Arşiv Salı, 26 Ağustos 2025 görüntüleniyor

SIDC'den güneş ve jeomanyetik aktivite hakkında günlük bülten

Yayınlandı: 2025 Aug 26 1231 UTC

SIDC Tahmini

Güneş patlamaları

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

Jeomanyetizma

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

Güneş protonları

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

	10cm akı	Ap
26 Aug 2025	175	020
27 Aug 2025	180	016
28 Aug 2025	182	007

Güneş Aktif Bölgeleri ve parlama

Solar flaring activity was moderate over the past 24 hours, with 4 M-class flares identified. The largest flare was a M4.5 flare (SIDC Flare 5237) peaking on August 26 at 05:25 UTC, which was produced by SIDC Sunspot Group 614 (NOAA Active Region 4197). That region and SIDC Sunspot Group 617 (NOAA Active Region 4199), both located close to the east limb, are driving most of the activity. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a small chance for X-class flares.

Koronal Kütle Atılımı

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

Koronal delikler

SIDC Coronal Hole 126 (northern mid-latitude coronal hole with negative polarity) is located in the western hemisphere and its related high speed solar wind stream may arrive to the Earth in the next 24 hours.

Güneş rüzgarı

The Earth is inside slow solar wind with speeds around 400 km/s and interplanetary magnetic fields of about 5 nT (directed towards the Sun, negative polarity). A high speed solar wind stream is expected to arrive in the next 24 hours, with probably only mild effects.

Jeomanyetizma

Geomagnetic conditions have been quiet to unsettled (Kp and B_Bel between 0 and 3). Similar conditions are expected until the arrival of the high speed solar wind stream in the next 24 hours (mostly active conditions expected then).

Proton akı seviyeleri

The greater than 10 MeV proton flux has continued to increase slowly and has almost reached the 10 pfu threshold, without going above it (currently at 9 pfu). A warning condition forecast is issued for the next 48 hours.

Jeostatik yörüngedeki elektron akıları

The greater than 2 MeV electron flux as measured by GOES 18 and 19 remained below the 1000 pfu alert threshold (except for a minimal crossing of the threshold between 13:00 and 26:00 UTC on 25 August, in GOES 19), similar conditions expected for the next 24 hours. The 24 h electron fluence was at normal levels and is expected to remain so.

Bugünün tahmini uluslararası güneş lekesi sayısı (ISN): 1 Tahmini gunes lekesi sayisi, 2 Istasyon sayisi.

25 Aug 2025 için güneş endeksleri

Kurt numarası Catania	125
10cm güneş akısı	175
AK Chambon La Forêt	016
AK Wingst	011
Tahmini Ap	009
Tahmini uluslararası güneş lekesi sayısı	139 - 32 istasyonlarına göre

Dikkat çeken olayların özeti

Güneş Etkileri Veri Analiz Merkezi tarafından sağlanmıştır© - SIDC - SpaceWeatherLive tarafından işlendi

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