Het archief bekijken van zondag 23 april 2023

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2023 Apr 23 1231 UTC

SIDC Prognose

Geldig van 1230 UTC, 23 Apr 2023 tot 25 Apr 2023
Zonnevlammen

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

Geomagnetisme

Major (ISES: Severe) magstorm expected (A>=100 or K>=7)

Proton Flux monitor

Warning condition (activity levels expected to increase, but no numeric forecast given)

10cm fluxAp
23 Apr 2023140030
24 Apr 2023140082
25 Apr 2023140021

Bulletin

Solar flaring activity at low levels over the past 24 hours with only isolated low C-class flaring. There are six numbered active regions on the visible solar disc. The largest and most complex one, NOAA AR 3282 (beta-gamma), has remained stable and inactive. The strongest activity was a C2.2 flare, peak time 06:40 UTC on April 23rd, produced by NOAA AR 3279 (beta). The rest of the active regions, including a newly formed unnumbered region rear NOAA AR 3285 (beta), have been stable and inactive. The solar flaring activity is expected to be at low levels over the next 24 hours with low chances for isolated M-class flaring.

No Earth-directed coronal mass ejections (CMEs) have been detected in the available coronagraph imagery over the past 24 hours. The halo CME related to M-class flaring and filament eruption on April 21st is expected to arrive to Earth over the next 24 hours.

Over the past 24 hours the greater than 10 MeV GOES proton flux was elevated, remaining well below radiation storm levels. The greater than 10 MeV GOES proton flux is expected to remain enhanced over the next 24 hours with the chances of reaching minor radiation storm levels. The greater than 2 MeV electron flux has been below the 1000 pfu threshold and is expected to remain so. The 24h electron fluence was at nominal levels and is expected to remain so over the next 24 hours.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) were mainly at background slow solar wind levels until around 08:00 UTC on April 23rd when the beginning of an ongoing disturbance was first observed. It is too early to determine the nature of this disturbance, but it could be a precursor of the expected ICME arrival. The solar wind velocity varied from 329 km/s to 457 km/s. The interplanetary magnetic field reached a maximum value of 11.8 nT and a minimum Bz of -11.7 nT. The B field was mostly in the negative sector with some switch backs to the positive sector (directed away from the Sun). The solar wind conditions are expected to be significantly perturbed over the next 24 hours with an anticipated strong ICME arrival, related to the CME driven by M-flaring and filament eruption on April 21st.

The geomagnetic conditions over the past 24 hours were globally quiet and locally quiet to unsettled over Belgium. The geomagnetic conditions are expected to be significantly elevated over the next 24 hours with expected moderate to major geomagnetic storms and chances for severe storm levels due to an expected ICME arrival.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 093, gebaseerd op 09 stations.

Zon indexen voor 22 Apr 2023

Wolfgetal Catania///
10cm zonneflux141
AK Chambon La Forêt012
AK Wingst///
Geschatte Ap008
Geschat internationaal zonnevlekkengetal108 - Gebaseerd op 21 stations

Overzicht opvallende gebeurtenissen

DagStartMaxEindeLocatieSterkteOP10cmCatania/NOAASoorten radio-uitbarstingen
Geen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina

Op basis van de huidige parameters is er nu geen kans op poollicht in België en Nederland

Op basis van de huidige parameters is er in de nabije toekomst een beperkte kans op poollicht op de volgende locaties van de hoge breedtegraad

Tórshavn
Oulu, Rovaniemi, Sodankylä
Reykjavik
Trondheim
Kiruna, Luleå
De snelheid van de zonnewind is gematigd hoog (567.9 km/sec.)

Laatste nieuws

Steun Poollicht.be!

Om ook bereikbaar te blijven bij grote poollichtkansen hebben we een zware server nodig die alle bezoekers aankan. Doneer en steun dit project zodat we online blijven en je geen enkele poollichtkans mist!

Donneer SpaceWeatherLive Pro
Steun SpaceWeatherLive met onze merchandise
Check nu onze merchandise

Laatste alerts

zondag 6 april 2025
02:00 UTC - Geomagnetische activiteit

G1 - Kleine geomagnetische storm (Kp5) Drempel bereikt: 01:50 UTC

alert


zaterdag 5 april 2025
20:30 UTC - Geomagnetische activiteit

G1 - Kleine geomagnetische storm (Kp5) Drempel bereikt: 20:20 UTC

alert


20:24 UTC - Zonnevlam

Matige M1.05 zonnevlam

alert


20:09 UTC - Radio blackout

Kleine R1 radio blackout gedetecteerd (≥M1 - momenteel: M1.05)


10:00 UTC - Hemisferisch vermogen

Het OVATION-model voorspelt dat het hemisferisch vermogen 78GW zal bereiken om 10:32 UTC


Ontvang directe meldingen!

Ruimteweer feitjes

Laatste X-klasse uitbarsting28/03/2025X1.1
Laatste M-klasse uitbarsting05/04/2025M1.0
Laatste geomagnetische storm05/04/2025Kp6- (G2)
Zonnevlekkenloze dagen
Laatste zonnevlekkenloze dag08/06/2022
Maandelijks gemiddeld zonnevlekkengetal
maart 2025134.2 -20.4
april 2025150.4 +16.2
Afgelopen 30 dagen132.4 -10.1

Deze dag in de geschiedenis*

Zonnevlammen
12001X8.08
22004M3.44
32023M3.01
42000M2.7
52006M2.02
DstG
12000-291G4
21977-105G3
31988-100G2
41984-86
52010-81G1
*sinds 1994

Sociale netwerken