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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 2024-06-22

A halo coronal mass ejection (CME) was observed by SOHO/LASCO-C2 at 00:12 UTC on June 22. This event is likely the result of two CMEs erupting simultaneously. The ejection in the eastward direction shows an estimated projected speed of about 1000 km/s and is likely originating from a region on the far side of the Sun. The other ejection, in the south-southwest direction, is much slower and is not expected to reach Earth.

Flaremail 2024-06-20

A class M5.7 solar X-ray flare occurred on 2024/06/20 with peak time 23:16UT

CACTus Halo 2024-06-22

A halo or partial-halo CME was detected with the following characteristics: t0 | dt0| pa | da | v | dv | minv| maxv| 2024-06-22T00:12:07.482 | 3.0 | 52 | 342 | 845 | 437 | 370 | 1955 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: C-class flares
    (≥50%)
  • Protons: Quiet
  • Geomagnetic: Active conditions
    (A>=20 or K=4)
  • All quiet: False
  • Provisional SSN: 152

Solar Activity

URSIgram 2024-06-22

Solar flaring activity over the last 24 hours has been at moderate levels, with multiple C-class and M-class flares. The largest flares was an M9.9 flare originating from NOAA active region 3719 and peaking at 05:55 UTC on June 22. The two other flares were an M1.3 flare from a new or returning region on the east limb peaking at 04:38 UTC on June 22 and an M1.0 flare from NOAA active region 3720 peaking at 11:06 UTC on June 22. There are currently seven sunspot groups on the disc with NOAA active region 3720 producing most of the flares. 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 possible and a small chance of X-class flares. A halo coronal mass ejection (CME) was detected by SOHO/LASCO-C2 at 00:12 UTC on June 22. This event is likely the result of two CMEs erupting simultaneously. The ejection in the eastward direction shows an estimated projected speed of about 1000 km/s and is likely originating from a region on the far side of the Sun. The other ejection, in the south-southwest direction, is much slower and is not expected to reach Earth. Besides this halo CME, no Earth-directed CME was observed in SOHO/LASCO-C2 coronographe images over the last 24 hours. A large north midlatitude north coronal hole with negative polarity, which has crossed the central meridian on June 18 is on geoeffective location, now in the west side of the sun. 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 and decrease over the next 24 hours. The greater than 2 MeV electron flux was below the threshold level in the last 24 hours and is expected to remain so over the next 24 hours. The 24h electron fluence is presently at normal levels and is expected to remain so over the next 24 hours.

Solar Wind

URSIgram 2024-06-22

Geomagnetic conditions were quiet (NOAA Kp 0-2, K BEL 1-2). Later, active conditions to minor storm may be observed later in the next period, in response of the high-speed stream from the large north midlatitude north coronal hole. Solar wind conditions have returned to slow wind regime in the last 24 hours. The solar wind speed decreased from around 400 km/s to 320 km/s. The interplanetary magnetic field remained below 6 nT and the Bz component varied between -4 nT and 4 nT. The solar wind conditions are expected to remain in a slow solar wind regime. Then the high-speed stream from the large north midlatitude north coronal hole with negative polarity is expected to reach Earth in the next period.

Research

News

aurora

Hpo

The fairly recent Hpo geomagnetic index deals with the two major shortcomings of the Kp index.
image

SC25 update

The STCE's SC25 Tracking page has been updated to reflect the latest evolution of some critical space weather parameters for the ongoing solar cycle 25 (SC25).
swarm

Topical Issue "Swarm 10-Year Anniversary"

The Journal of Space Weather and Space Climate (JSWSC) opens the Topical Issue “Swarm 10-Year Anniversary”, dedicated to new results from ESA’s Swarm mission, in particular to investigations of the Magnetosphere-Ionosphere Coupling, Ionospheric and Thermospheric processes, and their implications for Space Weather.
 

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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