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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2017 Dec 03 1230 UTC

SIDC Předpověď

Sluneční erupce

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Moderate (ISES: Major) magstorm expected (A>=50 or K=6)

Sluneční protony

Quiet

	10cm tok	Ap
03 Dec 2017	071	004
04 Dec 2017	070	054
05 Dec 2017	070	045

Bulletin

Solar activity was at very low levels. The Sun is spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Quiet flaring conditions are expected.

ACE data indicated solar wind speed decreased further from initial values near 400 km/s to about 350 km/s by the end of the period. Bz varied between +3 nT and -4 nT. The interplanetary magnetic field was mostly directed towards the Sun. The extension of a positive northern polar CH is transiting the central meridian.

The geomagnetic field was quiet to unsettled levels throughout the period, and is expected to remain so until the arrival of the high speed stream from the northern polar coronal hole (CH) extension and its associated preceding co-rotating interaction region. Based on observations from the previous solar rotation and from STEREO-A, their influence may start affecting the earth environment late on 03 December or on 04 December, with minor to moderate geomagnetic storming possible.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 09 stanic.

Solární indexy za 02 Dec 2017

Wolfovo číslo Catania	///
10cm sluneční tok	072
AK Chambon La Forêt	006
AK Wingst	003
Odhadovaný Ap	003
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 13 stanic

Souhrn významných událostí

Poskytuje Centrum pro analýzu dat o solárních vlivech© - SIDC - Zpracováno SpaceWeatherLive

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