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

Presto 2022-08-14

A partial halo coronal mass ejection (CME) was observed in LASCO C2 from around 12:48 UTC on August 14 with an average plane of sky velocity of around 650 km/s. The CME is related to an on disc filament eruption in the north-western quadrant and was associated to a long duration C2.4 flare with an associated observed type II radio emission. The bulk of the CME is directed to the south-west with an arrival at Earth expected early on August 17.


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

Solar Activity

URSIgram 2022-08-14

Solar flaring activity was at low levels. Several C-flares occurred in the past 24 hours, the majority of which originated from NOAA active regions 3079 and 3081. The strongest flare was a C6.7 flare from NOAA AR 3079 peaking at 13:00 UTC. NOAA ARs 3080 and 3074 have decayed into plage regions. NOAA AR 3081 has developed rapidly in the north-west of the solar disk, the remaining active regions are relatively simple and stable. Solar flaring activity is expected to be a low levels, with C-class flaring very likely and a chance for M-class flaring. No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph imagery. The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next days. The greater than 2 MeV electron flux was above the 1000 pfu threshold and is expected to be above or around the threshold in the next 24 hours. The 24h electron fluence was at moderate levels and is expected to be at moderate levels with a slow decreasing trend.

Solar Wind

URSIgram 2022-08-14

The Earth continues to be under the waning influence of a high-speed stream. The solar wind speed decreased from around 540 to 470 km/s, while the interplanetary magnetic field strength varied around 5nT. The magnetic field orientation showed mostly a connection to a positive sector (field away from the Sun). Over the next 24 hours solar wind speed is expected to continue the decreasing trend and slowly return towards slow solar wind conditions/ Geomagnetic conditions were quiet to unsettled (local K Dourbes and NOAA Kp 1-3). Geomagnetic conditions are expected to be quiet to unsettled over the next days.





Congratulations, Dr Talpeanu!

On 20 June, 2022 Dana-Camelia Talpeanu successfully defended her PhD thesis ‘Numerical and Observational Study of Stealth and Consecutive Coronal Mass Ejections’. Her work was a joint project between the SIDC and the KU Leuven.

First Solar Orbiter/EUI Guest Investigator Call is now open

The EUI PI team welcomes research proposals for the first round of its Guest Investigator Program for research based on EUI and Solar Orbiter data analysis by scientists outside the EUI PI team.

ROB/SIDC has successfully passed the Flight Acceptance Review of its Science Operations Centre for PROBA-3/ASPIICS

A committee consisting of experts in software development, space mission operations, and science was appointed by ESA to follow the SOC development and to review it at regular intervals. The Flight Acceptance Review was the last in the series of reviews. It had to certify that the SOC is built following the pre-defined scientific and technical requirements. The committee has thoroughly inspected the SOC software and associated documentation. In April 2022, it concluded that the SOC satisfies all the requirements and the Flight Acceptance Review of the ASPIICS SOC is successfully closed.


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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