating from new active region NOAA AR 1927, located at the west limb. The flare was associated with a CME, observed in LASCO/C2 (first measurement on December 16 at 21h27 UTC) and STEREO A coronagraphic data (at 21h39 UTC). The CME is travelling to the west with an estimated speed of 650 km/s (estimated via Stereo CAT), with possible arrival of a glancing blow late December 19 (UTC time). The probability for C-flares is around 70%, M-flares around 30%, with NOAA ARs 1917 and 1927 as main source candidates. The chances for an X-flare are low. The proton flux measured by GOES, is below threshold levels. We are currently inside a slow solar wind stream with a solar wind speed of 400 km/s, as observed by ACE. The interplanetary magnetic field currently is weak with a maximum magnitude of 5 nT. Geomagnetic conditions are quiet (K<3) to unsettled (K=3) and are expected to remain so for the next 48 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 088, gebaseerd op 07 stations.

Zon indexen voor 16 Dec 2013

Wolfgetal Catania	///
10cm zonneflux	154
AK Chambon La Forêt	009
AK Wingst	006
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	080 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

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

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