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: 2022-06-30


  • Flare: Quiet conditions
    (<50% C-class flares)
  • Protons: Quiet
  • Geomagnetic: Minor storm
    (A>=30 or K=5)
  • All quiet: False
  • Provisional SSN: 80

Solar Activity

URSIgram 2022-07-04

Solar flaring activity was low during the last 24 hours with two C-class flares detected from NOAA Active Regions (AR) 3040 and 3046. There are numerous AR on the visible side of the solar disk, however, they are relatively small with simple magnetic configuration. NOAA AR 3040 will disappear behind the solar limb in the next 24 hours. NOAA AR 3046 lost some of its magnetic complexity during the last 24 hours. There is a small chance of low C-class activity during the next 24 hours, mostly from NOAA AR 3046. 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 over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold and is expected to remain below this threshold during the next 24 hours. The 24h electron fluence was at nominal levels and is expected to remain so.

Solar Wind

URSIgram 2022-07-04

During the last 24 hours, the Solar Wind (SW) conditions are affected by the arrival of a disturbance. The SW speed gradually increased from 300 to 420 km/s in the last 24 hours. The total magnetic field (Bt) ranged between 6 and 20 nT and its Bz component varied between -13 and 18 nT, during the past 24 hours. The interplanetary magnetic field phi angle was mostly in the negative sector (directed towards the Sun) over the last 24 hours. An interaction region and possibly a High Speed Stream (HSS) is expected during the next 24 hours as the result of the Coronal Hole (CH) crossing of 1 July. Geomagnetic conditions reached minor storm levels globally (Kp 2-5) and active levels locally (K Doubres 4 between 07:00 and 11:00 UT) during the last 24 hours. Active to minor storm levels are expected in the next 24 hours both globally and locally.





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.

The EUI telescope causes a revolution in solar physics

On March 26, 2022, the Solar Orbiter satellite came closer to the Sun than ever before. A particularly exciting moment. The images of this closest approach -the perihelion-, taken by the Extreme Ultraviolet Imager (EUI) on board are will revolutionize solar physics!


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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