QRZ.RU EXPRESS от 17 апреля 2022

Опубликовано: 2022 Apr 16 1248 UTC
SIDC URSIGRAM 20416
Состояние солнечной активности на 16 Apr 2022, 1246UT
Прогноз сделан для периода с 1230UT, 16 Apr 2022 до 18 Apr 2022)
SOLAR FLARES : C-class flares expected, (probability >=50%)
Геомагнитное поле: Спокойное состояние (A<20 and K<4)
Солнечные протоны: Спокойное состояние
Прогноз на 16 Apr 2022: плотность потока солнечного излучения: 110, A-индекс: 011
Прогноз на 17 Apr 2022: плотность потока солнечного излучения: 115, A-индекс: 006
Прогноз на 18 Apr 2022: плотность потока солнечного излучения: 117, A-индекс: 006
Комментарий (на английском языке): During last 24 hours number of C-class flares and two M-class flare were reported, originating from the active region which just started its rotation across the East solar limb (previously numbered as NOAA AR 2975). We can expect more flaring activity of the C-class level and also M-class level as this region rotates to the visible side of the solar discs as seen from Earth. Although during last 24 hours some fast and wide CMEs were reported, their source region was behind the East solar limb, and they are not expected to arrive to Earth. The greater than 10 MeV proton flux was at background levels, and the greater than 2 MeV electron flux was under the 1000 pfu threshold, we expect them to remain on these levels in the coming hours. The 24h electron fluence is at normal level and we expect it will stay so in the coming 24 hours. The solar wind speed is presently 510 km/s and the interplanetary magnetic field magnitude is about 8 nT. During last 24 hours the Earth was under influence of the rather fast solar wind, up to 630 km/s as observed by DSCOVR, and 750 km/s as reported by SOHOS/CELIAS. The in situ observations indicate that might have been the fast solar wind from the positive polarity coronal hole that was expected early this morning. However, the in situ signatures are not very clear, which might be due to the point that the Earth was still under the influence of the ICME when the wind speed increase started. During last 24 hours the geomagnetic conditions were active to unsettled. We expect the unsettled to quiet geomagnetic conditions in the coming hours.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 051,
получено на основе анализа результатов 22 станций наблюдения.
Солнечные индексы за 15 Apr 2022
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 110
A-индекс по данным обсерватории Chambon-la-Foret (F): 022
A-индекс по данным обсерватории Wingst (DL): 025
Планетарный А-индекс Ap: 025
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 042,
получено на основе анализа результатов 32 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
15 1347 1359 1411 ////// M1.9 /////// VII/2III/1