Перегляд архіву середа, 26 жовтня 2016

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2016 Oct 26 1230 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

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

Сонячні протони

Quiet

	10 см потік	Ap
26 Oct 2016	078	041
27 Oct 2016	077	034
28 Oct 2016	076	026

Бюлетень

NOAA 2603 produced the strongest event of the period, a B1.9 peaking at 20:42UT. This region has now a mature but small trailing spot, and seems to have simplified magnetically. A strong coronal mass ejection (CME) over the northeast solar limb was observed in LASCO/C2 starting 25 October around 19:00UT. Its source was located on the farside of the Sun (old active region NOAA 2599). No earth-directed CMEs were observed.

Quiet flaring conditions are expected to continue, with a small chance on an isolated C-class flare.

Earth was under the influence of the high speed stream (HSS) from the huge coronal hole (CH). Maximum solar wind speeds near 830 km/s were recorded around 23UT on 25 October (DSCOVR), its current values now fluctuating between 670 and 750 km/s. Bz varied between -15 and +9 nT during the first half of the period, but is currently fluctuating between -6 and +6 nT. The interplanetary magnetic field (IMF) was directed away from the Sun (positive). Kp ranged from active to major geomagnetic storming, while K Dourbes ranged from quiet conditions to moderate storming.

Wind speeds are expected to remain above 500 km/s for the next two days, with periods of sustained negative Bz possible. Hence, mostly unsettled to moderate storm conditions are expected, with a small chance on another major storming interval (K-index = 7).

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 029, за даними 17 станцій.

Сонячні індекси за 25 Oct 2016

Число Вольфа, Катанія	///
Сонячний потік 10 см	///
AK Chambon La Forêt	///
AK Wingst	062
Розрахунковий індекс Ap	055
Розрахункова міжнародна кількість сонячних плям	018 - За даними 20 станцій

Зведення помітних подій

Надано Центром Аналізу Даних Сонячного Впливу (SIDC)© - SIDC - Оброблено SpaceWeatherLive

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