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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

Presto 2024-08-23

The halo-CME detection issued by Cactus on 2024-08-22T21:03 is the result of a combination of 3 more narrow Coronal Mass Ejections. One of these CMEs is a partial halo-CME, mostly directed to the north. All 3 CMEs are not believed to be Earth directed.

Flaremail 2024-08-23

A class M5.1 solar X-ray flare occurred on 2024/08/23 with peak time 20:12UT

CACTus Halo 2024-08-22

A halo or partial-halo CME was detected with the following characteristics: t0 | dt0| pa | da | v | dv | minv| maxv| 2024-08-22T08:12:07.576 | 6.999722222222222 | 144 | 360 | 1547 | 728 | 144 | 1953 t0: onset time, earliest indication of liftoff dt0: duration of liftoff (hours) pa: principal angle, counterclockwise from North (degrees) da: angular width of the CME (degrees), v: median velocity (km/s) dv: variation (1 sigma) of velocity over the width of the CME mindv: lowest velocity detected within the CME maxdv: highest velocity detected within the CME

Forecasts

  • Flare: M-class flares
    (≥50%)
  • Protons: Quiet
  • Geomagnetic: Quiet
    (A<20 and K<4)
  • All quiet: False
  • Provisional SSN: 207

Solar Activity

URSIgram 2024-08-25

Solar flaring activity was moderate over the past 24 hours. The largest flare was a M1.4-flare, with peak time 23:24 UTC on August 24 2024, from NOAA AR 3800 (beta-gamma). There are currently 9 numbered active regions on the visible disk, with NOAA AR 3796 (beta-gamma) and NOAA AR 3800 (beta-gamma) producing the M-class flares. The solar flaring activity is expected to be at moderate levels over the next 24 hours with C-class flares expected, M-class flares probable and a small chance of X-class flares. No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images. The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold, and is expected to remain below the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Solar Wind

URSIgram 2024-08-25

Geomagnetic conditions were globally and locally quiet to unsettled (Kp 3 and K Bel 3). Quiet conditions are expected in the next 24 hours. The solar wind at the Earth remained slow over the last 24 hours. The solar wind speed slightly decreased from around 370km/s to around 350 km/s and the interplanetary magnetic field was stable around 5 nT. The Bz reached a minimum value of -6 nT. Slow solar wind conditions are expected in the next 24h.

Research

News

The SPADE array installed in Humain

First solar observations with SPADE

In the past couple of weeks, the radio-astronomy team has worked relentlessly on a new setup and calibration procedure for the SPADE instrument.
Magneto

NOAA 3784 joins the club!

NOAA 3784 joined the club of X-class flare producing regions by unleashing an X1.1 on 14 August.
GONG Halpha

Another X-class flare

NOAA 3777 produced an X1.3 flare on 8 August. The associated CME has an earth-directed component. ***UPDATED (3)***
 

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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