Het archief bekijken van maandag 12 augustus 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Aug 12 1221 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
12 Aug 2013	114	008
13 Aug 2013	118	007
14 Aug 2013	120	007

Bulletin

NOAA AR 1817 is expected to be the main player in the coming 48 hours with risks of M class flares. It evolved rather quickly in the past 24 hours, and it is now a complex and elongated sunspot group. The central part shows a wide penumbra making the link between two opposite polarity sunspots. Strong C flares occurred in this region on August 11 (C6.7 at 2131UT and C8.4 at 2158 UT peak time). A M1.5 flare occurred in this region on August 12, 1041 UT peak time. Indirect signatures of CMEs were observed, on disk, with EUV imagers, but data gaps in coronagraphic data during these flares, do not allow to confirm this. We expect active flaring conditions in the next 48 hours. C flares are possible for NOAA AR 1818. We foresee mostly quiet conditions in terms of geomagnetic activity for the next 48 hours. Current interplanetary conditions, as measured by ACE are quiet.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 057, gebaseerd op 13 stations.

Zon indexen voor 11 Aug 2013

Wolfgetal Catania	///
10cm zonneflux	110
AK Chambon La Forêt	///
AK Wingst	006
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	054 - Gebaseerd op 20 stations

Overzicht opvallende gebeurtenissen

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

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