Перегляд архіву четвер, 7 березня 2019

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2019 Mar 07 1230 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
07 Mar 2019	072	005
08 Mar 2019	073	007
09 Mar 2019	073	006

Бюлетень

The solar activity has been quiet over the past 24 hours. The X-ray flux was below C-level. The sunspot (Catania sunspot group 9, NOAA Active region 2734) remained stable and continued to show mild activity with few A and small B-class flares. Solar activity is expected to remain at low levels with a very small chance of C-class flare.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

The solar wind parameters are currently slightly enhanced due to several small patchy equatorial coronal holes (negative polarity) that have now rotated into the west hemisphere. During the last 24-hour, the solar wind speed was about 500 km/s at the beginning of the period and then decreased to about 400 km/s. The total interplanetary magnetic field strength ranged between 5 nT and 8 nT. The Bz component fluctuated between -4 nT and 6.5 nT. Another small patchy equatorial coronal hole (negative polarity) is currently facing Earth. The slightly enhanced solar wind parameters are expected to persist for more days, due to all those small patchy equatorial coronal holes on the surface of the Sun.

The geomagnetic conditions were quiet to unsettle over the past 24 hours, with K-index (Dourbes) ranging from 1 and 3, and Kp (NOAA) ranging from 1 and 2. In response to the slightly enhanced interplanetary magnetic field and possible prolonged period of southward directed Bz component, the geomagnetic conditions are expected to remain quiet to unsettle.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 017, за даними 15 станцій.

Сонячні індекси за 06 Mar 2019

Число Вольфа, Катанія	021
Сонячний потік 10 см	073
AK Chambon La Forêt	012
AK Wingst	009
Розрахунковий індекс Ap	008
Розрахункова міжнародна кількість сонячних плям	017 - За даними 21 станцій

Зведення помітних подій

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

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