QRZ.RU EXPRESS от 4 апреля 2023

Опубликовано: 2023 Apr 03 1231 UTC SIDC URSIGRAM 30403 Состояние солнечной активности на 03 Apr 2023, 1230UT Прогноз сделан для периода с 1230UT, 03 Apr 2023 до 05 Apr 2023) Солнечная активность: очень низкая. Вероятность вспышек C-класса менее 50% Геомагнитное поле: Спокойное состояние (A<20 and K<4) Солнечные протоны: Спокойное состояние Прогноз на 03 Apr 2023: плотность потока солнечного излучения: 128, A-индекс: 005 Прогноз на 04 Apr 2023: плотность потока солнечного излучения: 130, A-индекс: 011 Прогноз на 05 Apr 2023: плотность потока солнечного излучения: 134, A-индекс: 003 Комментарий (на английском языке): The solar flaring activity is low with several low C-class flares reported during the last 24 hours. The largest reported flare was GOES C3.4 which peaked at 23:13 UT on April 02. The majority of the flaring activity, as well as the strongest reported flare, was originating from the NOAA AR 3270 which is still increasing in the sunspot area and the complexity of its photosperic magnetic field configuration (presently classified as beta). In the coming hours we expect C-class flares and possible, but not very probable isolated M-class flares. The flaring activity is expected to originate mostly from the NOAA AR 3270 and the non-numbered active region which is presently rotating on the visible side of the Sun (situated at the latitudes of about S30). During last 24 hours there were no potentially Earth-directed CMEs detected in the coronagraph observations. The greater than 10 MeV proton flux remained at the background levels, and the greater than 2 MeV electron flux was fluctuating around the 1000 pfu threshold. The 24h electron fluence is at moderate to normal level. We do not expect change in these three parameters in the coming 24 hours. The solar wind velocity was slowly decreasing during last 24 hours and this morning is started to again increase to the present value of about 500 km/s. The interplanetary magnetic field magnitude is fluctuating around 5 nT. The solar wind originating from the two small negative polarity coronal holes reported yesterday might be expected at Earth starting from tomorrow. During last 24 hours the geomagnetic conditions were quiet to unsettled. Local station at Dourbes reported K=3 and NOAA reported Kp=3+ around the midnight today. We expect such a geomagnetic conditions to persist in the coming hours. Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 064, получено на основе анализа результатов 19 станций наблюдения. Солнечные индексы за 02 Apr 2023 Число Вольфа по данным обсерватории Катания (IT9): /// Плотность потока излучения: 127 A-индекс по данным обсерватории Chambon-la-Foret (F): 021 A-индекс по данным обсерватории Wingst (DL): 016 Планетарный А-индекс Ap: 017 Вчерашнее значение числа солнечных пятен (International Sunspot Number): 045, получено на основе анализа результатов 19 станций наблюдения. Прошедшие события на Солнце: DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES Не зарегистрировано