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 2022-08-08

A moderate geomagnetic storm was observed globally as NOAA planetary Kp index reached 6 between 21 UTC and midnight UTC on Aug 7th. The storm is caused by a high speed stream which is currently affecting the Earth. Locally in Dourbes only active conditions were detected and no geomagnetic storms were observed. Active conditions and isolated minor storms are expected for the upcoming day as the solar wind speed has increased up to 669 km/s with remaining chances for more isolated moderate storms.


  • Flare: Quiet conditions
    (<50% C-class flares)
  • Protons: Quiet
  • Geomagnetic: Quiet
    (A<20 and K<4)
  • All quiet: False
  • Provisional SSN: 73

Solar Activity

URSIgram 2022-08-08

Solar flaring activity was at low levels with two low C-class flares registered with over the past 24 hours. There are seven numbered regions on the visible solar disc, all relatively simple. Regions NOAA 3068 (alpha) has produced a C1.6-class flare with peak time 23:06 UTC on Aug 7th while rotating onto the west limb. NOAA 3072 (beta) remained mostly unchanged and produced a C1.1-class flare with peak time 22:35 UTC on Aug 07th. NOAA 3076 (alpha) was newly numbered close to the northeast limb in the vicinity of NOAA 3075 (beta). The rest of the active regions remained stable and quiet. The flaring activity over the next 24 hours is expected to at very low to low levels with remaining chances for isolated C-class flaring. No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph imagery over the past 24 hours. 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 24 hours. The greater than 2 MeV electron flux has been below the1000 pfu threshold and is expected to remain so. The 24h electron fluence was at nominal levels and is expected to remain so over the next 24 hours.

Solar Wind

URSIgram 2022-08-08

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) remained under the influence of a high speed stream. The overall solar wind velocity steadily increased from 408 km/s to about 580 km/s, reaching a maximum value of 669 km/s. The interplanetary magnetic field reached 15 nT with a minimum Bz of -13.2 nT. The B field remained in the positive sector (directed away from the Sun). The solar wind parameters are expected to remain elevated over the next several days under the influence of the high speed stream. The geomagnetic conditions over the past 24 hours were globally at active to minor storm levels with an isolated moderate storm between 21 UTC and midnight UTC on Aug 07th. Locally in Dourbes only unsettled to active conditions were registered with no geomagnetic storms. Over the next 24 hours the geomagnetic conditions are expected to be locally quiet to active with chances for isolated minor geomagnetic storms and globally quiet to active with chances for minor storms and a minor chance for an isolated moderate storm.





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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