QRZ.RU EXPRESS от 26 октября 2020

Опубликовано: 2020 Oct 25 1230 UTC

SIDC URSIGRAM 01025
Состояние солнечной активности на 25 Oct 2020, 1230UT
Прогноз сделан для периода с 1230UT, 25 Oct 2020 до 27 Oct 2020)
Солнечная активность: очень низкая. Вероятность вспышек C-класса менее 50%
Геомагнитное поле: Слабая магнитная буря (A>=30, K=5)
Протонные вспышки: Спокойное состояние
Прогноз на 25 Oct 2020: плотность потока солнечного излучения: 072, A-индекс: 015
Прогноз на 26 Oct 2020: плотность потока солнечного излучения: 073, A-индекс: 028
Прогноз на 27 Oct 2020: плотность потока солнечного излучения: 073, A-индекс: 007

Комментарий (на английском языке): Solar flaring activity was at very low levels. No significant flares have been recorded. Solar activity is expected to remain at very low levels. No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at background levels over the past 24 hours. It is expected to stay at background levels for the next 24 hours. The greater than 2 MeV electron flux was at moderate levels, reaching 918 pfu at Oct 25 01:55UT, as we are still under the influence of the high solar wind speed caused by the High Speed Streams (HSS) originating from the Coronal hole (CH) crossing Central Meridian (CM) on Oct 19. It is expected to increase further in the 24 hours. The speed of the solar wind remained enhanced, varying between 515 and 595 km/s (DSCOVR), caused by the presence of the HSS originating from the CH crossing CM on Oct 19. The polarity of the Interplanetary Magnetic Field (IMF) was predominantly away from the Sun (phi angle to positive sector). Bz fluctuated between -5 and +3 nT. The magnitude of the magnetic field varied between 1 and 7 nT. Over the next 24 hours, the solar wind parameters are expected to remain at those levels, as additional effects of the HSS from the CH crossing CM on Oct 22 can be expected. The geomagnetic conditions were active (K Dourbes=4). The values registered for the past 24 hours were 0-4 for K Dourbes and 2-3 for NOAA Kp. Unsettled to active conditions, with a possibility of a minor storm, are expected for the next 24 hours.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 016,
получено на основе анализа результатов 14 станций наблюдения.
Солнечные индексы за 24 Oct 2020
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 072
A-индекс по данным обсерватории Chambon-la-Foret (F): 021
A-индекс по данным обсерватории Wingst (DL): 018
Планетарный А-индекс Ap: 020
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 017,
получено на основе анализа результатов 23 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

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