QRZ.RU EXPRESS от 29 ноября 2020

Опубликовано: 2020 Nov 28 1231 UTC

SIDC URSIGRAM 01128
Состояние солнечной активности на 28 Nov 2020, 1230UT
Прогноз сделан для периода с 1230UT, 28 Nov 2020 до 30 Nov 2020)
SOLAR FLARES : C-class flares expected, (probability >=50%)
Геомагнитное поле: Спокойное состояние (A<20 and K<4)
Протонные вспышки: Спокойное состояние
Прогноз на 28 Nov 2020: плотность потока солнечного излучения: 107, A-индекс: 008
Прогноз на 29 Nov 2020: плотность потока солнечного излучения: 108, A-индекс: 005
Прогноз на 30 Nov 2020: плотность потока солнечного излучения: 108, A-индекс: 005

Комментарий (на английском языке): Solar activity was at low levels in the past 24 hours. NOAA Active Region (AR) 2786 (Beta-Gamma) produced multiple B and low-level C-class flares. NOAA AR 2785 (Beta) developed trailer spots and showed signs of flux emergence. NOAA AR 2783 exhibited some decay and is now an Alpha region. The newly numbered NOAA AR 2787 (N30E60, Catania sunspot group 58) which has recently rotated onto the solar disk has magnetic type Alpha and was quiet. The solar activity is expected to remain at low levels with a high chance for C-class flares, particularly from NOAA AR 2786. An isolated M-class flare also remains possible. No Earth directed CMEs have been detected in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux exceeded the 1000 pfu alert threshold between 13:00 and 20:40 UT Nov 27. During the next 24 hours, the electron flux is expected to exceed the 1000 pfu level again. The 24h electron fluence was at moderate levels and is expected to be at normal to moderate levels over the next 24 hours. Over the past 24 hours, the solar wind speed ranged between 390 and 490 km/s (DSCOVR). The total magnetic field strength had a maximum value of 6 nT. Bz had a minimum value of -5 nT. The interplanetary magnetic field was predominantly directed away from the Sun (phi angle in the positive sector). Over the next 24 hours, the solar wind parameters are expected to return to nominal conditions as the influence of the extension to the northern polar Coronal Hole (CH) dwindles. Geomagnetic conditions were at quiet to unsettled levels over the past 24 hours (NOAA Kp and local k Dourbes recorded values of 1-3 and 0-3, respectively). Geomagnetic conditions are expected to continue at quiet to unsettled levels for the next 24 hours and then return to quiet levels as the influence of the CH passes.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 076,
получено на основе анализа результатов 15 станций наблюдения.
Солнечные индексы за 27 Nov 2020
Число Вольфа по данным обсерватории Катания (IT9): 083
Плотность потока излучения: 106
A-индекс по данным обсерватории Chambon-la-Foret (F): 015
A-индекс по данным обсерватории Wingst (DL): 007
Планетарный А-индекс Ap: 006
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 063,
получено на основе анализа результатов 22 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

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