QRZ.RU EXPRESS от 18 сентября 2025

Опубликовано: 17 сентября 2025 в 1231 UTC
SIDC URSIGRAM 50917
Состояние солнечной активности на 17 сентября 2025, 1230UT
Прогноз SIDC
SOLAR FLARES : C-class flares expected, (probability >=50%)
Геомагнитное поле: Спокойное состояние (A<20 and K<4)
Солнечные протоны: Спокойное состояние
Прогноз на 17 сентября 2025: Солнечный поток в диапазоне 10см: 136 / AP-индекс: 008
Прогноз на 18 сентября 2025: Солнечный поток в диапазоне 10см: 136 / AP-индекс: 007
Прогноз на 19 сентября 2025: Солнечный поток в диапазоне 10см: 136 / AP-индекс: 005
Комментарий (на английском языке): Solar Active Regions and flaring: Solar flaring activity was at low levels over the past 24 hours with only C-class flares identified. A total of 8 numbered sunspot groups were identified on the visible solar disk, most classified as magnetic type beta. The strongest activity was a C3.8 flare with peak time at 13:14 UTC on Sept 16. The flare was produced by SIDC Sunspot Group 637 (NOAA Active Region 4220). This region together with SIDC Sunspot Group 643 (NOAA Active Region 4223) was responsible for most of the flaring activity over the past 24 hours. SIDC Sunspot Group 621 (NOAA Active Regions 4216, 4222) and SIDC Sunspot Group 640 (NOAA Active Region 4217) remained the largest regions on the visible solar disk. SIDC Sunspot Group 637 (NOAA Active Region 4220) and SIDC Sunspot Group 642 (NOAA Active Region 4221) have exhibited further growth. The solar flaring activity over the next 24 hours is expected to remain at low levels with very likely C-class flares and chances for isolated M-class flaring. Coronal mass ejections: No Earth-directed coronal mass ejections (CMEs) have been identified in the available coronagraph imagery over the past 24 hours. Solar wind: Over the past 24 hours the solar wind parameters (as measured by ACE) remained under the influence of a high speed stream associated with the negative polarity SIDC Coronal Hole 116. The solar wind speed was predominantly in the range of 600 km/s to 750 km/s. The magnitude of the interplanetary magnetic field, B, was at nominal levels with a maximum of 5.5 nT and a minimum Bz component of - 4.5 nT. The B field phi angle remained predominantly in the negative sector (directed towards the Sun). The solar wind conditions are expected to continue to be under a waning HSS influence over the next 24 hours and gradually return towards slow solar wind background by Sept 19. Geomagnetism: The global geomagnetic conditions over the past 24 hours were at active levels with only quiet to unsettled conditions registered locally over Belgium. The global geomagnetic conditions over the next 24 hours are expected to be predominantly at quiet to unsettled levels with small chances for isolated active periods. Proton flux levels: Over the past 24 hours the greater than 10 MeV GOES proton flux has been at nominal levels and is expected to remain at nominal levels over the next days. Electron fluxes at GEO: The greater than 10 MeV electron flux (as measured by GOES 18 and GOES 19) has exceeded the 1000 pfu threshold over the last 24 hours and is expected to exceed the threshold again over the next 24 hours. The 24-hour electron fluence has reached moderate levels and is expected to remain at moderate levels in the next 24 hours.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 125,
получено на основе анализа результатов 13 станций наблюдения.
Солнечные индексы за 16 Sep 2025
Число Вольфа по данным обсерватории Катания (IT9): 142
Солнечный поток в диапазоне 10см: 135
A-индекс по данным обсерватории Chambon-la-Foret (F): 020
A-индекс по данным обсерватории Wingst (DL): 016
Планетарный А-индекс Ap: 018
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 128,
получено на основе анализа результатов 23 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
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