QRZ.RU EXPRESS от 9 декабря 2020

Опубликовано: 2020 Dec 08 1230 UTC

SIDC URSIGRAM 01208
Состояние солнечной активности на 08 Dec 2020, 1230UT
Прогноз сделан для периода с 1230UT, 08 Dec 2020 до 10 Dec 2020)
Солнечная активность: очень низкая. Вероятность вспышек C-класса менее 50%
Геомагнитное поле: Слабая магнитная буря (A>=30, K=5)
Протонные вспышки: Спокойное состояние
Прогноз на 08 Dec 2020: плотность потока солнечного излучения: 090, A-индекс: 007
Прогноз на 09 Dec 2020: плотность потока солнечного излучения: 090, A-индекс: 013
Прогноз на 10 Dec 2020: плотность потока солнечного излучения: 090, A-индекс: 020

Комментарий (на английском языке): NOAA AR 2790 produced a long duration C7.4 flare, peaking at 16:32 UT on 7 December. The other region visible is NOAA AR 2791, both of alpha type. Further isolated C flaring is possible in the next 24 h. A full halo CME was first seen by LASCO C2 at 16:24 UT on 7 December, with a speed of 1280 km/s, associated with the C7.4 flare. The bulk of the material was directed to the south, but it had an Earth directed component that is expected to arrive around 17:00 UT on 9 December and cause up to moderate storm conditions. An equatorial coronal hole of negative polarity crossed the central meridian on 6 December, its associated high speed stream (HSS) is expected to arrive to the Earth on 9 December. It consists of several small coronal holes patches, it will probably not have a large impact. The greater than 10 MeV proton flux is at background levels and is expected to remain at background levels. The greater than 2MeV electron flux did not exceed the 1000 pfu alert threshold, it may increase with the arrival of the HSS. The 24h electron fluence was at moderate levels, it may increase with the arrival of the HSS. Solar wind speed was around 350 km/s and the interplanetary magnetic field mostly around 5 nT. Bz never went below -5 nT. The magnetic field phi angle has oriented away from the Sun (positive). Geomagnetic conditions were quiet (local K Dourbes 0-2 and NOAA Kp 0-2). Geomagnetic conditions are expected to increase on 9 December due to the arrival of the HSS and the CME, active to moderate storm periods can be expected.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 011,
получено на основе анализа результатов 10 станций наблюдения.
Солнечные индексы за 07 Dec 2020
Число Вольфа по данным обсерватории Катания (IT9): 025
Плотность потока излучения: 090
A-индекс по данным обсерватории Chambon-la-Foret (F): 005
A-индекс по данным обсерватории Wingst (DL): 002
Планетарный А-индекс Ap: 001
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 020,
получено на основе анализа результатов 15 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES

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