Prohlížíte si archiv pátek 16. srpna 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2013 Aug 16 1220 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
16 Aug 2013	127	022
17 Aug 2013	127	017
18 Aug 2013	125	007

Bulletin

Eruptive conditions should persist for the solar activity over the next 48 hours, with C class flares likely from NOAA AR 1817 and 1818, and a slight risk for an isolated M class event from both regions. Active geomagnetic conditions were observed at local levels (Dourbes) during the past 24 hours. Active to minor storm periods were observed at planetary levels. We expect unsettled to active conditions to persist for the next 24 hours and then return to mostly quiet conditions by Aug. 17- Aug. 18. ACE measurements show disturbed Bz and high solar wind speed (around 800 km/s) in relation with the northern coronal hole.

Today's estimated international sunspot number (ISN): 067, based on 20 stations.

Solar indices for 15 Aug 2013

Wolf number Catania	///
10cm solar flux	123
AK Chambon La Forêt	028
AK Wingst	020
Estimated Ap	020
Estimated international sunspot number	087 - Based on 16 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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