QRZ.RU EXPRESS от 28 октября 2025

Опубликовано: 27 октября 2025 в 1231 UTC
SIDC URSIGRAM 51027
Состояние солнечной активности на 27 октября 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 27 октября 2025: Солнечный поток в диапазоне 10см: 124 / AP-индекс: 019
Прогноз на 28 октября 2025: Солнечный поток в диапазоне 10см: 124 / AP-индекс: 054
Прогноз на 29 октября 2025: Солнечный поток в диапазоне 10см: 124 / AP-индекс: 029
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. A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. The largest flare was a C1.7 flare (SIDC Flare 5879) peaking on October 27 at 10:21 UTC, which was produced by SIDC Sunspot Group 674 (NOAA Active Regions 4257, 4262). Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a small chance for M-class flares. Coronal mass ejections: A wide CME (angular width of about 100 degrees) was first observed in LASCO C2 at 20:00 UT on 26 October. We are currently waiting for additional data in order to better assess whether the CME has an Earth-directed component; if so, a possible arrival on 29 October cannot be excluded. Coronal holes: A recurrent large coronal hole, SIDC Coronal Hole 123 (mid- latitude coronal hole with a positive polarity), first reached the central meridian on October 25. Solar wind: Over the past 24 hours, solar wind parameters (ACE and DSCOVR) reflected a slow solar wind regime. The solar wind speed ranged between 400 km/s and 350 km/s. The interplanetary magnetic field is around 6 nT. Slow solar wind conditions are expected over the next 24 hours, with a chance of a weak enhancement on 27 October due to possible glancing blow from the CME on 23 October (SIDC CME 586). A high speed stream is expected in 24 hours from a large positive polarity coronal hole (SIDC Coronal Hole 123). Geomagnetism: Geomagnetic conditions were quiet globally and quiet to unsettled locally over Belgium (NOAA Kp: up to 1; K-Bel: up to 2). There’s a small chance of active to minor storm periods today due to a possible glancing blow from the CME from 23 October (SIDC CME 586). In about 24 hours, the expected high-speed stream arrival from a large recurrent positive polarity coronal hole (SIDC Coronal Hole 123) may cause moderate storm levels. Proton flux levels: The greater than 10 MeV GOES proton flux was below the 10 pfu threshold level over the past 24 hours and is expected to remain so for the next 24 hours. Electron fluxes at GEO: The greater than 2 MeV electron flux measured by GOES 18 and GOES 19 was below the 1000 pfu threshold. The greater than 2 MeV electron flux is expected to remain below the 1000 pfu threshold over the next 24 hours. The 24-hour electron fluence was at normal levels and is expected to be at normal levels over the next 24 hours.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 090,
получено на основе анализа результатов 13 станций наблюдения.
Солнечные индексы за 26 Oct 2025
Число Вольфа по данным обсерватории Катания (IT9): ///
Солнечный поток в диапазоне 10см: 124
A-индекс по данным обсерватории Chambon-la-Foret (F): 007
A-индекс по данным обсерватории Wingst (DL): 005
Планетарный А-индекс Ap: 004
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 104,
получено на основе анализа результатов 19 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
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