Перегляд архіву пʼятниця, 28 червня 2013

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2013 Jun 28 1234 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

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

Сонячні протони

Quiet

	10 см потік	Ap
28 Jun 2013	098	026
29 Jun 2013	098	019
30 Jun 2013	098	007

Бюлетень

Solar activity has been eruptive during the past 24 hours, featuring three C flares, from NOAA AR 11777 and 11778. The brightest flare was a C7.3 flare released by NOAA AR 11778 with peak time at 03:37 UT on June 28. More C flares are possible within the next 48 hours, with a chance for an M flare. NOAA AR 11777 released two CMEs (observed by LASCO C2 at 20:37 on June 27 and 02:00 on June 28). The first CME is not expected to be geo- effective, while there is a slight chance for a glancing blow from the second CME on July 1st. ACE detected a shock in the solar wind at 13:53 UT on June 27, probably due to some unidentified CME. The solar wind speed jumped from about 380 km/s to around 460 km/s, and has currently decreased again to 365 km/s. The IMF jumped from 3 to 8 nT, has subsequently further risen to 12 nT near 2h UT on June 28, and has since been gradually decreasing, with current values around 9 nT. Geomagnetic activity was at quiet to active levels (K Dourbes between 1 and 4) during the past 24 hours. Quiet to active conditions (K Dourbes < 4) are expected for June 28, with a chance for a minor geomagnetic storm (K Dourbes = 5). On June 29, quiet to active levels (K Dourbes = 4) with minor storm periods are possible as a consequence of the expected arrival at Earth of a new coronal hole high speed stream. Quiet geomagnetic levels (K Dourbes < 4) are likely on June 30.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 050, за даними 07 станцій.

Сонячні індекси за 27 Jun 2013

Число Вольфа, Катанія	058
Сонячний потік 10 см	100
AK Chambon La Forêt	019
AK Wingst	010
Розрахунковий індекс Ap	009
Розрахункова міжнародна кількість сонячних плям	043 - За даними 21 станцій

Зведення помітних подій

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

Весь час у UTC

<< На сторінку денного огляду