QRZ.RU EXPRESS от 25 марта 2021

Опубликовано: 2021 Mar 24 1230 UTC

SIDC URSIGRAM 10324
Состояние солнечной активности на 24 Mar 2021, 1230UT
Прогноз сделан для периода с 1230UT, 24 Mar 2021 до 26 Mar 2021)
Солнечная активность: очень низкая. Вероятность вспышек C-класса менее 50%
Геомагнитное поле: Спокойное состояние (A<20 and K<4)
Протонные вспышки: Спокойное состояние
Прогноз на 24 Mar 2021: плотность потока солнечного излучения: 079, A-индекс: 007
Прогноз на 25 Mar 2021: плотность потока солнечного излучения: 082, A-индекс: 007
Прогноз на 26 Mar 2021: плотность потока солнечного излучения: 082, A-индекс: 007

Комментарий (на английском языке): Solar activity was at very low levels in the past 24 hours. NOAA AR 2811 and Catania group 81 produced only minor B-class flares. A new small active region that rotated into view has been numbered by NOAA as AR 2812 (alpha magnetic field configuration). Solar activity is expected to remain at low levels, with a small chance of a C-class flare. A Coronal Mass Ejection (CME) was observed on 22 March, 01:10 UT. It has an Earth-directed component and its speed is estimated to 250-300 km/s. It is expected to reach Earth on 26 March. An equatorial negative polarity coronal hole crossed the central meridian, its associated high speed stream will arrive at the Earth in about 3 days. The greater than 10 MeV proton flux was below nominal levels over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux exceeded the 1000 pfu threshold in the past 24 hours and is expected to remain elevated in the next 24 hours. The 24h electron fluence was at moderate levels in the last 24 hours and is expected to remain at moderate levels in the next 24 hours. The solar wind speed decreased from 500 km/s to 420 km/s. The interplanetary magnetic field magnitude varied between 1 and 5 nT. Bz was between 3 and -4 nT. The magnetic field phi angle showed alternating polarity. Slow solar wind conditions are expected in the next 24 hours. Geomagnetic conditions were quiet to unsettled, Kp varied between 2 and 3 and local K Dourbes between 1 and 3 over the past 24 hours. The CME observed on 20 March could still arrive today and cause at most active conditions (otherwise mostly quiet conditions expected).Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 027,
получено на основе анализа результатов 16 станций наблюдения.
Солнечные индексы за 23 Mar 2021
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 079
A-индекс по данным обсерватории Chambon-la-Foret (F): 019
A-индекс по данным обсерватории Wingst (DL): 013
Планетарный А-индекс Ap: 012
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 025,
получено на основе анализа результатов 20 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

---