QRZ.RU EXPRESS от 20 сентября 2025

Опубликовано: 19 сентября 2025 в 1231 UTC
SIDC URSIGRAM 50919
Состояние солнечной активности на 19 сентября 2025, 1230UT
Прогноз SIDC
Солнечные вспышки. Ожидаются вспышки класса M (вероятность >=50%)
Геомагнитное поле: Спокойное состояние (A<20 and K<4)
Солнечные протоны: Спокойное состояние
Прогноз на 19 сентября 2025: Солнечный поток в диапазоне 10см: 150 / AP-индекс: 003
Прогноз на 20 сентября 2025: Солнечный поток в диапазоне 10см: 151 / AP-индекс: 004
Прогноз на 21 сентября 2025: Солнечный поток в диапазоне 10см: 150 / 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 7 numbered sunspot groups were identified on the visible solar disk with SIDC Sunspot Group 637 (NOAA Active Region 4220) growing to be the largest and most complex active region, being classified as magnetic type beta-gamma- delta. This region was responsible for most of the flaring activity over the past 24 hours, including a C3.6 flare (SIDC Flare 5515) with peak time at 15:41 UTC on Sept 18. The remaining regions are classified as magnetic type beta. Isolated low C-class flaring was produced by SIDC Sunspot Group 639 (NOAA Active Region 4219) and SIDC Sunspot Group 643 (NOAA Active Region 4223). The solar flaring activity over the next 24 hours is expected to be at low to moderate levels with very likely C-class flares and 60% chances for 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. Coronal holes: A mid-latitude negative polarity coronal hole (SIDC Coronal Hole 126) has reached the central meridian on Sept 19. A high speed stream emanating from this coronal hole is expected to reach the Earth on Sept 22. Solar wind: Over the past 24 hours the solar wind parameters (as measured by ACE) have returned to slow solar wind conditions. The solar wind speed has further decreased to 400 km/s. The magnitude of the interplanetary magnetic field, B, remained weak with a maximum of 4.5 nT and a minimum Bz component of - 2.7 nT. The B field phi angle remained predominantly in the negative sector (directed towards the Sun). The solar wind conditions are expected to be at background slow solar wind levels over the next days. Geomagnetism: The geomagnetic conditions over the past 24 hours were globally quiet with quiet to unsettled levels registered locally over Belgium. The geomagnetic conditions over the next days are expected to be predominantly quiet. 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 24 hours, pending no explosive eruptive activity related to the evolution of SIDC Sunspot Group 637 (NOAA Active Region 4220). Electron fluxes at GEO: The greater than 10 MeV GOES electron flux has been entirely above the 1000 pfu threshold over the last 24 hours and is expected to exceed the threshold for long periods of time over the next 24 hours. The 24-hour electron fluence was at moderate levels and is expected to remain at moderate levels over the next days.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 145,
получено на основе анализа результатов 17 станций наблюдения.
Солнечные индексы за 18 Sep 2025
Число Вольфа по данным обсерватории Катания (IT9): 154
Солнечный поток в диапазоне 10см: 150
A-индекс по данным обсерватории Chambon-la-Foret (F): 009
A-индекс по данным обсерватории Wingst (DL): 007
Планетарный А-индекс Ap: 007
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 137,
получено на основе анализа результатов 18 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
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