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Observations

Space Based Imaging

More data: SWAP, EUI

Ground Based Imaging

More: H-α, WL, Ca-IIK, Drawings

Ground Based Radio

More: ARCAS+HSRS, CALLISTO

Space Based Timelines

More data: LYRA, TSI

WDC Sunspot Index

More data: SILSO

Space Weather Services

Detections

Solar Map

Latest Alerts

None

No alerts since: 2025-01-18

Forecasts

  • Flare: M-class flares
    (≥50%)
  • Protons: Quiet
  • Geomagnetic: Quiet
    (A<20 and K<4)
  • All quiet: False
  • Provisional SSN: 157

Solar Activity

URSIgram 2025-01-22

Solar flaring activity was moderate over the past 24 hours, with few C-class flares and a M-class flare identified. The largest flare was a M1.3 flare peaking at 11:08 UTC on Jan 22, which was produced by SIDC Sunspot Group 346 (NOAA Active Region 3961). During the flare, the source region (SIDC 346) of the flare had beta-gamma configuration of its photospheric magnetic field. A total of 9 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Groups 346, 347, 378, and 381 are the complex regions with their beta-gamma magnetic configurations. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours with C-class flares expected, M-class flares probable, and a chance of X-class flares. Further analysis of the coronal mass ejections (CME) detected at 03:48 UTC on Jan 21 in SOHO/LASCO-C2 images, shows that it has a projected width of about 70 degree and a projected speed of about 800 km/s with the main propagation direction towards North. No corresponding on-disk source has been identified so it is likely to be backsided and will not influence the Earth. Another CME has been first observed in STEREO-A/SECCHI coronograph images at 10:53 UTC on Jan 21. This CME was associated with a M3.4 flare, which peaked at 10:39 UTC on Jan 21, produced by SIDC Sunspot Group 347 (NOAA Active Region 3967, S17 E23) and the filament eruption near the same AR. Associted type II radio emissions were detected at 10:27 UTC during the flaring activity. Associated coronal dimming and EUV wave were also observed. It has a projected width of about 110 deg and a projected speed of about 700 km/s. With its main component in the SE direction, a glancing blow is expected to influence the Earth on Jan 23-24. The greater than 10 MeV GOES proton flux was below the threshold level over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the 1000 pfu threshold level over the past 24 hours and is expected to remain so in the coming 24 hours. However, greater than 2 MeV electron flux, as measured by the GOES-18 satellite, reached above the threshold level at 17:20 UTC on Jan 21 and dropped finally below the threshold level at 02:20 UTC on Jan 22 in the last 24 hours. The 24h electron fluence is presently at normal level, and it is expected to remain so in the next 24 hours.

Solar Wind

URSIgram 2025-01-22

Geomagnetic conditions were globally and locally at quiet to unsettled conditions (NOAA Kp and K_BEL 1 to 3), due to the continued impact of high speed streams from the elongated, negative polarity coronal hole which crossed the central meridian on Jan 17. We expect quiet to unsettled conditions (K 1 to 3) in the next 24 hours. Solar wind conditions are transitioning from fast to slow solar wind. The solar wind speed ranged from 445 km/s to 575 km/s. The North-South component (Bz) ranged between -5 nT and 4 nT. The interplanetary magnetic field ranged between 2 nT and 6 nT. In the next 24 hours, we expect a transition to slow solar wind conditions.

Research

News

Filament front

A stretched out filament

A million km long filament has been transiting the solar disk during the last 2 weeks.
GOESSUVI

X-class flares by NOAA 3947

NOAA 3947 has been the source of several X- and M-class flares over the last 48 hours. ***Updated (2)***
GONG SUVI

X-class flares and severe geomagnetic storm

Coronal mass ejections, associated with a series of M- and X-class flares on 29 and 30 December, have resulted in a severe geomagnetic storm. ***UPDATED (4)***
 

Activities

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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Modeling

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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