Prohlížíte si archiv sobota 13. dubna 2019

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Apr 13 1230 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
13 Apr 2019	077	009
14 Apr 2019	077	008
15 Apr 2019	076	008

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a B7.1 class flare. Active Region (AR) 2738 (Mcintosh class:Cho; Mag. type:Beta) has produced all the flaring activity, including the B7.1 class flare (note: this peaked at 11:37 UT on 12-Apr-2018, but data was unavailable for yesterdays Forecast), the region has shown some evidence of flux emergence and cancellation in HMI magnetogram observations, this may increase flaring activity. No significant filament channels have been seen on the solar disk. No Earth directed CMEs have been detected. There are no significant low latitude coronal holes on the solar disk. The greater-than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a reasonable chance of a C-class flare from AR 2738.

The solar wind speed has fluctuated between 400 and 460 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component has fluctuated around 0 nT, ranging between -5 and +4 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 014, na základě 18 stanic.

Solární indexy za 12 Apr 2019

Wolfovo číslo Catania	///
10cm sluneční tok	077
AK Chambon La Forêt	015
AK Wingst	008
Odhadovaný Ap	008
Odhadovaný mezinárodní počet slunečních skvrn	015 - Na základě 24 stanic

Souhrn významných událostí

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

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