QRZ.RU EXPRESS от 26 августа 2020

Опубликовано: 2020 Aug 25 1231 UTC

SIDC URSIGRAM 00825
Состояние солнечной активности на 25 Aug 2020, 1230UT
Прогноз сделан для периода с 1230UT, 25 Aug 2020 до 27 Aug 2020)
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 25 Aug 2020: плотность потока солнечного излучения: 072, A-индекс: 011
Прогноз на 26 Aug 2020: плотность потока солнечного излучения: 072, A-индекс: 017
Прогноз на 27 Aug 2020: плотность потока солнечного излучения: 072, A-индекс: 011

Комментарий (на английском языке): Solar X-ray flux has been below background (B) level throughout the period. There are no spotted regions on disc and X-ray flux is expected to remain at or below background (B) values. There were no Earth directed coronal mass ejections observed in coronagraph data. 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 nominal levels over the past 24 hours and is expected to remain so over the next 24 hours. Another low latitude coronal hole with positive polarity is currently rotating over the central meridian in the Northern hemisphere (It is currently not connected to the polar coronal hole). It's impact on near Earth Solar wind may be expected on August 28. Solar wind conditions were close to nominal. Solar wind speed decreased from close to 400 km/s at the start of the period to under 350 km/s presently. The magnetic field strength hovered around 5nT and remained at that level. The magnetic field phi angle was mainly in the towards sector. There are hence no signs yet of the expected Solar wind enhancement, due to the possible influence of a high speed stream from the extension of the Northern (positive polarity) polar coronal hole. But, it may still set through in the next 48 hours. Afterwards, from August 28 onwards, we may see again some enhancement related to the coronal hole currently transiting the central meridian. Geomagnetic conditions were quiet (both NOAA Kp and local K Dourbes 0-2). Geomagnetic conditions are expected to be mostly quiet to unsettled, with some isolated active periods not excluded depending on the strength of the expected Solar wind enhancements.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 000,
получено на основе анализа результатов 12 станций наблюдения.
Солнечные индексы за 24 Aug 2020
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 070
A-индекс по данным обсерватории Chambon-la-Foret (F): 005
A-индекс по данным обсерватории Wingst (DL): 003
Планетарный А-индекс Ap: 003
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 000,
получено на основе анализа результатов 31 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

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