Перегляд архіву пʼятниця, 11 серпня 2023

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2023 Aug 11 1242 UTC

SIDC Forecast

Сонячні спалахи

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

10cm fluxAp
11 Aug 2023156007
12 Aug 2023156007
13 Aug 2023156007

Solar Active Regions and flaring

Solar flaring activity has been quite over the past 24 hours with few C-class flares. The larger flare was a C8.3-class flare produced by NOAA AR 3395 (Catania sunspot group 14) and was peaking at 06:45 UTC on August 11. The other region that showed some C-class flaring activity was the NOAA AR 3398 (Catania sunspot group 16). The other regions did not show any significant flaring activity. Solar flaring activity is expected to remain quite over the next 24 hours with a high probability of C-class flare and a very small chance of M-class flares.

Корональні викиди маси

No coronal mass ejection (CME) with an Earth- directed component was identified in the SOHO/LASCO-C2 coronagraph images over the past 24 hours.

Сонячний вітер

The solar wind parameters were mostly close to nominal levels over the past 24 hours. The total interplanetary magnetic field slightly increased around 16:00 UTC on August 10 reaching values around 9 nT and 10 nT. Few hours later, around 21:30 UTC the solar wind speed increase to about 550 km/s for about 2 hours before returning to slow wind speeds (ranging from 400 km/s to 490 km/s). This minor solar wind enhancement indicate the passage of a solar wind structure with an unclear source on the solar disc. The north-south component was fluctuating between -4.8 nT and 8.3 nT. The solar wind conditions are expected to remain as such for the next 24 hours.

Geomagnetism

Geomagnetic conditions were mostly quiet with some short unsettled periods (NOAA Kp 1-3, K Belgium 1-3) over the past 24 hours. Mostly quiet conditions with possible short unsettled periods are expected for the next 24 hours.

Proton flux levels

The greater than 10 MeV proton flux has now decreased and returned to nominal values. New proton event cannot be excluded due to the flaring activity, however, it is not very likely.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux was above the level of the 1000 pfu alert threshold for a short period, and is expected to remain below threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Today's estimated international sunspot number (ISN): 113, based on 20 stations.

Solar indices for 10 Aug 2023

Wolf number Catania111
10cm solar flux156
AK Chambon La Forêt013
AK Wingst010
Estimated Ap010
Estimated international sunspot number113 - Based on 31 stations

Noticeable events summary

DayBeginMaxКінецьLocStrengthOP10cmCatania/NOAARadio burst types
Немає

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

Весь час у UTC

<< На сторінку денного огляду

Останні новини

Підтримайте SpaceWeatherLive.com!

Багато людей відвідують сайт SpaceWeatherLive, щоб слідкувати за сонячною та авроральною активністю, але зі збільшенням трафіку хостинг також стає дорожчим. Будь-ласка, подумайте про пожертву, якщо вам подобається SpaceWeatherLive, щоб ми могли і надалі підтримувати цей сайт і платити за хостинг!

Пожертва SpaceWeatherLive Pro
Підтримка SpaceWeatherLive через купівлю наших товарів
Зверніть увагу на наші товари

Факти про космічну погоду

Останній X-спалах2025/03/28X1.1
Останній M-спалах2025/04/01M2.5
Останній геомагнітний шторм2025/03/27Kp5 (G1)
Дні без сонячних плям
Останній день без сонячних спалахів2022/06/08
Середня кількість сонячних плям протягом місяця
лютого 2025154.6 +17.6
квітня 2025152.5 -2.1
Останні 30 днів130.7 -17.9

Цей день в історії*

Сонячні спалахи
12001X1.77
22017M8.35
31999M6.2
42001M3.57
52017M1.81
DstG
11979-168G4
21960-151G3
31992-105G2
42004-104G2
51994-103G3
*з 1994 року

Соціальні мережі