Prohlížíte si archiv úterý 7. dubna 2015

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2015 Apr 07 1230 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

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

Sluneční protony

Quiet

	10cm tok	Ap
07 Apr 2015	120	009
08 Apr 2015	120	018
09 Apr 2015	120	017

Bulletin

The Sun released one C3.0 flare during the past 24 hours. It was produced by NOAA AR 2320, peaked at 19:06 UT on April 6 and was associated to a dimming, an EUV wave, a surge, a CME and a Type II radio burst. The CME was first observed by LASCO C2 at 19:24 UT and had an angular extent of about 140 degrees. The plane-of-sky speed derived by CACTUS was 339 km/s, while the Type II burst corresponds to a speed of 691 km/s. This CME may deliver a glancing blow in the second half of April 9. In the next 24 hours, more C flaring is expected, with a slight chance for an M flare, especially from AR 2320 and 2318. Solar wind speed gradually decreased from about 480 to 400 km/s over the past 24 hours, while the Interplanetary Magnetic Field magnitude varied between 1 and 5 nT. Over the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 0 and 3; NOAA Kp between 1 and 2). There is a chance for active geomagnetic levels (K Dourbes = 4) late on April 7 and on April 8, due to a possible glancing blow of the CME of April 4. Quiet conditions with active intervals are possible in the second half of April 9, as a result of a glancing blow from the CME of April 6.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 040, na základě 18 stanic.

Solární indexy za 06 Apr 2015

Wolfovo číslo Catania	///
10cm sluneční tok	126
AK Chambon La Forêt	010
AK Wingst	005
Odhadovaný Ap	005
Odhadovaný mezinárodní počet slunečních skvrn	039 - Na základě 19 stanic

Souhrn významných událostí

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