Перегляд архіву пʼятниця, 7 вересня 2018

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2018 Sep 07 1230 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

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

Сонячні протони

Quiet

	10 см потік	Ap
07 Sep 2018	067	011
08 Sep 2018	067	010
09 Sep 2018	067	006

Бюлетень

Solar activity was at very low levels. The Sun remained spotless. No earth-directed coronal mass ejections (CMEs) were observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. A trans-equatorial extension of the positive polarity coronal hole (CH) at the Sun's north pole has started its transit of the Central Meridian early on 7 September.

Solar activity is expected to remain at very low levels.

Solar wind was steady at nominal values, until the arrival of the co- rotating interaction region (CIR) and wind stream from the negative polarity CH. The CIR arrived around 19:30UT, with solar wind density increasing from about 5 to 24 particles/cm3 by midnight, and the interplanetary magnetic field changing direction from mostly away to mostly towards the Sun. Solar wind speed started to increase from 02:30UT onwards, reaching a maximum near 510 km/s by 08UT, and is steady since then (DSCOVR). Bz varied between -4 and +4 nT, being mostly positive, and with a strong positive episode near +10 nT from 04UT till 07UT, with little interruption.

Due to the predominately positive Bz, mostly quiet geomagnetic conditions were observed. Quiet to unsettled geomagnetic conditions are expected, with a decreasing chance on an active episode as the CH wind stream is passing by.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 000, за даними 24 станцій.

Сонячні індекси за 06 Sep 2018

Число Вольфа, Катанія	000
Сонячний потік 10 см	067
AK Chambon La Forêt	010
AK Wingst	005
Розрахунковий індекс Ap	004
Розрахункова міжнародна кількість сонячних плям	000 - За даними 26 станцій

Зведення помітних подій

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

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