Перегляд архіву вівторок, 17 січня 2017

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2017 Jan 17 1327 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10 см потік	Ap
17 Jan 2017	078	004
18 Jan 2017	079	005
19 Jan 2017	078	017

Бюлетень

There are two numbered sunspot group presently visible on the solar disc, Catania sunspot group 77 and 78 (NOAA ARs 2625 and 2626), and both of them have alpha configuration of the photospheric magnetic field. Accordingly, solar activity is low, with no C-class and only one B-class flares reported during last 24 hours. We expect solar activity to remain on the same low level. The faint and slow partial halo CME was first seen in the SOHO LASCO C2 field of view at about 21:30 UT (straight after the data gap) on January 16. The bulk of the CME mass was directed northward from the Sun-Earth line, and this stealth-like CME with presently unclear solar counterpart, will most probably not arrive to the Earth. More will be reported when additional data become available.

The Earth is still inside the slow solar wind with the speed, similar as reported yesterday, of about 320 km/s. The interplanetary magnetic field magnitude is about 6 nT. The fast solar wind, associated with the elongated equatorial coronal hole extended towards the south, which has crossed central meridian yesterday, might arrive at the Earth late on January 18 or in the morning of January 19. The geomagnetic conditions are presently quiet and we expect them to stay so in the coming hours. The expected arrival of the fast solar wind might induced disturbed geomagnetic conditions (we expect up to K=4).

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 031, за даними 17 станцій.

Сонячні індекси за 16 Jan 2017

Число Вольфа, Катанія	025
Сонячний потік 10 см	078
AK Chambon La Forêt	005
AK Wingst	///
Розрахунковий індекс Ap	002
Розрахункова міжнародна кількість сонячних плям	024 - За даними 17 станцій

Зведення помітних подій

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

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