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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 2024-05-06

An X4.5 flare has occurred with a peak time 06:35 UTC on May 06. The flare was produced by NOAA AR 3663. Currently no increase is observed in the GOES proton flux. Moderately disturbed radio communications have been observed related to this flaring activity.

Flaremail 2024-05-07

A class M8.2 solar X-ray flare occurred on 2024/05/07 with peak time 16:30UT

Forecasts

  • Flare: M-class flares
    (≥50%)
  • Protons: Quiet
  • Geomagnetic: Active conditions
    (A>=20 or K=4)
  • All quiet: False
  • Provisional SSN: 181

Solar Activity

URSIgram 2024-05-07

The solar flaring activity was at moderate levels with few M-class flares during the last 24 hours. The largest reported flare was GOES M5.2 flare, which peaked at 06:16 UT on May 07, from NOAA AR 3663. During the flare, the source region (AR 3663) of the flare had beta-gamma-delta configuration of its photospheric magnetic field. NOAA AR 3663 (beta-gamma-delta), AR 3664 (beta-gamma-delta), and AR 3668 (beta-gamma) are the magnetically complex regions which produced all flaring activity over the past 24 hours. All three regions produced M-class flares. All other regions were inactive and stable. The solar flaring activity is expected to be at moderate to high levels over the next 24 hours possibly with M-class flares and a chance for isolated X-class flares. Further analysis of a coronal mass ejections (CME), detected at 15:36 UTC on May 05 in LASCO C2 data with a projected speed of 325 km/s and a projected width of 118 degree (as measured by Cactus tool), shows a possible glancing blow at Earth on May 10. This CME was associated with the eruption seen around NOAA AR 3664 and AR 3668 on the SE quadrant of the Sun around 14:20 UT on May 05. No other Earth-directed CMEs were detected in the available coronagraph observations during last 24 hours. 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 threshold level over the past 24 hours and is expected to remain so in the coming 24 hours. The 24h electron fluence is presently at normal level and is expected to remain so for the next 24 hours.

Solar Wind

URSIgram 2024-05-07

Over the past 24 hours, geomagnetic conditions were globally and locally at quiet to active conditions (NOAA Kp and K BEL 1 to 4) due to the continuous arrival of high speed streams (HSSs) from the equatorial (positive polarity) coronal hole which crossed the central meridian on May 03. Quiet to unsettled conditions are expected in the next 24 hours. Over the past 24 hours, the solar wind parameters were still under the influence of high speed streams (HSSs) from the equatorial (positive polarity) coronal hole which crossed the central meridian on May 03. The solar wind speed ranged between 450 km/s to 600 km/s. The North-South component (Bz) ranged between -10 and 10 nT. The interplanetary magnetic field ranged between 2 nT and 12 nT. In the next 24 hours, we expect a gradual transition from fast to slow solar wind.

Research

News

The show continues!...

NOAA 3663 produced its 4th and -so far- strongest X-class flare on 6 May.

X-class flares!

Active region NOAA 3663 produced an X1.6 flare early on 3 May. Further M-class flaring can be expected from this sunspot group, with a chance on another X-class flare. ***UPDATED (2)***

Spot the moss, spicules, and coronal rain

The EUI instrument onboard Solar Orbiter observed the solar corona in exquisite detail once more.
 

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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