QRZ.RU EXPRESS от 21 октября 2025

Опубликовано: 20 октября 2025 в 1231 UTC
SIDC URSIGRAM 51020
Состояние солнечной активности на 20 октября 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 20 октября 2025: Солнечный поток в диапазоне 10см: 146 / AP-индекс: 012
Прогноз на 21 октября 2025: Солнечный поток в диапазоне 10см: 144 / AP-индекс: 013
Прогноз на 22 октября 2025: Солнечный поток в диапазоне 10см: 144 / AP-индекс: 007
Комментарий (на английском языке): Solar Active Regions and flaring: Solar flaring activity was moderate over the past 24 hours, with two M-class flares recorded. The largest flare was an M1.8 flare (SIDC Flare 5840), peaking on October 19 at 20:15 UTC, originating from behind the west limb and likely associated with SIDC Sunspot Group 639 (NOAA Active Region 4246). SIDC Sunspot Group 621 (NOAA Active Region 4248), which is now rotating over the west limb, produced an M1.0 flare (SIDC Flare 5845), peaking on October 20 at 05:27 UTC. Isolated low-level flaring was also produced by active regions behind the east limb. The remaining active regions on the disk are relatively simple (magnetic type alpha or beta) and did not produce any significant flaring activity. Solar flaring activity is expected to be at low to moderate levels over the next 24 hours, with C-class flares very likely and a chance for M-class flares. Coronal mass ejections: No Earth-directed coronal mass ejections (CME) have been detected in the available coronagraph imagery over the past 24 hours. Solar wind: Over the past 24 hours, the solar wind parameters were slightly disturbed under the influence of a high-speed stream (HSS). The interplanetary magnetic field reached values up to 10 nT before decreasing to around 4 nT. The solar wind speed ranged between 500 and 650 km/s. The southward component of the interplanetary magnetic field fluctuated between -10 nT and 8 nT. The magnetic field orientation was predominantly in the negative sector (field directed towards the Sun). Solar wind conditions are expected to remain slightly elevated over the next days due to the influence of a high-speed stream from a recurrent negative polarity coronal hole (SIDC Coronal Hole 126). Geomagnetism: Geomagnetic conditions were quiet to unsettled both globally and locally over Belgium (NOAA Kp: 1 to 3; K-Bel: 1 to 3). Mostly unsettled geomagnetic conditions are expected over the next 24 hours, with a chance of isolated active periods due to the ongoing high-speed stream influence. 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): 109,
получено на основе анализа результатов 12 станций наблюдения.
Солнечные индексы за 19 Oct 2025
Число Вольфа по данным обсерватории Катания (IT9): ///
Солнечный поток в диапазоне 10см: 149
A-индекс по данным обсерватории Chambon-la-Foret (F): 022
A-индекс по данным обсерватории Wingst (DL): 020
Планетарный А-индекс Ap: 020
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 110,
получено на основе анализа результатов 09 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
19 2003 2015 2026 ////// M1.8 58/4246
20 0510 0527 0538 ////// M1.0 59/4248 TM/1