Het archief bekijken van zaterdag 24 februari 2024

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2024 Feb 24 1231 UTC

SIDC Prognose

Zonnevlammen

M-class flares expected (probability >=50%)

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

10cm fluxAp
24 Feb 2024175008
25 Feb 2024177016
26 Feb 2024179007

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity over the past 24 hours was at moderate levels. Six M-class flares were produced by NOAA AR 3590 (beta-gamma-delta). The largest flare was a M4.5-flare, with peak time 06:34 UTC on February 24. There are currently 6 numbered active regions on the visible disk. NOAA AR 3590 (beta-gamma-delta) is the largest, most magnetically complex region and has produced most of the flaring activity in the last 24 hours. NOAA AR 3586 (alfa) has been stable and inactive. NOAA AR 3591 (alfa), NOAA AR 3592 (beta) and NOAA AR 3594 (beta) have rotated over the east limb. NOAA AR 3593 (beta) has emerged on the solar disk close to the west limb. The solar flaring activity is likely to be at moderate levels over the coming days with C-class flares expected and M-class flares possible and a chance for an X-class flare.

Coronale massa uitstoten

No Earth directed Coronal Mass Ejections (CME)s have been observed in the last 24 hours.

Coronale gaten

Two negative polarity coronal holes have passed the central meridian. One in the northern half of the Sun at high latitude and the other in the Southern half at low latitude. A high-speed stream from the southern coronal hole is expected to impact the Earth early on the 25th of February.

Zonnewind

Slow solar wind conditions were recorded over the past 24 hours. The solar wind speed fluctuated between 290 km/s to 362 km/s. The interplanetary magnetic field fluctuated between 2 nT and 7 nT, with the Bz reaching a minimum value of -5 nT. The phi-angle was mainly in the negative sector (directed towards the Sun) with periods on the positive sector. In the next 24 hours, the solar wind conditions are expected to become disturbed due to the arrival of a high-speed stream associated with a negative polarity coronal hole and the possible glancing blow arrival of a CME from February 21.

Geomagnetisme

Geomagnetic conditions were globally and locally quiet (Kp 1-2 and K Bel 1-2). Unsettled to active conditions are expected in the next 24 hours.

Proton flux niveaus

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next days. Some enhancements are possible in the case of an eruptive activity from NOAA AR 3590.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV GOES 16 electron flux was below the 1000 pfu threshold and is expected to remain so in the upcoming days. The 24h electron fluence was at nominal level and is expected to remain so in the next days.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 105, gebaseerd op 14 stations.

Zon indexen voor 23 Feb 2024

Wolfgetal Catania134
10cm zonneflux173
AK Chambon La Forêt007
AK Wingst003
Geschatte Ap003
Geschat internationaal zonnevlekkengetal104 - Gebaseerd op 19 stations

Overzicht opvallende gebeurtenissen

DagStartMaxEindeLocatieSterkteOP10cmCatania/NOAASoorten radio-uitbarstingen
23131213281354----M1.085/3590
23154115531606N18E18M1.41N85/3590
23172617471807N18E18M2.61N85/3590III/2
24062106340644----M4.585/3590
24103210571103----M2.285/3590
24110311181125----M3.685/3590

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

Alle tijden in UTC

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Deze dag in de geschiedenis*

Zonnevlammen
12006M1.39
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31997C9.01
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DstG
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