QRZ.RU EXPRESS от 19 августа 2020

Опубликовано: 2020 Aug 18 1237 UTC

SIDC URSIGRAM 00818
Состояние солнечной активности на 18 Aug 2020, 1237UT
Прогноз сделан для периода с 1230UT, 18 Aug 2020 до 20 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 18 Aug 2020: плотность потока солнечного излучения: 071, A-индекс: 003
Прогноз на 19 Aug 2020: плотность потока солнечного излучения: 071, A-индекс: 008
Прогноз на 20 Aug 2020: плотность потока солнечного излучения: 071, A-индекс: 014

Комментарий (на английском языке): The solar activity was low over the past 24 hours. The N0AA-AR 2771 is still on the disk. The X-ray flux was at A-class level and the solar activity is expected to remain low. The Coronal Mass Ejection (CME) that took place on Aug 16th 18:00UT has a small chance of a glancing blow from late Aug 19th. 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 fluctuated between nominal and moderate levels over the past 24 hours. It is expected to remain nominal to moderate levels over the next 24 hours. The solar wind speed near Earth varied between 280 and 340km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field (IMF) was predominantly oriented away the Sun (phi angle in the positive sector). Bz fluctuated between -6 and +5 nT. The magnitude of the magnetic field varied between 1 and 7 nT. A negative coronal hole crossed the central meridian on August 17th. An enhancement could be expected on Aug 20th, possibly combined with any effects from the CME. For the first part of the next 24 hours, the solar wind speed is expected to remain low, while by the end of Aug 19th to be enhanced as a response to the influence of the CME. The geomagnetic conditions were quiet. The values registered for the past 24 hours were 0-2 for K Dourbes and NOAA Kp. Quiet geomagnetic conditions are expected for the next 24 hours. The solar wind speed near Earth varied between 280 and 340km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field (IMF) was predominantly oriented away the Sun (phi angle in the positive sector). Bz fluctuated between -6 and +5 nT. The magnitude of the magnetic field varied between 1 and 7 nT. A negative Coronal hole crossed the central meridian on August 17th. An enhancement could be expected on Aug 20th, possibly combined with any effects from the CME. For the next 24 hours the solar wind speed is expected to remain low for the beginnig of that time period, while by the end of Aug 19th to be enhanced as a response to the influence of the CME.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 012,
получено на основе анализа результатов 21 станций наблюдения.
Солнечные индексы за 17 Aug 2020
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 071
A-индекс по данным обсерватории Chambon-la-Foret (F): 008
A-индекс по данным обсерватории Wingst (DL): 004
Планетарный А-индекс Ap: 003
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 000,
получено на основе анализа результатов 30 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

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