QRZ.RU EXPRESS от 27 августа 2025

Опубликовано: 26 августа 2025 в 1231 UTC
SIDC URSIGRAM 50826
Состояние солнечной активности на 26 августа 2025, 1230UT
Прогноз SIDC
Солнечные вспышки. Ожидаются вспышки класса M (вероятность >=50%)
Геомагнитное поле: Возмущенное (A>=20, K=4)
Солнечные протоны: Ожидается увеличение возмущенности (уровни активности повысятся,
но точного числового прогноза нет)
Прогноз на 26 августа 2025: Солнечный поток в диапазоне 10см: 175 / AP-индекс: 020
Прогноз на 27 августа 2025: Солнечный поток в диапазоне 10см: 180 / AP-индекс: 016
Прогноз на 28 августа 2025: Солнечный поток в диапазоне 10см: 182 / AP-индекс: 007
Комментарий (на английском языке): Solar Active Regions and flaring: Solar flaring activity was moderate over the past 24 hours, with 4 M-class flares identified. The largest flare was a M4.5 flare (SIDC Flare 5237) peaking on August 26 at 05:25 UTC, which was produced by SIDC Sunspot Group 614 (NOAA Active Region 4197). That region and SIDC Sunspot Group 617 (NOAA Active Region 4199), both located close to the east limb, are driving most of the activity. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a small chance for X-class flares. Coronal mass ejections: No Earth-directed Coronal Mass Ejections (CMEs) have been observed in the last 24 hours. Coronal holes: SIDC Coronal Hole 126 (northern mid-latitude coronal hole with negative polarity) is located in the western hemisphere and its related high speed solar wind stream may arrive to the Earth in the next 24 hours. Solar wind: The Earth is inside slow solar wind with speeds around 400 km/s and interplanetary magnetic fields of about 5 nT (directed towards the Sun, negative polarity). A high speed solar wind stream is expected to arrive in the next 24 hours, with probably only mild effects. Geomagnetism: Geomagnetic conditions have been quiet to unsettled (Kp and B_Bel between 0 and 3). Similar conditions are expected until the arrival of the high speed solar wind stream in the next 24 hours (mostly active conditions expected then). Proton flux levels: The greater than 10 MeV proton flux has continued to increase slowly and has almost reached the 10 pfu threshold, without going above it (currently at 9 pfu). A warning condition forecast is issued for the next 48 hours. Electron fluxes at GEO: The greater than 2 MeV electron flux as measured by GOES 18 and 19 remained below the 1000 pfu alert threshold (except for a minimal crossing of the threshold between 13:00 and 26:00 UTC on 25 August, in GOES 19), similar conditions expected for the next 24 hours. The 24 h electron fluence was at normal levels and is expected to remain so.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 184,
получено на основе анализа результатов 23 станций наблюдения.
Солнечные индексы за 25 Aug 2025
Число Вольфа по данным обсерватории Катания (IT9): 125
Солнечный поток в диапазоне 10см: 175
A-индекс по данным обсерватории Chambon-la-Foret (F): 016
A-индекс по данным обсерватории Wingst (DL): 011
Планетарный А-индекс Ap: 009
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 139,
получено на основе анализа результатов 32 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
25 1506 1518 1528 ////// M1.2 ///4199
25 1530 1538 1541 ////// M1.1 ///4199
26 0022 0030 0035 ////// M3.3 96/4199
26 0509 0525 0540 ////// M4.5 95/4197