Space Based Imaging

More data: SWAP, EUI

Ground Based Imaging

More: H-α, WL, Ca-IIK, Drawings

Ground Based Radio


Space Based Timelines

More data: LYRA, TSI

WDC Sunspot Index

More data: SILSO

Space Weather Services


Solar Map

Latest Alerts


No alerts since: 2022-12-01


  • Flare: C-class flares
  • Protons: Quiet
  • Geomagnetic: Quiet
    (A<20 and K<4)
  • All quiet: False
  • Provisional SSN:

Solar Activity

URSIgram 2022-12-05

The solar flaring activity was at low level with several C-class flares being detected in the last 24 hours. The largest flare was a C2.7 flare, peaking at 05:30 UT, associated with region NOAA AR 3158, that emerged yesterday in the northern hemisphere. As there are no complex active regions observed on the visible side of the solar disk, solar flaring activity is expected to be at low levels, with C-class flares likely and a chance for M-class flares. During last 24 hours there were no potentially Earth-directed CMEs detected in the available coronagraph observations. In the past 24 hours the greater than 10 MeV proton flux remained at the background levels. The greater than 2 MeV electron flux exceeded the 1000 pfu threshold during the last 24 hours. The electron flux is expected to continue to exceed this threshold over the next day. The 24h electron fluence was at moderate levels. The electron fluence is expected to be at moderate to high levels in the next 24 hours.

Solar Wind

URSIgram 2022-12-05

The solar wind speed has decreased, and it is presently about 520 km/s. The interplanetary magnetic field magnitude is about 5 nT. The magnetic field orientation was predominantly in the positive sector (field directed away from the Sun). A large trans-equatorial negative polarity coronal hole is crossing the central meridian. The solar wind originating from this equatorial coronal hole is expected at Earth from Dec 07. During last 24 hours the geomagnetic conditions reached active levels levels (NOAA KP 2-4 and Local K Dourbes 2-4). Geomagnetic conditions are expected to be at unsettled levels during next hours.





Solar snake spotted slithering across Sun’s surface

Solar Orbiter has spotted a ‘tube’ of cooler atmospheric gases snaking its way through the Sun’s magnetic field. The observation provides an intriguing new addition to the zoo of features revealed by the ESA-led Solar Orbiter mission, especially since the snake was a precursor to a much larger eruption.

Close-up of the Sun

The ESA-led Solar Orbiter mission has experienced its second close encounter with the Sun.  It is delivering more stunning data, and at higher resolution than ever before! 

And so they meet again…

Solar Orbiter speeds towards its next rendezvous with the Sun on the evening of October 12.


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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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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