QRZ.RU EXPRESS от 29 октября 2020

Опубликовано: 2020 Oct 28 1231 UTC

SIDC URSIGRAM 01028
Состояние солнечной активности на 28 Oct 2020, 1230UT
Прогноз сделан для периода с 1230UT, 28 Oct 2020 до 30 Oct 2020)
SOLAR FLARES : C-class flares expected, (probability >=50%)
Геомагнитное поле: Возмущенное (A>=20, K=4)
Протонные вспышки: Спокойное состояние
Прогноз на 28 Oct 2020: плотность потока солнечного излучения: 082, A-индекс: 021
Прогноз на 29 Oct 2020: плотность потока солнечного излучения: 084, A-индекс: 019
Прогноз на 30 Oct 2020: плотность потока солнечного излучения: 085, A-индекс: 017

Комментарий (на английском языке): NOAA AR 2778 has evolved from beta into beta-gamma magnetic field configuration, also increasing its area and sunspot number. It is the only visible active region on disk. It produced two C-class flares in the past 24 hours, the largest was a C1.5 peaking at 13:41 UT on 27 October. More C-class can be expected, M-class flares are possible. A filament erupted close to central meridian (around N30 in latitude) at 22:00 UT on 26 October. The related CME could possibly arrive to the Earth on 1 November (estimated time 01:00 UT), since the speed is low (around 300 km/s) a strong geomagnetic impact is not expected. The greater than 10 MeV proton flux was at background levels over the past 24 hours. It is expected to stay at background levels for the next 24 hours. The greater than 2 MeV electrons are above the 10^3 pfu threshold, as the Earth is still under the influence of a High Speed Stream (HSS) from a coronal hole (CH). The electrons are expected to stay at elevated levels in the next 24 h. The speed of the solar wind was fairly constant around 500 km/s in the past 24 hours. The Earth is still inside the HSS from a positive polarity coronal hole. Bz was never below -4 nT and B reached 4 nT. Elevated solar wind speeds are expected for the next 24 hours. The geomagnetic conditions were mostly unsettled both locally and at planetary levels (Kp = 3, KDourbes = 3). Unsettled to active conditions can be expected in the next 24 hours, as the Earth is still under the influence of the HSS.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 025,
получено на основе анализа результатов 17 станций наблюдения.
Солнечные индексы за 27 Oct 2020
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 082
A-индекс по данным обсерватории Chambon-la-Foret (F): 012
A-индекс по данным обсерватории Wingst (DL): 009
Планетарный А-индекс Ap: 008
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 042,
получено на основе анализа результатов 16 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

---