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Observations

Space Based Imaging

More data: SWAP, EUI

Ground Based Imaging

More: H-α, WL, Ca-IIK, Drawings

Ground Based Radio

More: ARCAS+HSRS, CALLISTO

Space Based Timelines

More data: LYRA, TSI

WDC Sunspot Index

More data: SILSO

Space Weather Services

Detections

Solar Map

Latest Alerts

Flaremail 2025-01-17

A class M7.4 solar X-ray flare occurred on 2025/01/17 with peak time 13:35UT

Forecasts

  • Flare: M-class flares
    (≥50%)
  • Protons: Quiet
  • Geomagnetic: Active conditions
    (A>=20 or K=4)
  • All quiet: False
  • Provisional SSN: 144

Solar Activity

URSIgram 2025-01-18

Solar flaring activity was high over the past 24 hours, with 7 M-class flares identified. The largest flare was a M7.4 flare (SIDC Flare 3308) peaking on January 17 at 13:35 UTC, which was produced by SIDC Sunspot Group 378 (NOAA Active Region 3964). A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 378 (NOAA Active Region 3964) (Beta-Gamma) was responsible for the majority of the flaring activity over the past 24 hours. No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images. The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days. The greater than 2 MeV electron flux measured by GOES 16 remained below the 1000 pfu alert threshold, and it is expected to remain below the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Solar Wind

URSIgram 2025-01-18

Geomagnetic conditions were globally and locally quiet to active (Kp 4 and K Bel 4). Active conditions are expected in the next 24 hours. Slightly enhanced solar wind conditions are recorded over the past 24 hours, with solar wind speed from 530 to around 610 km/s. The interplanetary magnetic field was initially 10nT and gradually decreased to 4 nT in the last 24 hours and the Bz reached a minimum value of -4 nT. Further enhancements of the solar wind speed are possible in the next 24h, due to the influence of the high-speed stream (HSS) of the coronal hole.

Research

News

Filament front

A stretched out filament

A million km long filament has been transiting the solar disk during the last 2 weeks.
GOESSUVI

X-class flares by NOAA 3947

NOAA 3947 has been the source of several X- and M-class flares over the last 48 hours. ***Updated (2)***
GONG SUVI

X-class flares and severe geomagnetic storm

Coronal mass ejections, associated with a series of M- and X-class flares on 29 and 30 December, have resulted in a severe geomagnetic storm. ***UPDATED (4)***
 

Activities

Ground Observations

The SIDC monitors the level of solar activity from the photosphere to the corona with ground based instruments located in Uccle and Humain.

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Space Instruments

To avoid the disturbing or blocking effect of the Earth atmosphere, EUV observations of the solar corona need to be made from space...

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Space Weather & Climate

We monitor and forecast solar variability to provide information services  to society and industry about the influence of space weather and climate.

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Data Processing & Distribution

Data processing is necessary to extract relevant information for research studies, whereas data distribution and visualization are part of ROB open data policy.

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Modeling

Modelling of Solar phenomena allows scientists to test theories and to predict Space Weather phenomena and their impact on Earth.

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Supporting Research

The SIDC shares and expands its expertise through interaction with both upcoming and experienced researchers.

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