Перегляд архіву субота, 2 вересня 2017

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2017 Sep 02 1235 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

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

Сонячні протони

Quiet

	10 см потік	Ap
02 Sep 2017	094	024
03 Sep 2017	093	012
04 Sep 2017	092	006

Бюлетень

Over the past 24 hours solar activity remained low. There were four sunspot regions, and only Catania group 47 (NOAA region 2674) sowed some flaring activity and produced four C-class flares. The largest one was a C2.0-class flare with a peak-time at 15:37 UT September 1. Catania group 43 (NOAA region 2672) is on West solar limb and will disappear in a couple of hours. The photospheric magnetic complexity of Catania group 47 (NOAA region 2674) has increased, therefore we expect a higher probability of C-class flare with possibly the occurrence of an M-class flare. A new active region is turning over the East solar limb, which might start to also contribute the solar activity.

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery and the solar protons remains at background level.

The Earth remained in the fast solar wind with the speed that has slowly decreased from 700 to about 600 Km/s. The interplanetary magnetic field magnitude has also slowly decreased from 10 nT to about 4 nT, and the Bz component fluctuating between -5 and 2 nT.

The geomagnetic conditions were active with K-Dourbes ranging between 2 and 4, and Kp-NOAA between 2 and 5. The observed moderated storm (Kp-NOAA = 5) on September 2, between 03:00 and 09:00 UT was due to Bz component that stayed negative for a longer period. The geomagnetic conditions are expected to vary between unsettled to active conditions until the high speed stream has fade, and then to reduce to quiet to unsettled on September 3.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 063, за даними 22 станцій.

Сонячні індекси за 01 Sep 2017

Число Вольфа, Катанія	061
Сонячний потік 10 см	093
AK Chambon La Forêt	030
AK Wingst	020
Розрахунковий індекс Ap	020
Розрахункова міжнародна кількість сонячних плям	069 - За даними 31 станцій

Зведення помітних подій

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

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