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: 2022-11-24


  • Flare: Quiet conditions
    (<50% C-class flares)
  • Protons: Quiet
  • Geomagnetic: Active conditions
    (A>=20 or K=4)
  • All quiet: False
  • Provisional SSN: 32

Solar Activity

URSIgram 2022-11-29

The solar flaring activity was at low levels with two C-class flares reported in the past 24 hours. NOAA ARs 3151 and 3152 each produced a C1 flare. NOAA AR 3151 is expected to rotate over the west limb in the next day. Solar flaring activity is expected to be at very low levels, with a low chance of C-class flares. No Earth directed Coronal Mass Ejections (CMEs) were detected in the available coronagraph imagery. In the past 24 hours the greater than 10 MeV proton flux was below the minor-storm warning threshold and is expected to remain so. The greater than 2 MeV electron flux remained below the 1000 pfu threshold during the last 24 hours but is expected to increase and cross the threshold in the next 24 hours. The 24h electron fluence was at normal levels. The 24h electron fluence is expected to be at normal to moderate levels.

Solar Wind

URSIgram 2022-11-29

The solar wind parameters reflected the ongoing influence of a high-speed stream. The solar wind speed was elevated with values ranging between 515 and 680 km/s. The interplanetary magnetic field magnitude ranged between 5 and 10 nT. The magnetic field orientation was predominantly in the positive sector (field directed away from the Sun). The solar wind speed is expected to continue to be enhanced over the next day, due to the ongoing influence of the high-speed stream. A further enhancement is expected from Dec 01 associated with the large positive polarity equatorial coronal hole, which began to transit the central meridian on November 28. Geomagnetic conditions were unsettled to active (NOAA Kp 2-4, local K-Dourbes 1-4). Geomagnetic conditions are expected to be unsettled to active on Nov 29 to Nov 30. From December 01, minor storm conditions are possible in response to the next expected high-speed stream arrival.





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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