Prohlížíte si archiv čtvrtek 16. září 2021

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2021 Sep 16 1231 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
16 Sep 2021	076	001
17 Sep 2021	074	001
18 Sep 2021	076	007

Bulletin

The solar activity was at very low levels with no C-class flare activity over the past 24 hours. The only significant feature observable from Earth is NOAA plage 2870 who is not expected to produce any C-class flares. There is a small chance of C-class activity from a returning active region for the next 24 hours.

No Earth-directed CMEs were detected in the available coronagraph imagery over the past 24 hours.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2MeV electron flux was below the 1000 pfu threshold and is expected to remain so in the next 24 hours. The 24h fluence for the greater than 2MeV electron flux was at nominal levels and is expected to remain so in the next 24 hours.

The Solar Wind (SW) parameters measured by ACE and DSCOVR are typical of the slow wind regime. The SW speed dropped from 430 to 310 km/s over the last 24 hours. The total magnetic field (Btot) varied 0.9 and 5.2 nT and the Bz magnetic field component varied between -3.5 and 3.7 nT during the past 24 hours. The interplanetary magnetic field was mainly positive (directed away from the Sun) during the last 24 hours. The solar wind parameters are expected to remain in the slow SW regime in the next 24 hours.

The geomagnetic conditions over the past 24 hours were globally and locally quiet (NOAA Kp index and K Dourbes 1-2). They are expected to become quiet both globally and locally in the next 24 hours.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 21 stanic.

Solární indexy za 15 Sep 2021

Wolfovo číslo Catania	011
10cm sluneční tok	075
AK Chambon La Forêt	008
AK Wingst	006
Odhadovaný Ap	006
Odhadovaný mezinárodní počet slunečních skvrn	011 - Na základě 18 stanic

Souhrn významných událostí

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

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