Het archief bekijken van zaterdag 15 augustus 2026

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2026 Aug 15 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
15 Aug 2026	114	008
16 Aug 2026	120	008
17 Aug 2026	130	012

Zonnevlekkengebieden en zonnevlammen

Solar flaring activity was low over the past 24 hours, with four C-class flares identified. The brightest was SIDC flare 8355, a C4 that peaked on 14 Aug at 21:55 UTC. It was emitted by SIDC Sunspot Group 941 (NOAA Active Region 4508, Beta magnetic configuration) that also produced the second brightest flare, SIDC flare 8361 (a C3 on 15 Aug at 08:18 UTC). More C-class flaring activity is expected in the next 24 hours, mostly from SIDC SG 941 and 939 (NOAA AR 4506, Beta magnetic configuration).

Coronale massa uitstoten

The SIDC Coronal Mass Ejection (CME) 707 can be seen in LASCO-C2 images as launched on 14 Aug at 7:12 UTC. It is associated with SIDC flare 8350 and the SIDC SG 936. A glancing blow is estimated to arrive on Earth the first half of 19 Aug. The SIDC CME 708 and 709 can seen in LASCO-C2 images as launched on 14 Aug at 11:12 and 17:48 UTC. They are back-sided events and are not expected to affect Earth.

Zonnewind

The Solar Wind (SW) conditions of the past 24 hours featured a typical slow SW regime. The SW speed ranged between 330 and 380 km/s, the interplanetary magnetic field (B) varied between 2 and 7 nT, and its North- South component (Bz) registered values from -6 to 4 nT. Similar conditions are expected for the next 24 hours.

Geomagnetisme

The geomagnetic conditions of the past 24 hours were at quiet levels globally (NOAA Kp 0+ to 2+) and up to unsettled levels locally (K BEL 1 to 3). In the next 24 hours they are expected to be at quiet to unsettled levels both globally and locally.

Proton flux niveaus

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at nominal levels over the past 24 hours and is likely to remain so in the next 24 hours.

Elektronenfluxen in geostationaire baan

The greater than 2 MeV electron flux, as measured by GOES 19, was below the 1000 pfu alert threshold for past 24 hours. It is expected to remain at the same levels in the next 24 hours. The electron fluence was at normal levels in the past 24 hours and it is expected to remain at the same levels in the next 24 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 109, gebaseerd op 16 stations.

Zon indexen voor 14 Aug 2026

Wolfgetal Catania	///
10cm zonneflux	114
AK Chambon La Forêt	///
AK Wingst	013
Geschatte Ap	016
Geschat internationaal zonnevlekkengetal	108 - Gebaseerd op 23 stations

Overzicht opvallende gebeurtenissen

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

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