QRZ.RU EXPRESS от 19 августа 2025

Опубликовано: 18 августа 2025 в 1231 UTC
SIDC URSIGRAM 50818
Состояние солнечной активности на 18 августа 2025, 1230UT
Прогноз SIDC
SOLAR FLARES : C-class flares expected, (probability >=50%)
Геомагнитное поле: Возмущенное (A>=20, K=4)
Солнечные протоны: Спокойное состояние
Прогноз на 18 августа 2025: Солнечный поток в диапазоне 10см: 117 / AP-индекс: 005
Прогноз на 19 августа 2025: Солнечный поток в диапазоне 10см: 117 / AP-индекс: 023
Прогноз на 20 августа 2025: Солнечный поток в диапазоне 10см: 115 / AP-индекс: 022
Комментарий (на английском языке): Solar Active Regions and flaring: Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C3.3 flare (SIDC Flare 5166) peaking on August 17 at 19:58 UTC, which was produced by SIDC Sunspot Group 598 (NOAA Active Region 4180). A total of 6 numbered sunspot groups were identified on the disk over the past 24 hours, with only Alpha or Beta magnetic configuration. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares likely and a small chance for M-class flares. Coronal mass ejections: No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images. Coronal holes: The negative polarity mid-latitude SIDC Coronal hole 116 ( that first reached the central meridian on August 15) has finished its transit across the central meridian. Solar wind: The solar wind at the Earth is slow, with speeds around 340 km/s and interplanetary magnetic field reaching a maximum of 10 nT with the Bz reaching a minimum value of -7 nT. The solar wind speed is expected to become enhanced on 18-19 August, due to the potential arrival of the high- speed stream (HSS) associated with the SIDC coronal hole 116. Geomagnetism: Geomagnetic activity was quiet over the past 24 hours both globally and locally. In response to the expected arrival of high-speed stream associated with SIDC Coronal Hole 116, geomagnetic conditions are expected to reach active level on August 18-19. Proton flux levels: The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days. Electron fluxes at GEO: The greater than 2 MeV electron flux measured by GOES 18 and GOES 19 remained above the 1000 pfu threshold. Electron flux levels are expected to fluctuate around the 1000 pfu threshold over the next 24 hours. The 24-hour electron fluence remains at moderate levels and is expected to remain so over the next 24 hours.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 059,
получено на основе анализа результатов 24 станций наблюдения.
Солнечные индексы за 17 Aug 2025
Число Вольфа по данным обсерватории Катания (IT9): ///
Солнечный поток в диапазоне 10см: 117
A-индекс по данным обсерватории Chambon-la-Foret (F): 006
A-индекс по данным обсерватории Wingst (DL): 006
Планетарный А-индекс Ap: 004
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 083,
получено на основе анализа результатов 26 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
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