Het archief bekijken van dinsdag 15 september 2026

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2026 Sep 15 1231 UTC

SIDC Prognose

Zonnevlammen

C-class flares expected, (probability >=50%)

Geomagnetisme

Minor storm expected (A>=30 or K=5)

Proton Flux monitor

Quiet

	10cm flux	Ap
15 Sep 2026	104	013
16 Sep 2026	102	039
17 Sep 2026	100	013

Zonnevlekkengebieden en zonnevlammen

A total of 4 numbered sunspot groups were identified on the disk over the past 24 hours. Solar activity has been very low in the last 24 hours, with no C-class flares observed. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares likely.

Coronale massa uitstoten

No Earth-directed CMEs were detected in the last 24 hours.

Coronale gaten

SIDC Coronal Hole 142 is at mid to high latitude in the northern hemisphere, it crossed central meridian on September 13.

Zonnewind

The solar wind at the L1 point was under the influence of an ICME that started on 14 September. The interplanetary magnetic field had reached 16 nT, without a marked negative Bz. At present, a major disturbance is arriving at L1, starting around 11:30 UT on 15 September. This is likely an early arrival of the ICME associated with the September 13 CME, which was originally expected later today. Solar wind speed has reached 815 km/s, reflecting the transient's elevated speed. No shock is currently visible in the data, as the magnetic field strength has not yet increased. Bz currently remains positive. Further updates will be provided as more data becomes available. Furthermore, in about 24 hours a high speed stream from SIDC Coronal Hole 142 is expected to arrive.

Geomagnetisme

Geomagnetic conditions have reached active levels both locally and at planetary levels (Kp and K_Bel up to 4) in the last 24 hours. The combination of ongoing ICME effects and high speed stream arrival will likely elevate geomagnetic conditions in the coming hours. Minor to major storm conditions can be expected.

Proton flux niveaus

The greater than 10 MeV proton flux remained below the 10 pfu threshold.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux, as measured by GOES-18 and GOES-19, remained mostly below the 1000 pfu alert threshold over the past 24 hours. The greater than 2 MeV electron flux may exceed the alert threshold over the next 24 hours.The 24-hour electron fluence was at moderate levels and is expected to remain at moderate levels over the next 24 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 045, gebaseerd op 17 stations.

Zon indexen voor 14 Sep 2026

Wolfgetal Catania	///
10cm zonneflux	104
AK Chambon La Forêt	025
AK Wingst	019
Geschatte Ap	016
Geschat internationaal zonnevlekkengetal	052 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

Alle tijden in UTC

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