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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: 2025-02-13

Forecasts

  • Flare: M-class flares
    (≥50%)
  • Protons: Quiet
  • Geomagnetic: Quiet
    (A<20 and K<4)
  • All quiet: False
  • Provisional SSN: 153

Solar Activity

URSIgram 2025-02-18

A total of 12 numbered sunspot groups were identified on the disk over the past 24 hours. Solar flaring activity was moderate over the past 24 hours, with 1 M-class flare identified. The largest flare was a M1.0 flare (SIDC Flare 3633) peaking on February 17 at 15:13 UTC, which was produced by SIDC Sunspot Group 399 (NOAA Active Region 3992). Solar flaring activity is expected to be moderate over the next 24 hours, with C-class flares expected and M-class flares likely. No Earth directed CMEs were observed in the last 24 hours. SIDC Coronal Hole 91 (high-latitude coronal hole with a positive polarity) crossed the central meridian on February 16. This CH is located at high northern latitudes, so its solar wind will probably not affect the Earth. The greater than 10 MeV proton flux was below the threshold level over the past 24 hours. It is expected to remain below the threshold level over the next 24 hours. The greater-than-10 MeV GOES 16 and 18 proton flux has been above the threshold in the last 24 hours, but it is currently below it. It is expected to rise above the threshold in the next 24 hours. The 24-hour electron fluence is currently at normal levels and is expected to remain so in the next 24 hours.

Solar Wind

URSIgram 2025-02-18

Geomagnetic conditions reached active levels with Kp up to 4 between 15:00 UTC to 18:00 UTC on 17 February and between 00:00 UTC and 03:00 UTC on 18 February. Mostly quiet to unsettled conditions can be expected for the next 24 hours. The solar wind speed at Earth has been steady at around 500 km/s in the last 24 hours, with an interplanetary magnetic field around 6 nT. A gradual transition to slower solar wind can be expected in the next 24 hours.

Research

News

SunCME

Eruptions à la carte!

The fleet of solar satellites recorded several impressive solar eruptions and CMEs during the first few days of February.
CCOR

GOES-19/CCOR-1

Preliminary, non-operational images of the GOES-19 coronagraph CCOR-1 are available at the NOAA/SWPC's testbed, in anticipation of GOES-19 becoming fully operational on 4 April.
SDOHMI

A flock of sunspots

From 28 January onwards, a cluster of sunspots started to rotate over the northeast solar limb. It was responsible for several medium-sized solar flares.
 

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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